Improve Image field management (refs #1365)

* add a custom widget to allow display via prettyPhoto on forms
* disable resizing when the image is deleted
* fix "has image" search request to manage empty and null field for images
* fix deletion of files by the wizard
* fix initialization of instancied form for files and images

1 files changed, 5 insertions, 0 deletions

diff --git a/ishtar_common/widgets.py b/ishtar_common/widgets.py
index 94d7f709a..a97cfe70b 100644
--- a/ishtar_common/widgets.py
+++ b/ishtar_common/widgets.py
@@ -23,6 +23,7 @@ from django import forms
 from django.conf import settings

 from django.core.urlresolvers import resolve, reverse

 from django.db.models import fields

+from django.forms import ClearableFileInput

 from django.forms.widgets import flatatt

 from django.template import Context, loader

 from django.utils.encoding import smart_unicode

@@ -42,6 +43,10 @@ class DeleteWidget(forms.CheckboxInput):
         output.append('</td></tr>')

         return mark_safe('\n'.join(output))

 

+class ImageFileInput(ClearableFileInput):

+    template_with_initial = u'<span class="prettyPhoto">%(initial)s</span>'\

+                      u' %(clear_template)s<br />%(input_text)s: %(input)s'

+

 class SquareMeterWidget(forms.TextInput):

     def render(self, name, value, attrs=None):

         if not value: