newforms: Changed Table.as_table() and Table.as_ul() to put hidden-form errors…

newforms: Changed Table.as_table() and Table.as_ul() to put hidden-form errors at the top of the output rather than in field order

git-svn-id: http://code.djangoproject.com/svn/django/trunk@4173 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/newforms/forms.py

@@ -74,38 +74,38 @@ class Form(StrAndUnicode):
 
     def as_table(self):
         "Returns this form rendered as HTML <tr>s -- excluding the <table></table>."
+        top_errors = self.non_field_errors()
         output = []
-        if self.errors.get(NON_FIELD_ERRORS):
-            # Errors not corresponding to a particular field are displayed at the top.
-            output.append(u'<tr><td colspan="2">%s</td></tr>' % self.non_field_errors())
         for name, field in self.fields.items():
             bf = BoundField(self, field, name)
+            bf_errors = bf.errors
             if bf.is_hidden:
-                if bf.errors:
-                    new_errors = ErrorList(['(Hidden field %s) %s' % (name, e) for e in bf.errors])
-                    output.append(u'<tr><td colspan="2">%s</td></tr>' % new_errors)
+                if bf_errors:
+                    top_errors.extend(['(Hidden field %s) %s' % (name, e) for e in bf_errors])
                 output.append(str(bf))
             else:
-                if bf.errors:
-                    output.append(u'<tr><td colspan="2">%s</td></tr>' % bf.errors)
+                if bf_errors:
+                    output.append(u'<tr><td colspan="2">%s</td></tr>' % bf_errors)
                 output.append(u'<tr><td>%s</td><td>%s</td></tr>' % (bf.label_tag(escape(bf.verbose_name+':')), bf))
+        if top_errors:
+            output.insert(0, u'<tr><td colspan="2">%s</td></tr>' % top_errors)
         return u'\n'.join(output)
 
     def as_ul(self):
         "Returns this form rendered as HTML <li>s -- excluding the <ul></ul>."
+        top_errors = self.non_field_errors()
         output = []
-        if self.errors.get(NON_FIELD_ERRORS):
-            # Errors not corresponding to a particular field are displayed at the top.
-            output.append(u'<li>%s</li>' % self.non_field_errors())
         for name, field in self.fields.items():
             bf = BoundField(self, field, name)
             if bf.is_hidden:
-                if bf.errors:
-                    new_errors = ErrorList(['(Hidden field %s) %s' % (name, e) for e in bf.errors])
-                    output.append(u'<li>%s</li>' % new_errors)
+                new_errors = bf.errors # Cache in local variable.
+                if new_errors:
+                    top_errors.extend(['(Hidden field %s) %s' % (name, e) for e in new_errors])
                 output.append(str(bf))
             else:
                 output.append(u'<li>%s%s %s</li>' % (bf.errors, bf.label_tag(escape(bf.verbose_name+':')), bf))
+        if top_errors:
+            output.insert(0, u'<li>%s</li>' % top_errors)
         return u'\n'.join(output)
 
     def non_field_errors(self):

tests/regressiontests/forms/tests.py

@@ -1789,18 +1789,19 @@ With auto_id set, a HiddenInput still gets an ID, but it doesn't get a label.
 
 If a field with a HiddenInput has errors, the as_table() and as_ul() output
 will include the error message(s) with the text "(Hidden field [fieldname]) "
-prepended.
+prepended. This message is displayed at the top of the output, regardless of
+its field's order in the form.
 >>> p = Person({'first_name': 'John', 'last_name': 'Lennon', 'birthday': '1940-10-9'})
 >>> print p
+<tr><td colspan="2"><ul class="errorlist"><li>(Hidden field hidden_text) This field is required.</li></ul></td></tr>
 <tr><td>First name:</td><td><input type="text" name="first_name" value="John" /></td></tr>
 <tr><td>Last name:</td><td><input type="text" name="last_name" value="Lennon" /></td></tr>
-<tr><td colspan="2"><ul class="errorlist"><li>(Hidden field hidden_text) This field is required.</li></ul></td></tr>
 <input type="hidden" name="hidden_text" />
 <tr><td>Birthday:</td><td><input type="text" name="birthday" value="1940-10-9" /></td></tr>
 >>> print p.as_ul()
+<li><ul class="errorlist"><li>(Hidden field hidden_text) This field is required.</li></ul></li>
 <li>First name: <input type="text" name="first_name" value="John" /></li>
 <li>Last name: <input type="text" name="last_name" value="Lennon" /></li>
-<li><ul class="errorlist"><li>(Hidden field hidden_text) This field is required.</li></ul></li>
 <input type="hidden" name="hidden_text" />
 <li>Birthday: <input type="text" name="birthday" value="1940-10-9" /></li>