Class IS_IN_SET

source code

object --+    
         |    
 Validator --+
             |
            IS_IN_SET

Known Subclasses:

• IS_IN_SUBSET

example:

   INPUT(_type='text', _name='name',
         requires=IS_IN_SET(['max', 'john'],zero=''))

the argument of IS_IN_SET must be a list or set

>>> IS_IN_SET(['max', 'john'])('max')
('max', None)
>>> IS_IN_SET(['max', 'john'])('massimo')
('massimo', 'value not allowed')
>>> IS_IN_SET(['max', 'john'], multiple=True)(('max', 'john'))
(('max', 'john'), None)
>>> IS_IN_SET(['max', 'john'], multiple=True)(('bill', 'john'))
(('bill', 'john'), 'value not allowed')
>>> IS_IN_SET(('id1','id2'), ['first label','second label'])('id1') # Traditional way
('id1', None)
>>> IS_IN_SET({'id1':'first label', 'id2':'second label'})('id1')
('id1', None)
>>> import itertools
>>> IS_IN_SET(itertools.chain(['1','3','5'],['2','4','6']))('1')
('1', None)
>>> IS_IN_SET([('id1','first label'), ('id2','second label')])('id1') # Redundant way
('id1', None)