improve Crud view
This commit is contained in:
Lance Edgar
parent
e2c0aa14ba
commit
411ed8d31f
1 changed files with 32 additions and 436 deletions
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@ -26,19 +26,8 @@
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``edbob.pyramid.views.crud`` -- CRUD View Function
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``edbob.pyramid.views.crud`` -- CRUD View Function
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"""
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"""
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# from pyramid.renderers import render_to_response
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# from pyramid.httpexceptions import HTTPException, HTTPFound, HTTPOk, HTTPUnauthorized
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# import transaction
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from pyramid.httpexceptions import HTTPFound
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from pyramid.httpexceptions import HTTPFound
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# import sqlahelper
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# # import rattail.pyramid.forms.util as util
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# from rattail.db.perms import has_permission
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# from rattail.pyramid.forms.formalchemy import Grid
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import edbob
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from edbob.db import Base
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from edbob.pyramid import forms
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from edbob.pyramid import forms
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from edbob.pyramid import Session
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from edbob.pyramid import Session
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from edbob.util import requires_impl
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from edbob.util import requires_impl
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@ -46,7 +35,7 @@ from edbob.util import requires_impl
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class Crud(object):
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class Crud(object):
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routes = ['new', 'edit', 'delete']
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routes = ['create', 'read', 'update', 'delete']
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route_prefix = None
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route_prefix = None
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url_prefix = None
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url_prefix = None
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@ -85,13 +74,6 @@ class Crud(object):
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return forms.make_fieldset(model, **kwargs)
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return forms.make_fieldset(model, **kwargs)
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def fieldset(self, obj):
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def fieldset(self, obj):
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"""
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Creates, configures and returns the fieldset.
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.. note::
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You more than likely will want to override this.
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"""
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return self.make_fieldset(obj)
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return self.make_fieldset(obj)
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def post_sync(self, fs):
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def post_sync(self, fs):
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@ -100,29 +82,11 @@ class Crud(object):
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def validation_failed(self, fs):
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def validation_failed(self, fs):
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pass
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pass
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def crud(self, obj=None):
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def crud(self, model, readonly=False):
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if obj is None:
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obj = self.mapped_class
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# fs = self.fieldset(obj)
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fs = self.fieldset(model)
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# if not fs.readonly and self.request.POST:
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if readonly:
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# fs.rebind(data=self.request.params)
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fs.readonly = True
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# if fs.validate():
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# with transaction.manager:
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# fs.sync()
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# Session.add(fs.model)
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# Session.flush()
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# self.request.session.flash('%s "%s" has been %s.' % (
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# fs.crud_title, fs.get_display_text(),
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# 'updated' if fs.edit else 'created'))
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# if self.request.params.get('add-another') == '1':
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# return HTTPFound(location=self.request.current_route_url())
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# return HTTPFound(location=self.home_url)
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fs = self.fieldset(obj)
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if not fs.readonly and self.request.POST:
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if not fs.readonly and self.request.POST:
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fs.rebind(data=self.request.params)
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fs.rebind(data=self.request.params)
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if fs.validate():
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if fs.validate():
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@ -148,417 +112,49 @@ class Crud(object):
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self.validation_failed(fs)
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self.validation_failed(fs)
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# TODO: This probably needs attention.
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if not fs.edit:
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if not fs.edit:
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fs.allow_continue = True
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fs.allow_continue = True
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return {'fieldset': fs, 'crud': True}
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return {'fieldset': fs, 'crud': True}
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def new(self):
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def create(self):
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return self.crud(self.mapped_class)
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return self.crud(self.mapped_class)
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def edit(self):
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def read(self):
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uuid = self.request.matchdict['uuid']
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uuid = self.request.matchdict['uuid']
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obj = Session.query(self.mapped_class).get(uuid) if uuid else None
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model = Session.query(self.mapped_class).get(uuid) if uuid else None
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assert obj
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assert model
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return self.crud(obj)
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return self.crud(model, readonly=True)
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def update(self):
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uuid = self.request.matchdict['uuid']
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model = Session.query(self.mapped_class).get(uuid) if uuid else None
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assert model
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return self.crud(model)
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def delete(self):
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def delete(self):
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uuid = self.request.matchdict['uuid']
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uuid = self.request.matchdict['uuid']
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obj = Session.query(self.mapped_class).get(uuid) if uuid else None
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model = Session.query(self.mapped_class).get(uuid) if uuid else None
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assert obj
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assert model
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Session.delete(obj)
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Session.delete(model)
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return HTTPFound(location=self.home_url)
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return HTTPFound(location=self.home_url)
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@classmethod
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@classmethod
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def add_routes(cls, config):
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def add_routes(cls, config):
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"""
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route_name_prefix = cls.route_prefix or cls.mapped_class.__name__.lower()
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Add routes to the config object.
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route_url_prefix = cls.url_prefix or '/%ss' % route_name_prefix
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"""
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renderer_prefix = cls.template_prefix or route_url_prefix
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permission_prefix = cls.permission_prefix or '%ss' % route_name_prefix
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routes = cls.routes
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for route in cls.routes:
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if isinstance(routes, list):
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_routes = routes
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routes = {}
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for route in _routes:
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routes[route] = {}
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route_prefix = cls.route_prefix or cls.mapped_class.__name__.lower()
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url_prefix = cls.url_prefix or '/%ss' % route_prefix
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template_prefix = cls.template_prefix or url_prefix
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permission_prefix = cls.permission_prefix or '%ss' % route_prefix
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for action in routes:
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kw = dict(
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kw = dict(
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route='%s.%s' % (route_prefix, action),
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attr=route,
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renderer='%s/%s.mako' % (template_prefix, action),
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route_name='%s.%s' % (route_name_prefix, route),
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permission='%s.%s' % (permission_prefix, dict(new='create').get(action, action)),
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renderer='%s/%s.mako' % (renderer_prefix, route),
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permission='%s.%s' % (permission_prefix, route),
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)
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)
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if action == 'new':
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if route == 'create':
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kw['url'] = '%s/new' % url_prefix
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config.add_route(kw['route_name'], '%s/new' % route_url_prefix)
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else:
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else:
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kw['url'] = '%s/{uuid}/%s' % (url_prefix, action)
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config.add_route(kw['route_name'], '%s/{uuid}/%s' % (route_url_prefix, route))
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kw.update(routes[action])
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config.add_view(cls, http_cache=0, **kw)
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config.add_route(kw['route'], kw['url'])
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config.add_view(cls, attr=action, route_name=kw['route'], renderer=kw['renderer'],
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permission=kw['permission'], http_cache=0)
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# def crud(request, cls, fieldset_factory, home=None, delete=None, post_sync=None, pre_render=None):
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# """
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# Adds a common CRUD mechanism for objects.
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# ``cls`` should be a SQLAlchemy-mapped class, presumably deriving from
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# :class:`edbob.Object`.
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# ``fieldset_factory`` must be a callable which accepts the fieldset's
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# "model" as its only positional argument.
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# ``home`` will be used as the redirect location once a form is fully
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# validated and data saved. If you do not speficy this parameter, the
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# user will be redirected to be the CRUD page for the new object (e.g. so
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# an object may be created before certain properties may be edited).
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# ``delete`` may either be a string containing a URL to which the user
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# should be redirected after the object has been deleted, or else a
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# callback which will be executed *instead of* the normal algorithm
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# (which is merely to delete the object via the Session).
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# ``post_sync`` may be a callback which will be executed immediately
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# after :meth:`FieldSet.sync()` is called, i.e. after validation as well.
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# ``pre_render`` may be a callback which will be executed after any POST
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# processing has occured, but just before rendering.
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# """
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# uuid = request.params.get('uuid')
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# obj = Session.query(cls).get(uuid) if uuid else cls
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# assert obj
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# if request.params.get('delete'):
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# if delete:
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# if isinstance(delete, basestring):
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# with transaction.manager:
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# Session.delete(obj)
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# return HTTPFound(location=delete)
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# with transaction.manager:
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# res = delete(obj)
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# if res:
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# return res
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# else:
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# with transaction.manager:
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# Session.delete(obj)
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# if not home:
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# raise ValueError("Must specify 'home' or 'delete' url "
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# "in call to crud()")
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# return HTTPFound(location=home)
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# fs = fieldset_factory(obj)
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# # if not fs.readonly and self.request.params.get('fieldset'):
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# # fs.rebind(data=self.request.params)
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# # if fs.validate():
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# # fs.sync()
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# # if post_sync:
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# # res = post_sync(fs)
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# # if isinstance(res, HTTPFound):
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# # return res
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# # if self.request.params.get('partial'):
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# # self.Session.flush()
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# # return self.json_success(uuid=fs.model.uuid)
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# # return HTTPFound(location=self.request.route_url(objects, action='index'))
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# if not fs.readonly and request.POST:
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# fs.rebind(data=request.params)
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# if fs.validate():
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# with transaction.manager:
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# fs.sync()
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# if post_sync:
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# res = post_sync(fs)
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# if res:
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# return res
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# if request.params.get('partial'):
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# # Session.flush()
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# # return self.json_success(uuid=fs.model.uuid)
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# assert False, "need to fix this"
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# if not home:
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# fs.model = Session.merge(fs.model)
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# home = request.current_route_url(uuid=fs.model.uuid)
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# request.session.flash("%s \"%s\" has been %s." % (
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# fs.crud_title, fs.get_display_text(),
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# 'updated' if fs.edit else 'created'))
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# return HTTPFound(location=home)
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# data = {'fieldset': fs, 'crud': True}
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# if pre_render:
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# res = pre_render(fs)
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# if res:
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# if isinstance(res, HTTPException):
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# return res
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# data.update(res)
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# # data = {'fieldset':fs}
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# # if self.request.params.get('partial'):
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# # return render_to_response('/%s/crud_partial.mako' % objects,
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# # data, request=self.request)
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# # return data
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# return data
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# class needs_perm(object):
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# """
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# Decorator to be used for handler methods which should restrict access based
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# on the current user's permissions.
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# """
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# def __init__(self, permission, **kwargs):
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# self.permission = permission
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# self.kwargs = kwargs
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# def __call__(self, fn):
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# permission = self.permission
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# kw = self.kwargs
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# def wrapped(self):
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# if not self.request.current_user:
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# self.request.session['referrer'] = self.request.url_generator.current()
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# self.request.session.flash("You must be logged in to do that.", 'error')
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# return HTTPFound(location=self.request.route_url('login'))
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# if not has_permission(self.request.current_user, permission):
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# self.request.session.flash("You do not have permission to do that.", 'error')
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# home = kw.get('redirect', self.request.route_url('home'))
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# return HTTPFound(location=home)
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# return fn(self)
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# return wrapped
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# def needs_user(fn):
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# """
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# Decorator for handler methods which require simply that a user be currently
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# logged in.
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# """
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# def wrapped(self):
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# if not self.request.current_user:
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# self.request.session['referrer'] = self.request.url_generator.current()
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# self.request.session.flash("You must be logged in to do that.", 'error')
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# return HTTPFound(location=self.request.route_url('login'))
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# return fn(self)
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# return wrapped
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# class Handler(object):
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# def __init__(self, request):
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# self.request = request
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# self.Session = sqlahelper.get_session()
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# # def json_response(self, data={}):
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# # response = render_to_response('json', data, request=self.request)
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# # response.headers['Content-Type'] = 'application/json'
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# # return response
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# class CrudHandler(Handler):
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# # """
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# # This handler provides all the goodies typically associated with general
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# # CRUD functionality, e.g. search filters and grids.
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# # """
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# def crud(self, cls, fieldset_factory, home=None, delete=None, post_sync=None, pre_render=None):
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# """
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# Adds a common CRUD mechanism for objects.
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# ``cls`` should be a SQLAlchemy-mapped class, presumably deriving from
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# :class:`rattail.Object`.
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# ``fieldset_factory`` must be a callable which accepts the fieldset's
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# "model" as its only positional argument.
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# ``home`` will be used as the redirect location once a form is fully
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# validated and data saved. If you do not speficy this parameter, the
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# user will be redirected to be the CRUD page for the new object (e.g. so
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# an object may be created before certain properties may be edited).
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# ``delete`` may either be a string containing a URL to which the user
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# should be redirected after the object has been deleted, or else a
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# callback which will be executed *instead of* the normal algorithm
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# (which is merely to delete the object via the Session).
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# ``post_sync`` may be a callback which will be executed immediately
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# after ``FieldSet.sync()`` is called, i.e. after validation as well.
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# ``pre_render`` may be a callback which will be executed after any POST
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# processing has occured, but just before rendering.
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# """
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# uuid = self.request.params.get('uuid')
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# obj = self.Session.query(cls).get(uuid) if uuid else cls
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# assert obj
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# if self.request.params.get('delete'):
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# if delete:
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# if isinstance(delete, basestring):
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# self.Session.delete(obj)
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# return HTTPFound(location=delete)
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# res = delete(obj)
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# if res:
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# return res
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# else:
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# self.Session.delete(obj)
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# if not home:
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# raise ValueError("Must specify 'home' or 'delete' url "
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# "in call to CrudHandler.crud()")
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# return HTTPFound(location=home)
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# fs = fieldset_factory(obj)
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# # if not fs.readonly and self.request.params.get('fieldset'):
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# # fs.rebind(data=self.request.params)
|
|
||||||
# # if fs.validate():
|
|
||||||
# # fs.sync()
|
|
||||||
# # if post_sync:
|
|
||||||
# # res = post_sync(fs)
|
|
||||||
# # if isinstance(res, HTTPFound):
|
|
||||||
# # return res
|
|
||||||
# # if self.request.params.get('partial'):
|
|
||||||
# # self.Session.flush()
|
|
||||||
# # return self.json_success(uuid=fs.model.uuid)
|
|
||||||
# # return HTTPFound(location=self.request.route_url(objects, action='index'))
|
|
||||||
|
|
||||||
# if not fs.readonly and self.request.POST:
|
|
||||||
# # print self.request.POST
|
|
||||||
# fs.rebind(data=self.request.params)
|
|
||||||
# if fs.validate():
|
|
||||||
# fs.sync()
|
|
||||||
# if post_sync:
|
|
||||||
# res = post_sync(fs)
|
|
||||||
# if res:
|
|
||||||
# return res
|
|
||||||
# if self.request.params.get('partial'):
|
|
||||||
# self.Session.flush()
|
|
||||||
# return self.json_success(uuid=fs.model.uuid)
|
|
||||||
|
|
||||||
# if not home:
|
|
||||||
# self.Session.flush()
|
|
||||||
# home = self.request.url_generator.current() + '?uuid=' + fs.model.uuid
|
|
||||||
# self.request.session.flash("%s \"%s\" has been %s." % (
|
|
||||||
# fs.crud_title, fs.get_display_text(),
|
|
||||||
# 'updated' if fs.edit else 'created'))
|
|
||||||
# return HTTPFound(location=home)
|
|
||||||
|
|
||||||
# data = {'fieldset': fs, 'crud': True}
|
|
||||||
|
|
||||||
# if pre_render:
|
|
||||||
# res = pre_render(fs)
|
|
||||||
# if res:
|
|
||||||
# if isinstance(res, HTTPException):
|
|
||||||
# return res
|
|
||||||
# data.update(res)
|
|
||||||
|
|
||||||
# # data = {'fieldset':fs}
|
|
||||||
# # if self.request.params.get('partial'):
|
|
||||||
# # return render_to_response('/%s/crud_partial.mako' % objects,
|
|
||||||
# # data, request=self.request)
|
|
||||||
# # return data
|
|
||||||
|
|
||||||
# return data
|
|
||||||
|
|
||||||
# def grid(self, *args, **kwargs):
|
|
||||||
# """
|
|
||||||
# Convenience function which returns a grid. The only functionality this
|
|
||||||
# method adds is the ``session`` parameter.
|
|
||||||
# """
|
|
||||||
|
|
||||||
# return Grid(session=self.Session(), *args, **kwargs)
|
|
||||||
|
|
||||||
# # def get_grid(self, name, grid, query, search=None, url=None, **defaults):
|
|
||||||
# # """
|
|
||||||
# # Convenience function for obtaining the configuration for a grid,
|
|
||||||
# # and then obtaining the grid itself.
|
|
||||||
|
|
||||||
# # ``name`` is essentially the config key, e.g. ``'products.lookup'``, and
|
|
||||||
# # in fact is expected to take that precise form (where the first part is
|
|
||||||
# # considered the handler name and the second part the action name).
|
|
||||||
|
|
||||||
# # ``grid`` must be a callable with a signature of ``grid(query,
|
|
||||||
# # config)``, and ``query`` will be passed directly to the ``grid``
|
|
||||||
# # callable. ``search`` will be used to inform the grid of the search in
|
|
||||||
# # effect, if any. ``defaults`` will be used to customize the grid config.
|
|
||||||
# # """
|
|
||||||
|
|
||||||
# # if not url:
|
|
||||||
# # handler, action = name.split('.')
|
|
||||||
# # url = self.request.route_url(handler, action=action)
|
|
||||||
# # config = util.get_grid_config(name, self.request, search,
|
|
||||||
# # url=url, **defaults)
|
|
||||||
# # return grid(query, config)
|
|
||||||
|
|
||||||
# # def get_search_form(self, name, labels={}, **defaults):
|
|
||||||
# # """
|
|
||||||
# # Convenience function for obtaining the configuration for a search form,
|
|
||||||
# # and then obtaining the form itself.
|
|
||||||
|
|
||||||
# # ``name`` is essentially the config key, e.g. ``'products.lookup'``.
|
|
||||||
# # The ``labels`` dictionary can be used to override the default labels
|
|
||||||
# # displayed for the various search fields. The ``defaults`` dictionary
|
|
||||||
# # is used to customize the search config.
|
|
||||||
# # """
|
|
||||||
|
|
||||||
# # config = util.get_search_config(name, self.request,
|
|
||||||
# # self.filter_map(), **defaults)
|
|
||||||
# # form = util.get_search_form(config, **labels)
|
|
||||||
# # return form
|
|
||||||
|
|
||||||
# # def object_crud(self, cls, objects=None, post_sync=None):
|
|
||||||
# # """
|
|
||||||
# # This method is a desperate attempt to encapsulate shared CRUD logic
|
|
||||||
# # which is useful across all editable data objects.
|
|
||||||
|
|
||||||
# # ``objects``, if provided, should be the plural name for the class as
|
|
||||||
# # used in internal naming, e.g. ``'products'``. A default will be used
|
|
||||||
# # if you do not provide this value.
|
|
||||||
|
|
||||||
# # ``post_sync``, if provided, should be a callable which accepts a
|
|
||||||
# # ``formalchemy.Fieldset`` instance as its only argument. It will be
|
|
||||||
# # called immediately after the fieldset is synced.
|
|
||||||
# # """
|
|
||||||
|
|
||||||
# # if not objects:
|
|
||||||
# # objects = cls.__name__.lower() + 's'
|
|
||||||
|
|
||||||
# # uuid = self.request.params.get('uuid')
|
|
||||||
# # obj = self.Session.query(cls).get(uuid) if uuid else cls
|
|
||||||
# # assert obj
|
|
||||||
|
|
||||||
# # fs = self.fieldset(obj)
|
|
||||||
|
|
||||||
# # if not fs.readonly and self.request.params.get('fieldset'):
|
|
||||||
# # fs.rebind(data=self.request.params)
|
|
||||||
# # if fs.validate():
|
|
||||||
# # fs.sync()
|
|
||||||
# # if post_sync:
|
|
||||||
# # res = post_sync(fs)
|
|
||||||
# # if isinstance(res, HTTPFound):
|
|
||||||
# # return res
|
|
||||||
# # if self.request.params.get('partial'):
|
|
||||||
# # self.Session.flush()
|
|
||||||
# # return self.json_success(uuid=fs.model.uuid)
|
|
||||||
# # return HTTPFound(location=self.request.route_url(objects, action='index'))
|
|
||||||
|
|
||||||
# # data = {'fieldset':fs}
|
|
||||||
# # if self.request.params.get('partial'):
|
|
||||||
# # return render_to_response('/%s/crud_partial.mako' % objects,
|
|
||||||
# # data, request=self.request)
|
|
||||||
# # return data
|
|
||||||
|
|
||||||
# # def render_grid(self, grid, search=None, **kwargs):
|
|
||||||
# # """
|
|
||||||
# # Convenience function to render a standard grid. Really just calls
|
|
||||||
# # :func:`dtail.forms.util.render_grid()`.
|
|
||||||
# # """
|
|
||||||
|
|
||||||
# # return util.render_grid(self.request, grid, search, **kwargs)
|
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue