2 from django.db import models |
2 from django.db import models |
3 from django.utils.translation import ugettext_lazy as _ |
3 from django.utils.translation import ugettext_lazy as _ |
4 from ldt.core.models import Document, Owner |
4 from ldt.core.models import Document, Owner |
5 from django.contrib.auth.models import User |
5 from django.contrib.auth.models import User |
6 import tagging.fields |
6 import tagging.fields |
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7 from tagging.models import Tag |
7 from utils import generate_uuid |
8 from utils import generate_uuid |
8 import os.path |
9 import os.path |
9 import uuid |
10 import uuid |
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11 import lxml |
10 #from django.core.management.validation import max_length |
12 #from django.core.management.validation import max_length |
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13 |
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14 def Property(func): |
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15 return property(**func()) |
11 |
16 |
12 |
17 |
13 class Annotation(models.Model): |
18 class Annotation(models.Model): |
14 external_id = models.CharField(max_length=1024, null=False, unique=True, default=generate_uuid, verbose_name=_('annotation.external_id')) |
19 external_id = models.CharField(max_length=1024, null=False, unique=True, default=generate_uuid, verbose_name=_('annotation.external_id')) |
15 uri = models.CharField(max_length=1024, verbose_name=_('annotation.uri')) |
20 uri = models.CharField(max_length=1024, verbose_name=_('annotation.uri')) |
16 tags = models.CharField(max_length=1024, null=True, blank=True, verbose_name=_('annotation.tags')) |
21 tags_field = tagging.fields.TagField(max_length=2048, null=True, blank=True, verbose_name=_('annotation.tags')) |
17 title = models.CharField(max_length=1024, null=True, blank=True, verbose_name=_('annotation.title')) |
22 title = models.CharField(max_length=1024, null=True, blank=True, verbose_name=_('annotation.title')) |
18 description = models.TextField(null=True, blank=True, verbose_name=_('annotation.description')) |
23 description = models.TextField(null=True, blank=True, verbose_name=_('annotation.description')) |
19 text = models.TextField(null=True, blank=True, verbose_name=_('annotation.text')) |
24 text = models.TextField(null=True, blank=True, verbose_name=_('annotation.text')) |
20 color = models.CharField(max_length=1024, verbose_name=_('annotation.color')) |
25 color = models.CharField(max_length=1024, verbose_name=_('annotation.color')) |
21 creator = models.CharField(max_length=1024, null=True, blank=True, verbose_name=_('creator.title')) |
26 creator = models.CharField(max_length=1024, null=True, blank=True, verbose_name=_('creator.title')) |
22 contributor = models.CharField(max_length=1024, null=True, blank=True, verbose_name=_('contributor.title')) |
27 contributor = models.CharField(max_length=1024, null=True, blank=True, verbose_name=_('contributor.title')) |
23 creation_date = models.DateTimeField(auto_now_add=True, verbose_name=_('annotation.creation_date')) |
28 creation_date = models.DateTimeField(auto_now_add=True, verbose_name=_('annotation.creation_date')) |
24 update_date = models.DateTimeField(auto_now=True, verbose_name=_('annotation.update_date')) |
29 update_date = models.DateTimeField(auto_now=True, verbose_name=_('annotation.update_date')) |
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30 |
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31 @Property |
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32 def tags(): |
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33 |
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34 def fget(self): |
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35 return ",".join(self.tag_list) |
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36 |
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37 def fset(self, value): |
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38 values = None |
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39 if type(value) == type([]): |
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40 values = value |
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41 elif value is not None: |
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42 values = [v.lower().strip() for v in unicode(value).split(",")] |
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43 |
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44 if values is not None: |
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45 self.tags_field = ",".join(values) + "," |
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46 else: |
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47 self.tags_field = None |
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48 |
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49 return locals() |
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50 |
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51 @Property |
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52 def tag_list(): |
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53 def fget(self): |
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54 return [t.name for t in Tag.objects.get_for_object(self)] |
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55 |
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56 return locals() |
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57 |
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58 |
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59 def get_tag_list(self): |
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60 tags = [] |
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61 if self.tags: |
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62 tags_list = unicode(self.tags) |
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63 for t in tags_list.split(","): |
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64 tags.append(t.strip()) |
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65 return tags |
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66 #return self.tags |
25 |
67 |
26 |
68 |
27 def __unicode__(self): |
69 def __unicode__(self): |
28 return unicode(self.external_id) + u": " + unicode(self.title) |
70 return unicode(self.external_id) + u": " + unicode(self.title) |
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71 |
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72 def serialize(self, root_element=None): |
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73 |
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74 if root_element is not None: |
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75 iri = root_element |
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76 else : |
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77 iri = lxml.etree.Element('iri') |
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78 doc = lxml.etree.ElementTree(iri) |
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79 |
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80 |
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81 textannotation = lxml.etree.SubElement(iri, 'text-annotation') |
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82 id = lxml.etree.SubElement(textannotation,'id') |
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83 id.text = self.external_id |
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84 uri = lxml.etree.SubElement(textannotation,'uri') |
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85 uri.text = self.uri |
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86 |
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87 if self.tags: |
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88 tags = lxml.etree.SubElement(textannotation, 'tags') |
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89 for t in self.get_tag_list(): |
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90 tag = lxml.etree.SubElement(tags, 'tag') |
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91 tag.text = t |
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92 |
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93 content = lxml.etree.SubElement(textannotation,'content') |
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94 color = lxml.etree.SubElement(content,'color') |
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95 color.text = self.color |
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96 description = lxml.etree.SubElement(content,'description') |
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97 description.text = self.description |
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98 title = lxml.etree.SubElement(content,'title') |
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99 title.text = self.title |
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100 text = lxml.etree.SubElement(content,'text') |
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101 text.text = self.text |
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102 |
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103 meta = lxml.etree.SubElement(textannotation,'meta') |
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104 contributor = lxml.etree.SubElement(meta, "contributor") |
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105 contributor.text = self.contributor |
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106 creator = lxml.etree.SubElement(meta, "creator") |
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107 creator.text = self.creator |
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108 creationdate = lxml.etree.SubElement(meta, "created") |
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109 creationdate.text = str(self.creation_date) |
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110 updatedate = lxml.etree.SubElement(meta, "modified") |
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111 updatedate.text = str(self.update_date) |
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112 |
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113 if root_element is not None: |
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114 return root_element |
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115 else: |
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116 return doc |
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117 |
29 |
118 |
30 @staticmethod |
119 @staticmethod |
31 def create_annotation(external_id, uri=None, tags=None, title=None, description=None, text=None, color=None, creator=None, contributor=None, creation_date=None, update_date=None): |
120 def create_annotation(external_id, uri=None, tags=None, title=None, description=None, text=None, color=None, creator=None, contributor=None, creation_date=None, update_date=None): |
32 annotation = Annotation(external_id=external_id, uri=uri, tags=tags, title=title, description=description, text=text, color=color, creator=creator, contributor=contributor, creation_date=creation_date, update_date=update_date) |
121 annotation = Annotation(external_id=external_id, uri=uri, tags=tags, title=title, description=description, text=text, color=color, creator=creator, contributor=contributor, creation_date=creation_date, update_date=update_date) |
33 annotation.save() |
122 annotation.save() |
34 |
123 |
35 return annotation |
124 return annotation |
36 |
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37 |
125 |