1 <?php |
1 <?php |
2 /** |
2 /** |
3 * Class for generating SQL clauses that filter a primary query according to date. |
3 * Class for generating SQL clauses that filter a primary query according to date. |
4 * |
4 * |
5 * WP_Date_Query is a helper that allows primary query classes, such as WP_Query, to filter |
5 * This file is deprecated, use 'wp-includes/class-wp-date-query.php' instead. |
6 * their results by date columns, by generating `WHERE` subclauses to be attached to the |
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7 * primary SQL query string. |
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8 * |
6 * |
9 * Attempting to filter by an invalid date value (eg month=13) will generate SQL that will |
7 * @deprecated 5.3.0 |
10 * return no results. In these cases, a _doing_it_wrong() error notice is also thrown. |
8 * @package WordPress |
11 * See WP_Date_Query::validate_date_values(). |
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12 * |
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13 * @link https://codex.wordpress.org/Function_Reference/WP_Query Codex page. |
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14 * |
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15 * @since 3.7.0 |
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16 */ |
9 */ |
17 class WP_Date_Query { |
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18 /** |
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19 * Array of date queries. |
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20 * |
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21 * See WP_Date_Query::__construct() for information on date query arguments. |
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22 * |
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23 * @since 3.7.0 |
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24 * @var array |
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25 */ |
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26 public $queries = array(); |
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27 |
10 |
28 /** |
11 _deprecated_file( basename( __FILE__ ), '5.3.0', 'wp-includes/class-wp-date-query.php' ); |
29 * The default relation between top-level queries. Can be either 'AND' or 'OR'. |
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30 * |
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31 * @since 3.7.0 |
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32 * @var string |
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33 */ |
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34 public $relation = 'AND'; |
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35 |
12 |
36 /** |
13 /** WP_Date_Query class */ |
37 * The column to query against. Can be changed via the query arguments. |
14 require_once ABSPATH . 'wp-includes/class-wp-date-query.php'; |
38 * |
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39 * @since 3.7.0 |
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40 * @var string |
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41 */ |
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42 public $column = 'post_date'; |
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43 |
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44 /** |
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45 * The value comparison operator. Can be changed via the query arguments. |
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46 * |
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47 * @since 3.7.0 |
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48 * @var array |
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49 */ |
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50 public $compare = '='; |
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51 |
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52 /** |
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53 * Supported time-related parameter keys. |
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54 * |
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55 * @since 4.1.0 |
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56 * @var array |
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57 */ |
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58 public $time_keys = array( 'after', 'before', 'year', 'month', 'monthnum', 'week', 'w', 'dayofyear', 'day', 'dayofweek', 'dayofweek_iso', 'hour', 'minute', 'second' ); |
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59 |
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60 /** |
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61 * Constructor. |
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62 * |
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63 * Time-related parameters that normally require integer values ('year', 'month', 'week', 'dayofyear', 'day', |
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64 * 'dayofweek', 'dayofweek_iso', 'hour', 'minute', 'second') accept arrays of integers for some values of |
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65 * 'compare'. When 'compare' is 'IN' or 'NOT IN', arrays are accepted; when 'compare' is 'BETWEEN' or 'NOT |
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66 * BETWEEN', arrays of two valid values are required. See individual argument descriptions for accepted values. |
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67 * |
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68 * @since 3.7.0 |
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69 * @since 4.0.0 The $inclusive logic was updated to include all times within the date range. |
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70 * @since 4.1.0 Introduced 'dayofweek_iso' time type parameter. |
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71 * |
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72 * @param array $date_query { |
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73 * Array of date query clauses. |
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74 * |
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75 * @type array { |
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76 * @type string $column Optional. The column to query against. If undefined, inherits the value of |
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77 * the `$default_column` parameter. Accepts 'post_date', 'post_date_gmt', |
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78 * 'post_modified','post_modified_gmt', 'comment_date', 'comment_date_gmt'. |
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79 * Default 'post_date'. |
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80 * @type string $compare Optional. The comparison operator. Accepts '=', '!=', '>', '>=', '<', '<=', |
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81 * 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN'. Default '='. |
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82 * @type string $relation Optional. The boolean relationship between the date queries. Accepts 'OR' or 'AND'. |
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83 * Default 'OR'. |
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84 * @type array { |
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85 * Optional. An array of first-order clause parameters, or another fully-formed date query. |
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86 * |
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87 * @type string|array $before { |
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88 * Optional. Date to retrieve posts before. Accepts `strtotime()`-compatible string, |
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89 * or array of 'year', 'month', 'day' values. |
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90 * |
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91 * @type string $year The four-digit year. Default empty. Accepts any four-digit year. |
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92 * @type string $month Optional when passing array.The month of the year. |
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93 * Default (string:empty)|(array:1). Accepts numbers 1-12. |
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94 * @type string $day Optional when passing array.The day of the month. |
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95 * Default (string:empty)|(array:1). Accepts numbers 1-31. |
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96 * } |
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97 * @type string|array $after { |
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98 * Optional. Date to retrieve posts after. Accepts `strtotime()`-compatible string, |
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99 * or array of 'year', 'month', 'day' values. |
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100 * |
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101 * @type string $year The four-digit year. Accepts any four-digit year. Default empty. |
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102 * @type string $month Optional when passing array. The month of the year. Accepts numbers 1-12. |
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103 * Default (string:empty)|(array:12). |
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104 * @type string $day Optional when passing array.The day of the month. Accepts numbers 1-31. |
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105 * Default (string:empty)|(array:last day of month). |
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106 * } |
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107 * @type string $column Optional. Used to add a clause comparing a column other than the |
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108 * column specified in the top-level `$column` parameter. Accepts |
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109 * 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt', |
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110 * 'comment_date', 'comment_date_gmt'. Default is the value of |
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111 * top-level `$column`. |
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112 * @type string $compare Optional. The comparison operator. Accepts '=', '!=', '>', '>=', |
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113 * '<', '<=', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN'. 'IN', |
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114 * 'NOT IN', 'BETWEEN', and 'NOT BETWEEN'. Comparisons support |
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115 * arrays in some time-related parameters. Default '='. |
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116 * @type bool $inclusive Optional. Include results from dates specified in 'before' or |
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117 * 'after'. Default false. |
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118 * @type int|array $year Optional. The four-digit year number. Accepts any four-digit year |
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119 * or an array of years if `$compare` supports it. Default empty. |
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120 * @type int|array $month Optional. The two-digit month number. Accepts numbers 1-12 or an |
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121 * array of valid numbers if `$compare` supports it. Default empty. |
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122 * @type int|array $week Optional. The week number of the year. Accepts numbers 0-53 or an |
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123 * array of valid numbers if `$compare` supports it. Default empty. |
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124 * @type int|array $dayofyear Optional. The day number of the year. Accepts numbers 1-366 or an |
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125 * array of valid numbers if `$compare` supports it. |
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126 * @type int|array $day Optional. The day of the month. Accepts numbers 1-31 or an array |
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127 * of valid numbers if `$compare` supports it. Default empty. |
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128 * @type int|array $dayofweek Optional. The day number of the week. Accepts numbers 1-7 (1 is |
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129 * Sunday) or an array of valid numbers if `$compare` supports it. |
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130 * Default empty. |
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131 * @type int|array $dayofweek_iso Optional. The day number of the week (ISO). Accepts numbers 1-7 |
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132 * (1 is Monday) or an array of valid numbers if `$compare` supports it. |
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133 * Default empty. |
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134 * @type int|array $hour Optional. The hour of the day. Accepts numbers 0-23 or an array |
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135 * of valid numbers if `$compare` supports it. Default empty. |
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136 * @type int|array $minute Optional. The minute of the hour. Accepts numbers 0-60 or an array |
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137 * of valid numbers if `$compare` supports it. Default empty. |
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138 * @type int|array $second Optional. The second of the minute. Accepts numbers 0-60 or an |
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139 * array of valid numbers if `$compare` supports it. Default empty. |
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140 * } |
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141 * } |
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142 * } |
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143 * @param string $default_column Optional. Default column to query against. Default 'post_date'. |
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144 * Accepts 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt', |
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145 * 'comment_date', 'comment_date_gmt'. |
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146 */ |
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147 public function __construct( $date_query, $default_column = 'post_date' ) { |
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148 if ( isset( $date_query['relation'] ) && 'OR' === strtoupper( $date_query['relation'] ) ) { |
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149 $this->relation = 'OR'; |
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150 } else { |
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151 $this->relation = 'AND'; |
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152 } |
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153 |
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154 if ( ! is_array( $date_query ) ) { |
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155 return; |
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156 } |
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157 |
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158 // Support for passing time-based keys in the top level of the $date_query array. |
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159 if ( ! isset( $date_query[0] ) && ! empty( $date_query ) ) { |
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160 $date_query = array( $date_query ); |
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161 } |
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162 |
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163 if ( empty( $date_query ) ) { |
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164 return; |
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165 } |
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166 |
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167 if ( ! empty( $date_query['column'] ) ) { |
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168 $date_query['column'] = esc_sql( $date_query['column'] ); |
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169 } else { |
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170 $date_query['column'] = esc_sql( $default_column ); |
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171 } |
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172 |
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173 $this->column = $this->validate_column( $this->column ); |
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174 |
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175 $this->compare = $this->get_compare( $date_query ); |
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176 |
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177 $this->queries = $this->sanitize_query( $date_query ); |
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178 } |
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179 |
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180 /** |
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181 * Recursive-friendly query sanitizer. |
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182 * |
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183 * Ensures that each query-level clause has a 'relation' key, and that |
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184 * each first-order clause contains all the necessary keys from |
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185 * `$defaults`. |
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186 * |
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187 * @since 4.1.0 |
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188 * |
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189 * @param array $queries |
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190 * @param array $parent_query |
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191 * |
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192 * @return array Sanitized queries. |
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193 */ |
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194 public function sanitize_query( $queries, $parent_query = null ) { |
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195 $cleaned_query = array(); |
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196 |
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197 $defaults = array( |
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198 'column' => 'post_date', |
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199 'compare' => '=', |
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200 'relation' => 'AND', |
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201 ); |
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202 |
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203 // Numeric keys should always have array values. |
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204 foreach ( $queries as $qkey => $qvalue ) { |
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205 if ( is_numeric( $qkey ) && ! is_array( $qvalue ) ) { |
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206 unset( $queries[ $qkey ] ); |
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207 } |
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208 } |
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209 |
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210 // Each query should have a value for each default key. Inherit from the parent when possible. |
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211 foreach ( $defaults as $dkey => $dvalue ) { |
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212 if ( isset( $queries[ $dkey ] ) ) { |
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213 continue; |
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214 } |
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215 |
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216 if ( isset( $parent_query[ $dkey ] ) ) { |
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217 $queries[ $dkey ] = $parent_query[ $dkey ]; |
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218 } else { |
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219 $queries[ $dkey ] = $dvalue; |
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220 } |
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221 } |
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222 |
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223 // Validate the dates passed in the query. |
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224 if ( $this->is_first_order_clause( $queries ) ) { |
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225 $this->validate_date_values( $queries ); |
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226 } |
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227 |
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228 foreach ( $queries as $key => $q ) { |
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229 if ( ! is_array( $q ) || in_array( $key, $this->time_keys, true ) ) { |
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230 // This is a first-order query. Trust the values and sanitize when building SQL. |
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231 $cleaned_query[ $key ] = $q; |
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232 } else { |
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233 // Any array without a time key is another query, so we recurse. |
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234 $cleaned_query[] = $this->sanitize_query( $q, $queries ); |
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235 } |
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236 } |
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237 |
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238 return $cleaned_query; |
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239 } |
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240 |
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241 /** |
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242 * Determine whether this is a first-order clause. |
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243 * |
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244 * Checks to see if the current clause has any time-related keys. |
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245 * If so, it's first-order. |
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246 * |
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247 * @since 4.1.0 |
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248 * |
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249 * @param array $query Query clause. |
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250 * @return bool True if this is a first-order clause. |
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251 */ |
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252 protected function is_first_order_clause( $query ) { |
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253 $time_keys = array_intersect( $this->time_keys, array_keys( $query ) ); |
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254 return ! empty( $time_keys ); |
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255 } |
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256 |
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257 /** |
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258 * Determines and validates what comparison operator to use. |
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259 * |
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260 * @since 3.7.0 |
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261 * |
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262 * @param array $query A date query or a date subquery. |
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263 * @return string The comparison operator. |
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264 */ |
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265 public function get_compare( $query ) { |
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266 if ( ! empty( $query['compare'] ) && in_array( $query['compare'], array( '=', '!=', '>', '>=', '<', '<=', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) { |
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267 return strtoupper( $query['compare'] ); |
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268 } |
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269 |
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270 return $this->compare; |
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271 } |
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272 |
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273 /** |
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274 * Validates the given date_query values and triggers errors if something is not valid. |
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275 * |
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276 * Note that date queries with invalid date ranges are allowed to |
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277 * continue (though of course no items will be found for impossible dates). |
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278 * This method only generates debug notices for these cases. |
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279 * |
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280 * @since 4.1.0 |
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281 * |
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282 * @param array $date_query The date_query array. |
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283 * @return bool True if all values in the query are valid, false if one or more fail. |
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284 */ |
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285 public function validate_date_values( $date_query = array() ) { |
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286 if ( empty( $date_query ) ) { |
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287 return false; |
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288 } |
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289 |
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290 $valid = true; |
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291 |
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292 /* |
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293 * Validate 'before' and 'after' up front, then let the |
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294 * validation routine continue to be sure that all invalid |
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295 * values generate errors too. |
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296 */ |
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297 if ( array_key_exists( 'before', $date_query ) && is_array( $date_query['before'] ) ) { |
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298 $valid = $this->validate_date_values( $date_query['before'] ); |
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299 } |
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300 |
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301 if ( array_key_exists( 'after', $date_query ) && is_array( $date_query['after'] ) ) { |
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302 $valid = $this->validate_date_values( $date_query['after'] ); |
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303 } |
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304 |
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305 // Array containing all min-max checks. |
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306 $min_max_checks = array(); |
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307 |
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308 // Days per year. |
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309 if ( array_key_exists( 'year', $date_query ) ) { |
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310 /* |
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311 * If a year exists in the date query, we can use it to get the days. |
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312 * If multiple years are provided (as in a BETWEEN), use the first one. |
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313 */ |
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314 if ( is_array( $date_query['year'] ) ) { |
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315 $_year = reset( $date_query['year'] ); |
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316 } else { |
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317 $_year = $date_query['year']; |
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318 } |
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319 |
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320 $max_days_of_year = date( 'z', mktime( 0, 0, 0, 12, 31, $_year ) ) + 1; |
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321 } else { |
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322 // otherwise we use the max of 366 (leap-year) |
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323 $max_days_of_year = 366; |
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324 } |
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325 |
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326 $min_max_checks['dayofyear'] = array( |
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327 'min' => 1, |
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328 'max' => $max_days_of_year, |
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329 ); |
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330 |
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331 // Days per week. |
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332 $min_max_checks['dayofweek'] = array( |
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333 'min' => 1, |
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334 'max' => 7, |
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335 ); |
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336 |
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337 // Days per week. |
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338 $min_max_checks['dayofweek_iso'] = array( |
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339 'min' => 1, |
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340 'max' => 7, |
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341 ); |
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342 |
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343 // Months per year. |
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344 $min_max_checks['month'] = array( |
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345 'min' => 1, |
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346 'max' => 12, |
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347 ); |
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348 |
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349 // Weeks per year. |
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350 if ( isset( $_year ) ) { |
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351 /* |
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352 * If we have a specific year, use it to calculate number of weeks. |
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353 * Note: the number of weeks in a year is the date in which Dec 28 appears. |
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354 */ |
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355 $week_count = date( 'W', mktime( 0, 0, 0, 12, 28, $_year ) ); |
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356 |
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357 } else { |
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358 // Otherwise set the week-count to a maximum of 53. |
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359 $week_count = 53; |
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360 } |
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361 |
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362 $min_max_checks['week'] = array( |
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363 'min' => 1, |
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364 'max' => $week_count, |
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365 ); |
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366 |
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367 // Days per month. |
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368 $min_max_checks['day'] = array( |
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369 'min' => 1, |
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370 'max' => 31, |
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371 ); |
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372 |
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373 // Hours per day. |
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374 $min_max_checks['hour'] = array( |
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375 'min' => 0, |
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376 'max' => 23, |
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377 ); |
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378 |
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379 // Minutes per hour. |
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380 $min_max_checks['minute'] = array( |
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381 'min' => 0, |
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382 'max' => 59, |
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383 ); |
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384 |
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385 // Seconds per minute. |
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386 $min_max_checks['second'] = array( |
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387 'min' => 0, |
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388 'max' => 59, |
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389 ); |
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390 |
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391 // Concatenate and throw a notice for each invalid value. |
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392 foreach ( $min_max_checks as $key => $check ) { |
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393 if ( ! array_key_exists( $key, $date_query ) ) { |
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394 continue; |
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395 } |
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396 |
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397 // Throw a notice for each failing value. |
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398 foreach ( (array) $date_query[ $key ] as $_value ) { |
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399 $is_between = $_value >= $check['min'] && $_value <= $check['max']; |
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400 |
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401 if ( ! is_numeric( $_value ) || ! $is_between ) { |
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402 $error = sprintf( |
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403 /* translators: Date query invalid date message: 1: invalid value, 2: type of value, 3: minimum valid value, 4: maximum valid value */ |
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404 __( 'Invalid value %1$s for %2$s. Expected value should be between %3$s and %4$s.' ), |
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405 '<code>' . esc_html( $_value ) . '</code>', |
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406 '<code>' . esc_html( $key ) . '</code>', |
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407 '<code>' . esc_html( $check['min'] ) . '</code>', |
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408 '<code>' . esc_html( $check['max'] ) . '</code>' |
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409 ); |
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410 |
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411 _doing_it_wrong( __CLASS__, $error, '4.1.0' ); |
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412 |
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413 $valid = false; |
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414 } |
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415 } |
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416 } |
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417 |
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418 // If we already have invalid date messages, don't bother running through checkdate(). |
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419 if ( ! $valid ) { |
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420 return $valid; |
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421 } |
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422 |
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423 $day_month_year_error_msg = ''; |
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424 |
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425 $day_exists = array_key_exists( 'day', $date_query ) && is_numeric( $date_query['day'] ); |
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426 $month_exists = array_key_exists( 'month', $date_query ) && is_numeric( $date_query['month'] ); |
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427 $year_exists = array_key_exists( 'year', $date_query ) && is_numeric( $date_query['year'] ); |
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428 |
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429 if ( $day_exists && $month_exists && $year_exists ) { |
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430 // 1. Checking day, month, year combination. |
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431 if ( ! wp_checkdate( $date_query['month'], $date_query['day'], $date_query['year'], sprintf( '%s-%s-%s', $date_query['year'], $date_query['month'], $date_query['day'] ) ) ) { |
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432 /* translators: 1: year, 2: month, 3: day of month */ |
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433 $day_month_year_error_msg = sprintf( |
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434 __( 'The following values do not describe a valid date: year %1$s, month %2$s, day %3$s.' ), |
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435 '<code>' . esc_html( $date_query['year'] ) . '</code>', |
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436 '<code>' . esc_html( $date_query['month'] ) . '</code>', |
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437 '<code>' . esc_html( $date_query['day'] ) . '</code>' |
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438 ); |
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439 |
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440 $valid = false; |
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441 } |
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442 } elseif ( $day_exists && $month_exists ) { |
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443 /* |
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444 * 2. checking day, month combination |
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445 * We use 2012 because, as a leap year, it's the most permissive. |
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446 */ |
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447 if ( ! wp_checkdate( $date_query['month'], $date_query['day'], 2012, sprintf( '2012-%s-%s', $date_query['month'], $date_query['day'] ) ) ) { |
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448 /* translators: 1: month, 2: day of month */ |
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449 $day_month_year_error_msg = sprintf( |
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450 __( 'The following values do not describe a valid date: month %1$s, day %2$s.' ), |
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451 '<code>' . esc_html( $date_query['month'] ) . '</code>', |
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452 '<code>' . esc_html( $date_query['day'] ) . '</code>' |
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453 ); |
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454 |
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455 $valid = false; |
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456 } |
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457 } |
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458 |
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459 if ( ! empty( $day_month_year_error_msg ) ) { |
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460 _doing_it_wrong( __CLASS__, $day_month_year_error_msg, '4.1.0' ); |
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461 } |
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462 |
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463 return $valid; |
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464 } |
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465 |
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466 /** |
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467 * Validates a column name parameter. |
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468 * |
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469 * Column names without a table prefix (like 'post_date') are checked against a whitelist of |
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470 * known tables, and then, if found, have a table prefix (such as 'wp_posts.') prepended. |
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471 * Prefixed column names (such as 'wp_posts.post_date') bypass this whitelist check, |
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472 * and are only sanitized to remove illegal characters. |
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473 * |
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474 * @since 3.7.0 |
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475 * |
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476 * @param string $column The user-supplied column name. |
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477 * @return string A validated column name value. |
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478 */ |
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479 public function validate_column( $column ) { |
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480 global $wpdb; |
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481 |
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482 $valid_columns = array( |
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483 'post_date', |
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484 'post_date_gmt', |
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485 'post_modified', |
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486 'post_modified_gmt', |
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487 'comment_date', |
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488 'comment_date_gmt', |
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489 'user_registered', |
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490 'registered', |
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491 'last_updated', |
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492 ); |
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493 |
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494 // Attempt to detect a table prefix. |
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495 if ( false === strpos( $column, '.' ) ) { |
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496 /** |
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497 * Filters the list of valid date query columns. |
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498 * |
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499 * @since 3.7.0 |
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500 * @since 4.1.0 Added 'user_registered' to the default recognized columns. |
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501 * |
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502 * @param string[] $valid_columns An array of valid date query columns. Defaults |
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503 * are 'post_date', 'post_date_gmt', 'post_modified', |
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504 * 'post_modified_gmt', 'comment_date', 'comment_date_gmt', |
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505 * 'user_registered' |
|
506 */ |
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507 if ( ! in_array( $column, apply_filters( 'date_query_valid_columns', $valid_columns ) ) ) { |
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508 $column = 'post_date'; |
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509 } |
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510 |
|
511 $known_columns = array( |
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512 $wpdb->posts => array( |
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513 'post_date', |
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514 'post_date_gmt', |
|
515 'post_modified', |
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516 'post_modified_gmt', |
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517 ), |
|
518 $wpdb->comments => array( |
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519 'comment_date', |
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520 'comment_date_gmt', |
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521 ), |
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522 $wpdb->users => array( |
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523 'user_registered', |
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524 ), |
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525 $wpdb->blogs => array( |
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526 'registered', |
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527 'last_updated', |
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528 ), |
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529 ); |
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530 |
|
531 // If it's a known column name, add the appropriate table prefix. |
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532 foreach ( $known_columns as $table_name => $table_columns ) { |
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533 if ( in_array( $column, $table_columns ) ) { |
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534 $column = $table_name . '.' . $column; |
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535 break; |
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536 } |
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537 } |
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538 } |
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539 |
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540 // Remove unsafe characters. |
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541 return preg_replace( '/[^a-zA-Z0-9_$\.]/', '', $column ); |
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542 } |
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543 |
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544 /** |
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545 * Generate WHERE clause to be appended to a main query. |
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546 * |
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547 * @since 3.7.0 |
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548 * |
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549 * @return string MySQL WHERE clause. |
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550 */ |
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551 public function get_sql() { |
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552 $sql = $this->get_sql_clauses(); |
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553 |
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554 $where = $sql['where']; |
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555 |
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556 /** |
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557 * Filters the date query WHERE clause. |
|
558 * |
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559 * @since 3.7.0 |
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560 * |
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561 * @param string $where WHERE clause of the date query. |
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562 * @param WP_Date_Query $this The WP_Date_Query instance. |
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563 */ |
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564 return apply_filters( 'get_date_sql', $where, $this ); |
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565 } |
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566 |
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567 /** |
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568 * Generate SQL clauses to be appended to a main query. |
|
569 * |
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570 * Called by the public WP_Date_Query::get_sql(), this method is abstracted |
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571 * out to maintain parity with the other Query classes. |
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572 * |
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573 * @since 4.1.0 |
|
574 * |
|
575 * @return array { |
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576 * Array containing JOIN and WHERE SQL clauses to append to the main query. |
|
577 * |
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578 * @type string $join SQL fragment to append to the main JOIN clause. |
|
579 * @type string $where SQL fragment to append to the main WHERE clause. |
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580 * } |
|
581 */ |
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582 protected function get_sql_clauses() { |
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583 $sql = $this->get_sql_for_query( $this->queries ); |
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584 |
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585 if ( ! empty( $sql['where'] ) ) { |
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586 $sql['where'] = ' AND ' . $sql['where']; |
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587 } |
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588 |
|
589 return $sql; |
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590 } |
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591 |
|
592 /** |
|
593 * Generate SQL clauses for a single query array. |
|
594 * |
|
595 * If nested subqueries are found, this method recurses the tree to |
|
596 * produce the properly nested SQL. |
|
597 * |
|
598 * @since 4.1.0 |
|
599 * |
|
600 * @param array $query Query to parse. |
|
601 * @param int $depth Optional. Number of tree levels deep we currently are. |
|
602 * Used to calculate indentation. Default 0. |
|
603 * @return array { |
|
604 * Array containing JOIN and WHERE SQL clauses to append to a single query array. |
|
605 * |
|
606 * @type string $join SQL fragment to append to the main JOIN clause. |
|
607 * @type string $where SQL fragment to append to the main WHERE clause. |
|
608 * } |
|
609 */ |
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610 protected function get_sql_for_query( $query, $depth = 0 ) { |
|
611 $sql_chunks = array( |
|
612 'join' => array(), |
|
613 'where' => array(), |
|
614 ); |
|
615 |
|
616 $sql = array( |
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617 'join' => '', |
|
618 'where' => '', |
|
619 ); |
|
620 |
|
621 $indent = ''; |
|
622 for ( $i = 0; $i < $depth; $i++ ) { |
|
623 $indent .= ' '; |
|
624 } |
|
625 |
|
626 foreach ( $query as $key => $clause ) { |
|
627 if ( 'relation' === $key ) { |
|
628 $relation = $query['relation']; |
|
629 } elseif ( is_array( $clause ) ) { |
|
630 |
|
631 // This is a first-order clause. |
|
632 if ( $this->is_first_order_clause( $clause ) ) { |
|
633 $clause_sql = $this->get_sql_for_clause( $clause, $query ); |
|
634 |
|
635 $where_count = count( $clause_sql['where'] ); |
|
636 if ( ! $where_count ) { |
|
637 $sql_chunks['where'][] = ''; |
|
638 } elseif ( 1 === $where_count ) { |
|
639 $sql_chunks['where'][] = $clause_sql['where'][0]; |
|
640 } else { |
|
641 $sql_chunks['where'][] = '( ' . implode( ' AND ', $clause_sql['where'] ) . ' )'; |
|
642 } |
|
643 |
|
644 $sql_chunks['join'] = array_merge( $sql_chunks['join'], $clause_sql['join'] ); |
|
645 // This is a subquery, so we recurse. |
|
646 } else { |
|
647 $clause_sql = $this->get_sql_for_query( $clause, $depth + 1 ); |
|
648 |
|
649 $sql_chunks['where'][] = $clause_sql['where']; |
|
650 $sql_chunks['join'][] = $clause_sql['join']; |
|
651 } |
|
652 } |
|
653 } |
|
654 |
|
655 // Filter to remove empties. |
|
656 $sql_chunks['join'] = array_filter( $sql_chunks['join'] ); |
|
657 $sql_chunks['where'] = array_filter( $sql_chunks['where'] ); |
|
658 |
|
659 if ( empty( $relation ) ) { |
|
660 $relation = 'AND'; |
|
661 } |
|
662 |
|
663 // Filter duplicate JOIN clauses and combine into a single string. |
|
664 if ( ! empty( $sql_chunks['join'] ) ) { |
|
665 $sql['join'] = implode( ' ', array_unique( $sql_chunks['join'] ) ); |
|
666 } |
|
667 |
|
668 // Generate a single WHERE clause with proper brackets and indentation. |
|
669 if ( ! empty( $sql_chunks['where'] ) ) { |
|
670 $sql['where'] = '( ' . "\n " . $indent . implode( ' ' . "\n " . $indent . $relation . ' ' . "\n " . $indent, $sql_chunks['where'] ) . "\n" . $indent . ')'; |
|
671 } |
|
672 |
|
673 return $sql; |
|
674 } |
|
675 |
|
676 /** |
|
677 * Turns a single date clause into pieces for a WHERE clause. |
|
678 * |
|
679 * A wrapper for get_sql_for_clause(), included here for backward |
|
680 * compatibility while retaining the naming convention across Query classes. |
|
681 * |
|
682 * @since 3.7.0 |
|
683 * |
|
684 * @param array $query Date query arguments. |
|
685 * @return array { |
|
686 * Array containing JOIN and WHERE SQL clauses to append to the main query. |
|
687 * |
|
688 * @type string $join SQL fragment to append to the main JOIN clause. |
|
689 * @type string $where SQL fragment to append to the main WHERE clause. |
|
690 * } |
|
691 */ |
|
692 protected function get_sql_for_subquery( $query ) { |
|
693 return $this->get_sql_for_clause( $query, '' ); |
|
694 } |
|
695 |
|
696 /** |
|
697 * Turns a first-order date query into SQL for a WHERE clause. |
|
698 * |
|
699 * @since 4.1.0 |
|
700 * |
|
701 * @param array $query Date query clause. |
|
702 * @param array $parent_query Parent query of the current date query. |
|
703 * @return array { |
|
704 * Array containing JOIN and WHERE SQL clauses to append to the main query. |
|
705 * |
|
706 * @type string $join SQL fragment to append to the main JOIN clause. |
|
707 * @type string $where SQL fragment to append to the main WHERE clause. |
|
708 * } |
|
709 */ |
|
710 protected function get_sql_for_clause( $query, $parent_query ) { |
|
711 global $wpdb; |
|
712 |
|
713 // The sub-parts of a $where part. |
|
714 $where_parts = array(); |
|
715 |
|
716 $column = ( ! empty( $query['column'] ) ) ? esc_sql( $query['column'] ) : $this->column; |
|
717 |
|
718 $column = $this->validate_column( $column ); |
|
719 |
|
720 $compare = $this->get_compare( $query ); |
|
721 |
|
722 $inclusive = ! empty( $query['inclusive'] ); |
|
723 |
|
724 // Assign greater- and less-than values. |
|
725 $lt = '<'; |
|
726 $gt = '>'; |
|
727 |
|
728 if ( $inclusive ) { |
|
729 $lt .= '='; |
|
730 $gt .= '='; |
|
731 } |
|
732 |
|
733 // Range queries. |
|
734 if ( ! empty( $query['after'] ) ) { |
|
735 $where_parts[] = $wpdb->prepare( "$column $gt %s", $this->build_mysql_datetime( $query['after'], ! $inclusive ) ); |
|
736 } |
|
737 if ( ! empty( $query['before'] ) ) { |
|
738 $where_parts[] = $wpdb->prepare( "$column $lt %s", $this->build_mysql_datetime( $query['before'], $inclusive ) ); |
|
739 } |
|
740 // Specific value queries. |
|
741 |
|
742 if ( isset( $query['year'] ) && $value = $this->build_value( $compare, $query['year'] ) ) { |
|
743 $where_parts[] = "YEAR( $column ) $compare $value"; |
|
744 } |
|
745 |
|
746 if ( isset( $query['month'] ) && $value = $this->build_value( $compare, $query['month'] ) ) { |
|
747 $where_parts[] = "MONTH( $column ) $compare $value"; |
|
748 } elseif ( isset( $query['monthnum'] ) && $value = $this->build_value( $compare, $query['monthnum'] ) ) { |
|
749 $where_parts[] = "MONTH( $column ) $compare $value"; |
|
750 } |
|
751 if ( isset( $query['week'] ) && false !== ( $value = $this->build_value( $compare, $query['week'] ) ) ) { |
|
752 $where_parts[] = _wp_mysql_week( $column ) . " $compare $value"; |
|
753 } elseif ( isset( $query['w'] ) && false !== ( $value = $this->build_value( $compare, $query['w'] ) ) ) { |
|
754 $where_parts[] = _wp_mysql_week( $column ) . " $compare $value"; |
|
755 } |
|
756 if ( isset( $query['dayofyear'] ) && $value = $this->build_value( $compare, $query['dayofyear'] ) ) { |
|
757 $where_parts[] = "DAYOFYEAR( $column ) $compare $value"; |
|
758 } |
|
759 |
|
760 if ( isset( $query['day'] ) && $value = $this->build_value( $compare, $query['day'] ) ) { |
|
761 $where_parts[] = "DAYOFMONTH( $column ) $compare $value"; |
|
762 } |
|
763 |
|
764 if ( isset( $query['dayofweek'] ) && $value = $this->build_value( $compare, $query['dayofweek'] ) ) { |
|
765 $where_parts[] = "DAYOFWEEK( $column ) $compare $value"; |
|
766 } |
|
767 |
|
768 if ( isset( $query['dayofweek_iso'] ) && $value = $this->build_value( $compare, $query['dayofweek_iso'] ) ) { |
|
769 $where_parts[] = "WEEKDAY( $column ) + 1 $compare $value"; |
|
770 } |
|
771 |
|
772 if ( isset( $query['hour'] ) || isset( $query['minute'] ) || isset( $query['second'] ) ) { |
|
773 // Avoid notices. |
|
774 foreach ( array( 'hour', 'minute', 'second' ) as $unit ) { |
|
775 if ( ! isset( $query[ $unit ] ) ) { |
|
776 $query[ $unit ] = null; |
|
777 } |
|
778 } |
|
779 |
|
780 if ( $time_query = $this->build_time_query( $column, $compare, $query['hour'], $query['minute'], $query['second'] ) ) { |
|
781 $where_parts[] = $time_query; |
|
782 } |
|
783 } |
|
784 |
|
785 /* |
|
786 * Return an array of 'join' and 'where' for compatibility |
|
787 * with other query classes. |
|
788 */ |
|
789 return array( |
|
790 'where' => $where_parts, |
|
791 'join' => array(), |
|
792 ); |
|
793 } |
|
794 |
|
795 /** |
|
796 * Builds and validates a value string based on the comparison operator. |
|
797 * |
|
798 * @since 3.7.0 |
|
799 * |
|
800 * @param string $compare The compare operator to use |
|
801 * @param string|array $value The value |
|
802 * @return string|false|int The value to be used in SQL or false on error. |
|
803 */ |
|
804 public function build_value( $compare, $value ) { |
|
805 if ( ! isset( $value ) ) { |
|
806 return false; |
|
807 } |
|
808 |
|
809 switch ( $compare ) { |
|
810 case 'IN': |
|
811 case 'NOT IN': |
|
812 $value = (array) $value; |
|
813 |
|
814 // Remove non-numeric values. |
|
815 $value = array_filter( $value, 'is_numeric' ); |
|
816 |
|
817 if ( empty( $value ) ) { |
|
818 return false; |
|
819 } |
|
820 |
|
821 return '(' . implode( ',', array_map( 'intval', $value ) ) . ')'; |
|
822 |
|
823 case 'BETWEEN': |
|
824 case 'NOT BETWEEN': |
|
825 if ( ! is_array( $value ) || 2 != count( $value ) ) { |
|
826 $value = array( $value, $value ); |
|
827 } else { |
|
828 $value = array_values( $value ); |
|
829 } |
|
830 |
|
831 // If either value is non-numeric, bail. |
|
832 foreach ( $value as $v ) { |
|
833 if ( ! is_numeric( $v ) ) { |
|
834 return false; |
|
835 } |
|
836 } |
|
837 |
|
838 $value = array_map( 'intval', $value ); |
|
839 |
|
840 return $value[0] . ' AND ' . $value[1]; |
|
841 |
|
842 default: |
|
843 if ( ! is_numeric( $value ) ) { |
|
844 return false; |
|
845 } |
|
846 |
|
847 return (int) $value; |
|
848 } |
|
849 } |
|
850 |
|
851 /** |
|
852 * Builds a MySQL format date/time based on some query parameters. |
|
853 * |
|
854 * You can pass an array of values (year, month, etc.) with missing parameter values being defaulted to |
|
855 * either the maximum or minimum values (controlled by the $default_to parameter). Alternatively you can |
|
856 * pass a string that will be run through strtotime(). |
|
857 * |
|
858 * @since 3.7.0 |
|
859 * |
|
860 * @param string|array $datetime An array of parameters or a strotime() string |
|
861 * @param bool $default_to_max Whether to round up incomplete dates. Supported by values |
|
862 * of $datetime that are arrays, or string values that are a |
|
863 * subset of MySQL date format ('Y', 'Y-m', 'Y-m-d', 'Y-m-d H:i'). |
|
864 * Default: false. |
|
865 * @return string|false A MySQL format date/time or false on failure |
|
866 */ |
|
867 public function build_mysql_datetime( $datetime, $default_to_max = false ) { |
|
868 $now = current_time( 'timestamp' ); |
|
869 |
|
870 if ( ! is_array( $datetime ) ) { |
|
871 |
|
872 /* |
|
873 * Try to parse some common date formats, so we can detect |
|
874 * the level of precision and support the 'inclusive' parameter. |
|
875 */ |
|
876 if ( preg_match( '/^(\d{4})$/', $datetime, $matches ) ) { |
|
877 // Y |
|
878 $datetime = array( |
|
879 'year' => intval( $matches[1] ), |
|
880 ); |
|
881 |
|
882 } elseif ( preg_match( '/^(\d{4})\-(\d{2})$/', $datetime, $matches ) ) { |
|
883 // Y-m |
|
884 $datetime = array( |
|
885 'year' => intval( $matches[1] ), |
|
886 'month' => intval( $matches[2] ), |
|
887 ); |
|
888 |
|
889 } elseif ( preg_match( '/^(\d{4})\-(\d{2})\-(\d{2})$/', $datetime, $matches ) ) { |
|
890 // Y-m-d |
|
891 $datetime = array( |
|
892 'year' => intval( $matches[1] ), |
|
893 'month' => intval( $matches[2] ), |
|
894 'day' => intval( $matches[3] ), |
|
895 ); |
|
896 |
|
897 } elseif ( preg_match( '/^(\d{4})\-(\d{2})\-(\d{2}) (\d{2}):(\d{2})$/', $datetime, $matches ) ) { |
|
898 // Y-m-d H:i |
|
899 $datetime = array( |
|
900 'year' => intval( $matches[1] ), |
|
901 'month' => intval( $matches[2] ), |
|
902 'day' => intval( $matches[3] ), |
|
903 'hour' => intval( $matches[4] ), |
|
904 'minute' => intval( $matches[5] ), |
|
905 ); |
|
906 } |
|
907 |
|
908 // If no match is found, we don't support default_to_max. |
|
909 if ( ! is_array( $datetime ) ) { |
|
910 // @todo Timezone issues here possibly |
|
911 return gmdate( 'Y-m-d H:i:s', strtotime( $datetime, $now ) ); |
|
912 } |
|
913 } |
|
914 |
|
915 $datetime = array_map( 'absint', $datetime ); |
|
916 |
|
917 if ( ! isset( $datetime['year'] ) ) { |
|
918 $datetime['year'] = gmdate( 'Y', $now ); |
|
919 } |
|
920 |
|
921 if ( ! isset( $datetime['month'] ) ) { |
|
922 $datetime['month'] = ( $default_to_max ) ? 12 : 1; |
|
923 } |
|
924 |
|
925 if ( ! isset( $datetime['day'] ) ) { |
|
926 $datetime['day'] = ( $default_to_max ) ? (int) date( 't', mktime( 0, 0, 0, $datetime['month'], 1, $datetime['year'] ) ) : 1; |
|
927 } |
|
928 |
|
929 if ( ! isset( $datetime['hour'] ) ) { |
|
930 $datetime['hour'] = ( $default_to_max ) ? 23 : 0; |
|
931 } |
|
932 |
|
933 if ( ! isset( $datetime['minute'] ) ) { |
|
934 $datetime['minute'] = ( $default_to_max ) ? 59 : 0; |
|
935 } |
|
936 |
|
937 if ( ! isset( $datetime['second'] ) ) { |
|
938 $datetime['second'] = ( $default_to_max ) ? 59 : 0; |
|
939 } |
|
940 |
|
941 return sprintf( '%04d-%02d-%02d %02d:%02d:%02d', $datetime['year'], $datetime['month'], $datetime['day'], $datetime['hour'], $datetime['minute'], $datetime['second'] ); |
|
942 } |
|
943 |
|
944 /** |
|
945 * Builds a query string for comparing time values (hour, minute, second). |
|
946 * |
|
947 * If just hour, minute, or second is set than a normal comparison will be done. |
|
948 * However if multiple values are passed, a pseudo-decimal time will be created |
|
949 * in order to be able to accurately compare against. |
|
950 * |
|
951 * @since 3.7.0 |
|
952 * |
|
953 * @param string $column The column to query against. Needs to be pre-validated! |
|
954 * @param string $compare The comparison operator. Needs to be pre-validated! |
|
955 * @param int|null $hour Optional. An hour value (0-23). |
|
956 * @param int|null $minute Optional. A minute value (0-59). |
|
957 * @param int|null $second Optional. A second value (0-59). |
|
958 * @return string|false A query part or false on failure. |
|
959 */ |
|
960 public function build_time_query( $column, $compare, $hour = null, $minute = null, $second = null ) { |
|
961 global $wpdb; |
|
962 |
|
963 // Have to have at least one |
|
964 if ( ! isset( $hour ) && ! isset( $minute ) && ! isset( $second ) ) { |
|
965 return false; |
|
966 } |
|
967 |
|
968 // Complex combined queries aren't supported for multi-value queries |
|
969 if ( in_array( $compare, array( 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) { |
|
970 $return = array(); |
|
971 |
|
972 if ( isset( $hour ) && false !== ( $value = $this->build_value( $compare, $hour ) ) ) { |
|
973 $return[] = "HOUR( $column ) $compare $value"; |
|
974 } |
|
975 |
|
976 if ( isset( $minute ) && false !== ( $value = $this->build_value( $compare, $minute ) ) ) { |
|
977 $return[] = "MINUTE( $column ) $compare $value"; |
|
978 } |
|
979 |
|
980 if ( isset( $second ) && false !== ( $value = $this->build_value( $compare, $second ) ) ) { |
|
981 $return[] = "SECOND( $column ) $compare $value"; |
|
982 } |
|
983 |
|
984 return implode( ' AND ', $return ); |
|
985 } |
|
986 |
|
987 // Cases where just one unit is set |
|
988 if ( isset( $hour ) && ! isset( $minute ) && ! isset( $second ) && false !== ( $value = $this->build_value( $compare, $hour ) ) ) { |
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989 return "HOUR( $column ) $compare $value"; |
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990 } elseif ( ! isset( $hour ) && isset( $minute ) && ! isset( $second ) && false !== ( $value = $this->build_value( $compare, $minute ) ) ) { |
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991 return "MINUTE( $column ) $compare $value"; |
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992 } elseif ( ! isset( $hour ) && ! isset( $minute ) && isset( $second ) && false !== ( $value = $this->build_value( $compare, $second ) ) ) { |
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993 return "SECOND( $column ) $compare $value"; |
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994 } |
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995 |
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996 // Single units were already handled. Since hour & second isn't allowed, minute must to be set. |
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997 if ( ! isset( $minute ) ) { |
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998 return false; |
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999 } |
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1000 |
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1001 $format = $time = ''; |
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1002 |
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1003 // Hour |
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1004 if ( null !== $hour ) { |
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1005 $format .= '%H.'; |
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1006 $time .= sprintf( '%02d', $hour ) . '.'; |
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1007 } else { |
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1008 $format .= '0.'; |
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1009 $time .= '0.'; |
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1010 } |
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1011 |
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1012 // Minute |
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1013 $format .= '%i'; |
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1014 $time .= sprintf( '%02d', $minute ); |
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1015 |
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1016 if ( isset( $second ) ) { |
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1017 $format .= '%s'; |
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1018 $time .= sprintf( '%02d', $second ); |
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1019 } |
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1020 |
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1021 return $wpdb->prepare( "DATE_FORMAT( $column, %s ) $compare %f", $format, $time ); |
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1022 } |
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1023 } |
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