<s> """<STR_LIT>""" <EOL> from twisted . internet import defer <EOL> from BermiInflector . Inflector import Inflector <EOL> from twistar . utils import joinWheres , deferredDict <EOL> def presenceOf ( obj , names , kwargs ) : <EOL> """<STR_LIT>""" <EOL> message = kwargs . get ( '<STR_LIT:message>' , "<STR_LIT>" ) <EOL> for name in names : <EOL> if getattr ( obj , name , "<STR_LIT>" ) in ( "<STR_LIT>" , None ) : <EOL> obj . errors . add ( name , message ) <EOL> def lengthOf ( obj , names , kwargs ) : <EOL> """<STR_LIT>""" <EOL> xr = kwargs . get ( '<STR_LIT>' , [ kwargs . get ( '<STR_LIT>' , <NUM_LIT:1> ) ] ) <EOL> minmax = ( str ( min ( xr ) ) , str ( max ( xr ) ) ) <EOL> if minmax [ <NUM_LIT:0> ] == minmax [ <NUM_LIT:1> ] : <EOL> message = kwargs . get ( '<STR_LIT:message>' , "<STR_LIT>" % minmax [ <NUM_LIT:0> ] ) <EOL> else : <EOL> message = kwargs . get ( '<STR_LIT:message>' , "<STR_LIT>" % minmax ) <EOL> for name in names : <EOL> val = getattr ( obj , name , "<STR_LIT>" ) <EOL> if val is None or not len ( val ) in xr : <EOL> obj . errors . add ( name , message ) <EOL> def uniquenessOf ( obj , names , kwargs ) : <EOL> """<STR_LIT>""" <EOL> message = kwargs . get ( '<STR_LIT:message>' , "<STR_LIT>" ) <EOL> def handle ( results ) : <EOL> for propname , value in results . items ( ) : <EOL> if value is not None : <EOL> obj . errors . add ( propname , message ) <EOL> ds = { } <EOL> for name in names : <EOL> where = [ "<STR_LIT>" % name , getattr ( obj , name , "<STR_LIT>" ) ] <EOL> if obj . id is not None : <EOL> where = joinWheres ( where , [ "<STR_LIT>" , obj . id ] ) <EOL> d = obj . __class__ . find ( where = where , limit = <NUM_LIT:1> ) <EOL> ds [ name ] = d <EOL> return deferredDict ( ds ) . addCallback ( handle ) <EOL> class Validator ( object ) : <EOL> """<STR_LIT>""" <EOL> VALIDATIONS = [ ] <EOL> @ classmethod <EOL> def clearValidations ( klass ) : <EOL> """<STR_LIT>""" <EOL> klass . VALIDATIONS = [ ] <EOL> @ classmethod <EOL> def addValidator ( klass , func ) : <EOL> """<STR_LIT>""" <EOL> klass . VALIDATIONS = klass . VALIDATIONS + [ func ] <EOL> @ classmethod <EOL> def validatesPresenceOf ( klass , * names , ** kwargs ) : <EOL> """<STR_LIT>""" <EOL> def vfunc ( obj ) : <EOL> return presenceOf ( obj , names , kwargs ) <EOL> klass . addValidator ( vfunc ) <EOL> @ classmethod <EOL> def validatesUniquenessOf ( klass , * names , ** kwargs ) : <EOL> """<STR_LIT>""" <EOL> def vfunc ( obj ) : <EOL> return uniquenessOf ( obj , names , kwargs ) <EOL> klass . addValidator ( vfunc ) <EOL> @ classmethod <EOL> def validatesLengthOf ( klass , * names , ** kwargs ) : <EOL> """<STR_LIT>""" <EOL> def vfunc ( obj ) : <EOL> return lengthOf ( obj , names , kwargs ) <EOL> klass . addValidator ( vfunc ) <EOL> @ classmethod <EOL> def _validate ( klass , obj ) : <EOL> """<STR_LIT>""" <EOL> ds = [ defer . maybeDeferred ( func , obj ) for func in klass . VALIDATIONS ] <EOL> return defer . DeferredList ( ds ) . addCallback ( lambda results : obj ) <EOL> class Errors ( dict ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self ) : <EOL> """<STR_LIT>""" <EOL> self . infl = Inflector ( ) <EOL> def add ( self , prop , error ) : <EOL> """<STR_LIT>""" <EOL> self [ prop ] = self . get ( prop , [ ] ) <EOL> msg = "<STR_LIT>" % ( self . infl . humanize ( prop ) , str ( error ) ) <EOL> if msg not in self [ prop ] : <EOL> self [ prop ] . append ( msg ) <EOL> def isEmpty ( self ) : <EOL> """<STR_LIT>""" <EOL> for value in self . itervalues ( ) : <EOL> if len ( value ) > <NUM_LIT:0> : <EOL> return False <EOL> return True <EOL> def errorsFor ( self , prop ) : <EOL> """<STR_LIT>""" <EOL> return self . get ( prop , [ ] ) <EOL> def __str__ ( self ) : <EOL> """<STR_LIT>""" <EOL> s = [ ] <EOL> for values in self . itervalues ( ) : <EOL> for value in values : <EOL> s . append ( value ) <EOL> if len ( s ) == <NUM_LIT:0> : <EOL> return "<STR_LIT>" <EOL> return "<STR_LIT:U+0020>" . join ( s ) <EOL> def __len__ ( self ) : <EOL> """<STR_LIT>""" <EOL> return sum ( [ len ( value ) for value in self . itervalues ( ) ] ) </s>
