Python RelatedField 예제들

예제 #1

파일: models.py 프로젝트: vincentrosso/django-simple-history

 def contribute_to_class(self, cls, name):
     # HACK: remove annoying descriptor (don't super())
     RelatedField.contribute_to_class(self, cls, name)

예제 #2

파일: db.py 프로젝트: LegoStormtroopr/django-data-interrogator

    template = '%(expressions)s'
    arg_joiner = ' - '
    arity = 2

    def __init__(self, start, end):
        super(DateDiff, self).__init__(start, end)

    def as_microsoft(self, compiler, connection):
        self.template = 'cast(DateDiff(day,%(expressions)s) as float)* -1 *24*60*60*1000.0*1000.0' # Convert to microseconds as used by Django DurationField'
        self.arg_joiner = ', '
        return super(DateDiff, self).as_sql(compiler, connection)

    def as_sql(self, compiler, connection, function=None, template=None):
        if connection.vendor is 'microsoft':
            return self.as_microsoft(compiler, connection)
        return super(DateDiff, self).as_sql(compiler, connection)


class NotEqual(Lookup):
    lookup_name = 'ne'

    def as_sql(self, qn, connection):
        lhs, lhs_params = self.process_lhs(qn, connection)
        rhs, rhs_params = self.process_rhs(qn, connection)
        params = lhs_params + rhs_params
        return '%s != %s' % (lhs, rhs), params
Field.register_lookup(NotEqual)
RelatedField.register_lookup(NotEqual)
ForeignObject.register_lookup(NotEqual)
ManyToManyField.register_lookup(NotEqual)

예제 #3

 def contribute_to_class(self, cls, name):
     # HACK: remove annoying descriptor (don't super())
     RelatedField.contribute_to_class(self, cls, name)

예제 #4

파일: db.py 프로젝트: cloudchng/django-data-interrogator

    arity = 2

    def __init__(self, start, end):
        super(DateDiff, self).__init__(start, end)

    def as_microsoft(self, compiler, connection):
        self.template = 'cast(DateDiff(day,%(expressions)s) as float)* -1 *24*60*60*1000.0*1000.0'  # Convert to microseconds as used by Django DurationField'
        self.arg_joiner = ', '
        return super(DateDiff, self).as_sql(compiler, connection)

    def as_sql(self, compiler, connection, function=None, template=None):
        if connection.vendor is 'microsoft':
            return self.as_microsoft(compiler, connection)
        return super(DateDiff, self).as_sql(compiler, connection)


class NotEqual(Lookup):
    lookup_name = 'ne'

    def as_sql(self, qn, connection):
        lhs, lhs_params = self.process_lhs(qn, connection)
        rhs, rhs_params = self.process_rhs(qn, connection)
        params = lhs_params + rhs_params
        return '%s != %s' % (lhs, rhs), params


Field.register_lookup(NotEqual)
RelatedField.register_lookup(NotEqual)
ForeignObject.register_lookup(NotEqual)
ManyToManyField.register_lookup(NotEqual)