corpus_parole: comparison cms/drupal/includes/database/pgsql/query.inc

equal deleted inserted replaced

-:07239de796bb
+:e756a8c72c3d
+<?php
+/**
+* @ingroup database
+* @{
+*/
+/**
+* @file
+* Query code for PostgreSQL embedded database engine.
+*/
+class InsertQuery_pgsql extends InsertQuery {
+public function execute() {
+if (!$this->preExecute()) {
+return NULL;
+}
+$stmt = $this->connection->prepareQuery((string) $this);
+// Fetch the list of blobs and sequences used on that table.
+$table_information = $this->connection->schema()->queryTableInformation($this->table);
+$max_placeholder = 0;
+$blobs = array();
+$blob_count = 0;
+foreach ($this->insertValues as $insert_values) {
+foreach ($this->insertFields as $idx => $field) {
+if (isset($table_information->blob_fields[$field])) {
+$blobs[$blob_count] = fopen('php://memory', 'a');
+fwrite($blobs[$blob_count], $insert_values[$idx]);
+rewind($blobs[$blob_count]);
+$stmt->bindParam(':db_insert_placeholder_' . $max_placeholder++, $blobs[$blob_count], PDO::PARAM_LOB);
+// Pre-increment is faster in PHP than increment.
+++$blob_count;
+}
+else {
+$stmt->bindParam(':db_insert_placeholder_' . $max_placeholder++, $insert_values[$idx]);
+}
+}
+// Check if values for a serial field has been passed.
+if (!empty($table_information->serial_fields)) {
+foreach ($table_information->serial_fields as $index => $serial_field) {
+$serial_key = array_search($serial_field, $this->insertFields);
+if ($serial_key !== FALSE) {
+$serial_value = $insert_values[$serial_key];
+// Force $last_insert_id to the specified value. This is only done
+// if $index is 0.
+if ($index == 0) {
+$last_insert_id = $serial_value;
+}
+// Set the sequence to the bigger value of either the passed
+// value or the max value of the column. It can happen that another
+// thread calls nextval() which could lead to a serial number being
+// used twice. However, trying to insert a value into a serial
+// column should only be done in very rare cases and is not thread
+// safe by definition.
+$this->connection->query("SELECT setval('" . $table_information->sequences[$index] . "', GREATEST(MAX(" . $serial_field . "), :serial_value)) FROM {" . $this->table . "}", array(':serial_value' => (int)$serial_value));
+}
+}
+}
+}
+if (!empty($this->fromQuery)) {
+// bindParam stores only a reference to the variable that is followed when
+// the statement is executed. We pass $arguments[$key] instead of $value
+// because the second argument to bindParam is passed by reference and
+// the foreach statement assigns the element to the existing reference.
+$arguments = $this->fromQuery->getArguments();
+foreach ($arguments as $key => $value) {
+$stmt->bindParam($key, $arguments[$key]);
+}
+}
+// PostgreSQL requires the table name to be specified explicitly
+// when requesting the last insert ID, so we pass that in via
+// the options array.
+$options = $this->queryOptions;
+if (!empty($table_information->sequences)) {
+$options['sequence_name'] = $table_information->sequences[0];
+}
+// If there are no sequences then we can't get a last insert id.
+elseif ($options['return'] == Database::RETURN_INSERT_ID) {
+$options['return'] = Database::RETURN_NULL;
+}
+// Only use the returned last_insert_id if it is not already set.
+if (!empty($last_insert_id)) {
+$this->connection->query($stmt, array(), $options);
+}
+else {
+$last_insert_id = $this->connection->query($stmt, array(), $options);
+}
+// Re-initialize the values array so that we can re-use this query.
+$this->insertValues = array();
+return $last_insert_id;
+}
+public function __toString() {
+// Create a sanitized comment string to prepend to the query.
+$comments = $this->connection->makeComment($this->comments);
+// Default fields are always placed first for consistency.
+$insert_fields = array_merge($this->defaultFields, $this->insertFields);
+// If we're selecting from a SelectQuery, finish building the query and
+// pass it back, as any remaining options are irrelevant.
+if (!empty($this->fromQuery)) {
+$insert_fields_string = $insert_fields ? ' (' . implode(', ', $insert_fields) . ') ' : ' ';
+return $comments . 'INSERT INTO {' . $this->table . '}' . $insert_fields_string . $this->fromQuery;
+}
+$query = $comments . 'INSERT INTO {' . $this->table . '} (' . implode(', ', $insert_fields) . ') VALUES ';
+$max_placeholder = 0;
+$values = array();
+if (count($this->insertValues)) {
+foreach ($this->insertValues as $insert_values) {
+$placeholders = array();
+// Default fields aren't really placeholders, but this is the most convenient
+// way to handle them.
+$placeholders = array_pad($placeholders, count($this->defaultFields), 'default');
+$new_placeholder = $max_placeholder + count($insert_values);
+for ($i = $max_placeholder; $i < $new_placeholder; ++$i) {
+$placeholders[] = ':db_insert_placeholder_' . $i;
+}
+$max_placeholder = $new_placeholder;
+$values[] = '(' . implode(', ', $placeholders) . ')';
+}
+}
+else {
+// If there are no values, then this is a default-only query. We still need to handle that.
+$placeholders = array_fill(0, count($this->defaultFields), 'default');
+$values[] = '(' . implode(', ', $placeholders) . ')';
+}
+$query .= implode(', ', $values);
+return $query;
+}
+}
+class UpdateQuery_pgsql extends UpdateQuery {
+public function execute() {
+$max_placeholder = 0;
+$blobs = array();
+$blob_count = 0;
+// Because we filter $fields the same way here and in __toString(), the
+// placeholders will all match up properly.
+$stmt = $this->connection->prepareQuery((string) $this);
+// Fetch the list of blobs and sequences used on that table.
+$table_information = $this->connection->schema()->queryTableInformation($this->table);
+// Expressions take priority over literal fields, so we process those first
+// and remove any literal fields that conflict.
+$fields = $this->fields;
+$expression_fields = array();
+foreach ($this->expressionFields as $field => $data) {
+if (!empty($data['arguments'])) {
+foreach ($data['arguments'] as $placeholder => $argument) {
+// We assume that an expression will never happen on a BLOB field,
+// which is a fairly safe assumption to make since in most cases
+// it would be an invalid query anyway.
+$stmt->bindParam($placeholder, $data['arguments'][$placeholder]);
+}
+}
+unset($fields[$field]);
+}
+foreach ($fields as $field => $value) {
+$placeholder = ':db_update_placeholder_' . ($max_placeholder++);
+if (isset($table_information->blob_fields[$field])) {
+$blobs[$blob_count] = fopen('php://memory', 'a');
+fwrite($blobs[$blob_count], $value);
+rewind($blobs[$blob_count]);
+$stmt->bindParam($placeholder, $blobs[$blob_count], PDO::PARAM_LOB);
+++$blob_count;
+}
+else {
+$stmt->bindParam($placeholder, $fields[$field]);
+}
+}
+if (count($this->condition)) {
+$this->condition->compile($this->connection, $this);
+$arguments = $this->condition->arguments();
+foreach ($arguments as $placeholder => $value) {
+$stmt->bindParam($placeholder, $arguments[$placeholder]);
+}
+}
+$options = $this->queryOptions;
+$options['already_prepared'] = TRUE;
+$this->connection->query($stmt, $options);
+return $stmt->rowCount();
+}
+}