[Zope3-Users] zope.schema.Object and custom widgets in formlib

Thu May 18 13:34:06 EDT 2006

hi there

I am having trouble getting form's generated for zope.schema.Object.   
After doing some more reading it looks like I should be using formlib  
instead of zope.app.form.browser.add.AddView and  
zope.app.form.browser.editview.EditView

(my new code will be at the bottom)

Which is fine because I was really having trouble getting  
zope.schema.Object to work properly.  Of course, now I am running  
into the same basic problem with formlib.  It looks like I need to  
specify some sort of custom widget for my zope.schema.Object.  If I  
don't I get the same ComponentLookupError I was getting with the old  
system.

I tried the zope.app.form.CustomWidgetFactory, and that actually got  
that part of the form to show up but it didn't work right.  If  
someone could tell me what I should be doing that would be great.

Also.... one other kinda bizarre thing, in my formlib form all the  
button text and messages where in German (I think, my German is a  
little rusty).

An aside... I have been really surprised by the lack of other people  
having the same problems or working examples else where.  I think I'm  
trying to do something very basic that would come up in lots of  
applications.  This makes me think that I'm going about this the  
wrong way, or the solution is very simple and I'm just being too  
dense to get it.  So basically, if anyone out there has some  
commentary on my approach to this problem I would really appreciate it.

thanks.

-jachin

# -=interfaces.py=-

from zope.interface import Interface
from zope.schema import TextLine, Int, Object

class IStreetAddress(Interface):
	"""A street address"""

	street = TextLine(
		title=u"street",
		description=u"",
		required=False)

class IABookEntry(Interface):
	"""An address book entry"""
	streetAddress = Object(
		schema=IStreetAddress,
		title=u"Street Address",
		description=u"",
		required=False)

	firstName = TextLine(
		title=u"First Name",
		description=u"",
		required=False)

# -=entry.py=-

from zope.interface import implements
from zope.formlib import form
from zope.schema.fieldproperty import FieldProperty
from zope.app.form import CustomWidgetFactory
from zope.app.form.browser import ObjectWidget
from persistent import Persistent
from interfaces import IStreetAddress
from interfaces import IABookEntry

class StreetAddress(Persistent):
	"""The Street Address object."""

	implements(IStreetAddress)

class ABookEntry(Persistent):
	"""The Address Book Entry object."""
	implements(IABookEntry)
	streetAddress = StreetAddress
	firstName = u""

class ABookEntryEditView(form.EditForm):
	form_fields = form.Fields(IABookEntry)
	form_fields["streetAddress"].custom_widget =
											    ^^^^^^^^^^^^
										what should go here?

<!-- -=configure.zcml=- -->

<configure
	xmlns="http://namespaces.zope.org/zope"
	xmlns:browser="http://namespaces.zope.org/browser">

	<content class=".entry.StreetAddress">
		<require
			permission="zope.View"
			interface=".interfaces.IStreetAddress"
			/>
		<require
			permission="zope.ManageContent"
			set_schema=".interfaces.IStreetAddress"
			/>
	</content>

	<content class=".entry.ABookEntry">
		<require
			permission="zope.View"
			interface=".interfaces.IABookEntry"
			/>
		<require
			permission="zope.ManageContent"
			set_schema=".interfaces.IABookEntry"
			/>
	</content>

	<browser:page
		for=".entry.IABookEntry"
		name="index.html"
		template="entry.pt"

		class=".entry.ABookEntry"
		permission="zope.Public"

		/>

	<browser:page
		for=".entry.IABookEntry"
		name="edit.html"
		template="edit.pt"
		class=".entry.ABookEntryEditView"
		menu="zmi_views"
		title="Edit"
		permission="zope.ManageContent"
		/>

	<browser:addMenuItem
		title="ABook Entry"
		class=".entry.ABookEntry"
		permission="zope.ManageContent"
		/>

</configure>

<!-- -=entry.pt=- -->

<html metal:use-macro="context/@@standard_macros/view">
<body>
<div metal:fill-slot="body" tal:content="view">
</div>
</body>
</html>

<!-- -=edit.pt=- -->

<html metal:use-macro="context/@@standard_macros/view">
<body>
<div metal:fill-slot="body" tal:content="view">
</div>
</body>
</html>