1 #!/usr/bin/python2.5

     2 #

     3 # Copyright 2008 the Melange authors.

     4 #

     5 # Licensed under the Apache License, Version 2.0 (the "License");

     6 # you may not use this file except in compliance with the License.

     7 # You may obtain a copy of the License at

     8 #

     9 #   http://www.apache.org/licenses/LICENSE-2.0

    10 #

    11 # Unless required by applicable law or agreed to in writing, software

    12 # distributed under the License is distributed on an "AS IS" BASIS,

    13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    14 # See the License for the specific language governing permissions and

    15 # limitations under the License.

    16 

    17 """Works (Model) query functions.

    18 """

    19 

    20 __authors__ = [

    21   '"Todd Larsen" <tlarsen@google.com>',

    22   ]

    23 

    24 

    25 from google.appengine.ext import db

    26 

    27 from soc.logic import model

    28 

    29 import soc.models.work

    30 

    31 

    32 def getWorksForLimitAndOffset(limit, offset=0, cls=soc.models.work.Work):

    33   """Returns Works for given offset and limit or None if not found.

    34     

    35   Args:

    36     limit: max amount of entities to return

    37     offset: optional offset in entities list which defines first entity to

    38       return; default is zero (first entity)

    39     cls: Model class of items to return (including sub-classes of that type);

    40       default is Work

    41   """

    42   query = db.GqlQuery(model.buildOrderedQueryString(

    43       soc.models.work.Work, derived_class=cls, order_by='title'))

    44  

    45   return query.fetch(limit, offset)