X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/0cae17bec6d31806615fae59a5b3945016285fbe..b93544446c1afb2324e12cef0e670705893797cd:/apps/catalogue/fields.py?ds=inline
diff --git a/apps/catalogue/fields.py b/apps/catalogue/fields.py
index e1a356ef0..57ce58189 100644
--- a/apps/catalogue/fields.py
+++ b/apps/catalogue/fields.py
@@ -1,51 +1,162 @@
# -*- coding: utf-8 -*-
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+import datetime
+from functools import wraps
+
+from django.conf import settings
+from django.db import models
+from django.db.models.fields.files import FieldFile
+from django.db.models import signals
from django import forms
from django.forms.widgets import flatatt
-from django.forms.util import smart_unicode
+from django.utils.encoding import smart_unicode
+from django.utils import simplejson as json
from django.utils.html import escape
from django.utils.safestring import mark_safe
-from django.utils.simplejson import dumps
+from django.utils.translation import ugettext_lazy as _
+
+
+class JSONEncoder(json.JSONEncoder):
+ def default(self, obj):
+ if isinstance(obj, datetime.datetime):
+ return obj.strftime('%Y-%m-%d %H:%M:%S')
+ elif isinstance(obj, datetime.date):
+ return obj.strftime('%Y-%m-%d')
+ elif isinstance(obj, datetime.time):
+ return obj.strftime('%H:%M:%S')
+ return json.JSONEncoder.default(self, obj)
+
+
+def dumps(data):
+ return JSONEncoder().encode(data)
+
+
+def loads(str):
+ return json.loads(str, encoding=settings.DEFAULT_CHARSET)
+
+
+class JSONFormField(forms.CharField):
+ widget = forms.Textarea
+
+ def clean(self, value):
+ try:
+ loads(value)
+ return value
+ except ValueError, e:
+ raise forms.ValidationError(_('Enter a valid JSON value. Error: %s') % e)
+
+
+class JSONField(models.TextField):
+ def formfield(self, **kwargs):
+ defaults = {'form_class': JSONFormField}
+ defaults.update(kwargs)
+ return super(JSONField, self).formfield(**defaults)
+
+ def db_type(self, connection):
+ return 'text'
+
+ def get_internal_type(self):
+ return 'TextField'
+
+ def contribute_to_class(self, cls, name):
+ super(JSONField, self).contribute_to_class(cls, name)
+
+ def get_value(model_instance):
+ return loads(getattr(model_instance, self.attname, None))
+ setattr(cls, 'get_%s_value' % self.name, get_value)
+
+ def set_value(model_instance, json):
+ return setattr(model_instance, self.attname, dumps(json))
+ setattr(cls, 'set_%s_value' % self.name, set_value)
class JQueryAutoCompleteWidget(forms.TextInput):
- def __init__(self, source, options=None, *args, **kwargs):
- self.source = source
- self.options = None
- if options:
- self.options = dumps(options)
+ def __init__(self, options, *args, **kwargs):
+ self.options = dumps(options)
super(JQueryAutoCompleteWidget, self).__init__(*args, **kwargs)
-
- def render_js(self, field_id):
- source = "'%s'" % escape(self.source)
- options = ''
- if self.options:
- options += ', %s' % self.options
-
- return u'$(\'#%s\').autocomplete(%s%s);' % (field_id, source, options)
-
+
+ def render_js(self, field_id, options):
+ return u'$(\'#%s\').autocomplete(%s).result(autocomplete_result_handler);' % (field_id, options)
+
def render(self, name, value=None, attrs=None):
final_attrs = self.build_attrs(attrs, name=name)
if value:
final_attrs['value'] = smart_unicode(value)
-
+
if not self.attrs.has_key('id'):
final_attrs['id'] = 'id_%s' % name
-
+
html = u'''
-
''' % {
- 'attrs' : flatatt(final_attrs),
- 'js' : self.render_js(final_attrs['id']),
+ 'attrs': flatatt(final_attrs),
+ 'js' : self.render_js(final_attrs['id'], self.options),
}
-
+
return mark_safe(html)
+class JQueryAutoCompleteSearchWidget(JQueryAutoCompleteWidget):
+ def __init__(self, *args, **kwargs):
+ super(JQueryAutoCompleteSearchWidget, self).__init__(*args, **kwargs)
+
+ def render_js(self, field_id, options):
+ return u"""
+ $('#%s')
+ .autocomplete($.extend({
+ minLength: 0,
+ select: autocomplete_result_handler,
+ focus: function (ui, item) { return false; }
+ }, %s))
+ .data("autocomplete")._renderItem = autocomplete_format_item;
+ """ % (field_id, options)
+
+
class JQueryAutoCompleteField(forms.CharField):
- def __init__(self, source, options=None, *args, **kwargs):
+ def __init__(self, source, options={}, *args, **kwargs):
if 'widget' not in kwargs:
- kwargs['widget'] = JQueryAutoCompleteWidget(source, options)
-
+ options['source'] = source
+ kwargs['widget'] = JQueryAutoCompleteWidget(options)
+
super(JQueryAutoCompleteField, self).__init__(*args, **kwargs)
+
+class JQueryAutoCompleteSearchField(forms.CharField):
+ def __init__(self, source, options={}, *args, **kwargs):
+ if 'widget' not in kwargs:
+ options['source'] = source
+ kwargs['widget'] = JQueryAutoCompleteSearchWidget(options)
+
+ super(JQueryAutoCompleteSearchField, self).__init__(*args, **kwargs)
+
+
+class OverwritingFieldFile(FieldFile):
+ """
+ Deletes the old file before saving the new one.
+ """
+
+ def save(self, name, content, *args, **kwargs):
+ leave = kwargs.pop('leave', None)
+ # delete if there's a file already and there's a new one coming
+ if not leave and self and (not hasattr(content, 'path') or
+ content.path != self.path):
+ self.delete(save=False)
+ return super(OverwritingFieldFile, self).save(
+ name, content, *args, **kwargs)
+
+
+class OverwritingFileField(models.FileField):
+ attr_class = OverwritingFieldFile
+
+
+try:
+ # check for south
+ from south.modelsinspector import add_introspection_rules
+
+ add_introspection_rules([], ["^catalogue\.fields\.JSONField"])
+ add_introspection_rules([], ["^catalogue\.fields\.OverwritingFileField"])
+except ImportError:
+ pass