Fixed #3456 -- Made it easier/more intuitive to render newforms help_text in templates

git-svn-id: http://code.djangoproject.com/svn/django/trunk@4521 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/newforms/forms.py

@@ -218,6 +218,7 @@ class BoundField(StrAndUnicode):
             self.label = pretty_name(name)
         else:
             self.label = self.field.label
+        self.help_text = field.help_text
 
     def __unicode__(self):
         "Renders this field as an HTML widget."

tests/regressiontests/forms/tests.py

@@ -2936,7 +2936,7 @@ VALID: {'username': u'adrian', 'password1': u'secret', 'password2': u'secret'}
 # Some ideas for using templates with forms ###################################
 
 >>> class UserRegistration(Form):
-...    username = CharField(max_length=10)
+...    username = CharField(max_length=10, help_text="Good luck picking a username that doesn't already exist.")
 ...    password1 = CharField(widget=PasswordInput)
 ...    password2 = CharField(widget=PasswordInput)
 ...    def clean(self):
@@ -3013,6 +3013,22 @@ field an "id" attribute.
 <input type="submit" />
 </form>
 
+User form.[field].help_text to output a field's help text. If the given field
+does not have help text, nothing will be output.
+>>> t = Template('''<form action="">
+... <p>{{ form.username.label_tag }}: {{ form.username }}<br />{{ form.username.help_text }}</p>
+... <p>{{ form.password1.label_tag }}: {{ form.password1 }}</p>
+... <p>{{ form.password2.label_tag }}: {{ form.password2 }}</p>
+... <input type="submit" />
+... </form>''')
+>>> print t.render(Context({'form': UserRegistration(auto_id=False)}))
+<form action="">
+<p>Username: <input type="text" name="username" maxlength="10" /><br />Good luck picking a username that doesn't already exist.</p>
+<p>Password1: <input type="password" name="password1" /></p>
+<p>Password2: <input type="password" name="password2" /></p>
+<input type="submit" />
+</form>
+
 The label_tag() method takes an optional attrs argument: a dictionary of HTML
 attributes to add to the <label> tag.
 >>> f = UserRegistration(auto_id='id_%s')