more filters (type, subject)
[redakcja.git] / apps / catalogue / forms.py
index f6b2dc9..36dbef7 100644 (file)
 # This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
-from django.contrib.auth.models import User
-from django.db.models import Count
+from django.utils.encoding import force_text
+from django.utils.html import format_html
+from django.utils.safestring import mark_safe
+
+from catalogue.models import Category
+from catalogue.models import Tag
 from django import forms
 from django.utils.translation import ugettext_lazy as _
 
 from catalogue.constants import MASTERS
-from catalogue.models import Book, Chunk
-
-class DocumentCreateForm(forms.ModelForm):
-    """
-        Form used for creating new documents.
-    """
-    file = forms.FileField(required=False)
-    text = forms.CharField(required=False, widget=forms.Textarea)
 
-    class Meta:
-        model = Book
-        exclude = ['gallery', 'parent', 'parent_number']
-        prepopulated_fields = {'slug': ['title']}
 
-    def clean(self):
-        super(DocumentCreateForm, self).clean()
-        file = self.cleaned_data['file']
-
-        if file is not None:
-            try:
-                self.cleaned_data['text'] = file.read().decode('utf-8')
-            except UnicodeDecodeError:
-                raise forms.ValidationError("Text file must be UTF-8 encoded.")
+def tag_field(category_tag, required=True):
+    category = Category.objects.get(dc_tag=category_tag)
+    return forms.ModelMultipleChoiceField(queryset=category.tag_set.all(), required=required)
 
-        if not self.cleaned_data["text"]:
-            raise forms.ValidationError("You must either enter text or upload a file")
 
-        return self.cleaned_data
+class DocumentCreateForm(forms.Form):
+    """
+        Form used for creating new documents.
+    """
+    owner_organization = forms.CharField(required=False)
+    title = forms.CharField()
+    publisher = forms.CharField(required=False)
+    description = forms.CharField(required=False)
+    cover = forms.FileField(required=False)
+
+    def clean_cover(self):
+        cover = self.cleaned_data['cover']
+        if cover and cover.name.rsplit('.', 1)[-1].lower() not in ('jpg', 'jpeg', 'png', 'gif', 'svg'):
+            raise forms.ValidationError(_('The cover should be an image file (jpg/png/gif)'))
+        return file
+
+
+class TagForm(forms.Form):
+    def __init__(self, category, instance=None, tutorial_no=None, *args, **kwargs):
+        super(TagForm, self).__init__(*args, **kwargs)
+        self.category = category
+        self.instance = instance
+        self.field().queryset = Tag.objects.filter(category=self.category)
+        self.field().label = self.category.label.capitalize()
+        if tutorial_no and category.tutorial:
+            self.field().widget.attrs.update({
+                'data-toggle': 'tutorial',
+                'data-tutorial': str(tutorial_no),
+                'data-placement': 'bottom',
+                'data-content': category.tutorial,
+            })
+        if self.instance:
+            self.field().initial = self.get_initial()
+
+    def save(self, instance=None):
+        instance = instance or self.instance
+        assert instance, 'No instance provided'
+        self.category.set_tags_for(instance, self.cleaned_tags())
+
+    def field(self):
+        raise NotImplementedError
+
+    def get_initial(self):
+        raise NotImplementedError
+
+    def cleaned_tags(self):
+        raise NotImplementedError
+
+    def metadata_rows(self):
+        return '\n'.join(
+            '<dc:%(name)s>%(value)s</dc:%(name)s>' % {'name': tag.category.dc_tag, 'value': tag.dc_value}
+            for tag in self.cleaned_tags())
+
+
+class TagSelect(forms.Select):
+    def render_option(self, selected_choices, option_value, option_label):
+        if option_value is None:
+            option_value = ''
+        help_html = ''
+        if option_value:
+            tag = Tag.objects.get(id=int(option_value))
+            if tag.help_text:
+                help_html = mark_safe(' data-help="%s"' % tag.help_text)
+        option_value = force_text(option_value)
+        if option_value in selected_choices:
+            selected_html = mark_safe(' selected="selected"')
+            if not self.allow_multiple_selected:
+                # Only allow for a single selection.
+                selected_choices.remove(option_value)
+        else:
+            selected_html = ''
+        return format_html(
+            u'<option value="{}"{}{}>{}</option>',
+            option_value, selected_html, help_html, force_text(option_label))
+
+
+class TagSingleForm(TagForm):
+    tag = forms.ModelChoiceField(
+        Tag.objects.none(),
+        widget=TagSelect(attrs={
+            'class': 'form-control',
+        })
+    )
+
+    def field(self):
+        return self.fields['tag']
+
+    def get_initial(self):
+        return self.instance.tags.get(category=self.category)
+
+    def cleaned_tags(self):
+        return [self.cleaned_data['tag']]
+
+
+class TagMultipleForm(TagForm):
+    tags = forms.ModelMultipleChoiceField(
+        Tag.objects.none(), required=False,
+        widget=forms.SelectMultiple(attrs={
+            'class': 'chosen-select',
+            'data-placeholder': _('Choose'),
+        }))
+
+    def field(self):
+        return self.fields['tags']
+
+    def get_initial(self):
+        return self.instance.tags.filter(category=self.category)
+
+    def cleaned_tags(self):
+        return self.cleaned_data['tags']
 
 
 class DocumentsUploadForm(forms.Form):
@@ -44,8 +137,9 @@ class DocumentsUploadForm(forms.Form):
         Form used for uploading new documents.
     """
     file = forms.FileField(required=True, label=_('ZIP file'))
-    dirs = forms.BooleanField(label=_('Directories are documents in chunks'),
-            widget = forms.CheckboxInput(attrs={'disabled':'disabled'}))
+    dirs = forms.BooleanField(
+        label=_('Directories are documents in chunks'),
+        widget=forms.CheckboxInput(attrs={'disabled': 'disabled'}))
 
     def clean(self):
         file = self.cleaned_data['file']
@@ -61,66 +155,16 @@ class DocumentsUploadForm(forms.Form):
         return self.cleaned_data
 
 
-class ChunkForm(forms.ModelForm):
-    """
-        Form used for editing a chunk.
-    """
-    user = forms.ModelChoiceField(queryset=
-        User.objects.annotate(count=Count('chunk')).
-        order_by('-count', 'last_name', 'first_name'), required=False)
-
-
-    class Meta:
-        model = Chunk
-        exclude = ['number']
-
-    def clean_slug(self):
-        slug = self.cleaned_data['slug']
-        try:
-            chunk = Chunk.objects.get(book=self.instance.book, slug=slug)
-        except Chunk.DoesNotExist:
-            return slug
-        if chunk == self.instance:
-            return slug
-        raise forms.ValidationError(_('Chunk with this slug already exists'))
-
-
-class ChunkAddForm(ChunkForm):
-    """
-        Form used for adding a chunk to a document.
-    """
-
-    def clean_slug(self):
-        slug = self.cleaned_data['slug']
-        try:
-            user = Chunk.objects.get(book=self.instance.book, slug=slug)
-        except Chunk.DoesNotExist:
-            return slug
-        raise forms.ValidationError(_('Chunk with this slug already exists'))
-
-
-class BookAppendForm(forms.Form):
-    """
-        Form for appending a book to another book.
-        It means moving all chunks from book A to book B and deleting A.
-    """
-
-    append_to = forms.ModelChoiceField(queryset=Book.objects.all(),
-        label=_("Append to"))
-
-
-class BookForm(forms.ModelForm):
+class ChooseMasterForm(forms.Form):
     """
-        Form used for editing a Book.
+        Form used for fixing the chunks in a book.
     """
 
-    class Meta:
-        model = Book
+    master = forms.ChoiceField(choices=((m, m) for m in MASTERS))
 
 
-class ChooseMasterForm(forms.Form):
+class DocumentForkForm(forms.Form):
     """
-        Form used for fixing the chunks in a book.
+        Form used for forking documents.
     """
-
-    master = forms.ChoiceField(choices=((m, m) for m in MASTERS))
+    owner_organization = forms.CharField(required=False)