A Plone content type used for baners with a string URL and a Reference Field to any other content type

banner.py

"""Definition of the banner content type
"""

from zope.interface import implements

from Products.Archetypes import atapi
from Products.ATContentTypes.content import base
from Products.ATContentTypes.content import schemata

# -*- Message Factory Imported Here -*-
from Products.Archetypes.public import BaseContent
from Products.ATContentTypes.content import base
from Products.ATContentTypes.content import schemata

from Products.ATContentTypes.content.schemata import ATContentTypeSchema
from Products.ATContentTypes.content.schemata import finalizeATCTSchema
from Products.ATContentTypes.content import image
from Products.ATReferenceBrowserWidget.ATReferenceBrowserWidget import ReferenceBrowserWidget


bannerSchema = image.ATImageSchema.copy() + atapi.Schema((

    # -*- Your Archetypes field definitions here ... -*-
    atapi.StringField(
        'LinkUrl',
        storage=atapi.AnnotationStorage(),
        widget=atapi.StringWidget(
            label=_(u"Link (URL)")
        ),
    ),

    atapi.ReferenceField(
        'ContentLink',
        widget=ReferenceBrowserWidget(
            label=_(u"Link to content")
        ),
        index_method="_at_edit_accessor",
        relationship='IsReferencedTo',
        multiValued=0,
    ),

))

# Set storage on fields copied from ATContentTypeSchema, making sure
# they work well with the python bridge properties.

bannerSchema['title'].storage = atapi.AnnotationStorage()
bannerSchema['description'].storage = atapi.AnnotationStorage()

schemata.finalizeATCTSchema(bannerSchema, moveDiscussion=False)


class banner(base.ATCTContent):
    """Banner"""
    implements(Ibanner)

    meta_type = "banner"
    schema = bannerSchema

    title = atapi.ATFieldProperty('title')
    description = atapi.ATFieldProperty('description')

    # -*- Your ATSchema to Python Property Bridges Here ... -*-
    LinkUrl = atapi.ATFieldProperty('LinkUrl')
    ContentLink = atapi.ATFieldProperty('ContentLink')

atapi.registerType(banner, PROJECTNAME)