Python库 | megrok.z3cform.crud-0.1.tar.gz

Crud ==== This module gives you an abstract base class to make CRUD forms with. These forms give you by default a tabular view of the objects, where attributes of the object can be edited in-place. Please refer to the ``ICrudForm`` interface for more details. >>> from megrok.z3cform.crud import crud Form registration ================= Models ------ We set up some models to serve as a form context:: >>> import grokcore.component as grok >>> from zope import interface, schema >>> class IPerson(interface.Interface): ... name = schema.TextLine(title=u"Name") ... age = schema.Int(title=u"Age") >>> class Person(grok.Context): ... grok.implements(IPerson) ... name = schema.fieldproperty.FieldProperty(IPerson['name']) ... age = schema.fieldproperty.FieldProperty(IPerson['age']) ... ... def __init__(self, name, age): ... self.name = name ... self.age = age >>> class IPersonContainer(interface.Interface): ... pass >>> class PersonContainer(dict): ... grok.implements(IPersonContainer) For this test, we take the the name of our persons as keys in our storage: >>> storage = PersonContainer() >>> storage['Peter'] = Person(u'Peter', 16) >>> storage['Martha'] = Person(u'Martha', 32) We declare the Form with the help of megrok.z3cform.base. It's very similar to a grok.View:: >>> import megrok.z3cform.base as z3cform >>> class TestForm(crud.CrudForm): ... grok.context(IPersonContainer) ... ... update_schema = IPerson ... ... def get_items(self): ... return sorted(storage.items(), key=lambda x: x[1].name) ... ... def add(self, data): ... person = Person(**data) ... storage[str(person.name)] = person ... return person ... ... def remove(self, (id, item)): ... del storage[id] Grokking and querying --------------------- We let Grok register the component:: >>> grok.testing.grok_component('form', TestForm) True Now, we can query it normally:: >>> from zope.publisher.browser import TestRequest >>> request = TestRequest() >>> from zope.component import getMultiAdapter >>> myform = getMultiAdapter((storage, request), name="testform") >>> myform <TestForm object at ...> >>> print myform() <form action="http://127.0.0.1" method="post" enctype="multipart/form-data" class="form-testform"> ...