Пример #1
0
    def compress(self, data_list):
        # Reimporting models from froms is tricky, and may lead to circular ImportErrors
        # Hence, importing here locally.
        from any_urlfield.models.values import AnyUrlValue

        if data_list:
            type_prefix = data_list[0]    # avoid `id, *values = data_list` notation, that is python 3 syntax.
            values = data_list[1:]

            # May happen when deleting models in formsets
            if type_prefix is None or type_prefix == '':
                return None

            urltype = self.url_type_registry[type_prefix]
            value_index = self.url_type_registry.index(type_prefix)
            value = values[value_index]

            if type_prefix == 'http':
                return AnyUrlValue(type_prefix, value, self.url_type_registry)
            else:
                if urltype.has_id_value:
                    if isinstance(value, Model):
                        value = value.pk   # Auto cast foreign keys to integer.
                    elif value:
                        value = long(value)
                    else:
                        return None
                return AnyUrlValue(type_prefix, value, self.url_type_registry)
        return None
Пример #2
0
    def compress(self, data_list):
        if data_list:
            type_prefix = data_list[
                0]  # avoid `id, *values = data_list` notation, that is python 3 syntax.
            values = data_list[1:]

            # May happen when deleting models in formsets
            if type_prefix is None or type_prefix == '':
                return None

            urltype = self.url_type_registry[type_prefix]
            value_index = self.url_type_registry.index(type_prefix)
            value = values[value_index]

            if type_prefix == 'http':
                return AnyUrlValue(type_prefix, value, self.url_type_registry)
            else:
                if urltype.has_id_value:
                    if isinstance(value, Model):
                        value = value.pk  # Auto cast foreign keys to integer.
                    elif value:
                        value = long(value)
                    else:
                        return None
                return AnyUrlValue(type_prefix, value, self.url_type_registry)
        return None
Пример #3
0
    def to_python(self, value):
        if isinstance(value, AnyUrlValue):
            return value

        # Convert the string value
        if value is None:
            return None

        return AnyUrlValue.from_db_value(value, self._static_registry)
Пример #4
0
    def to_python(self, value):
        if isinstance(value, AnyUrlValue):
            return value

        # Convert the string value
        if value is None:
            return None

        return AnyUrlValue.from_db_value(value, self._static_registry)
Пример #5
0
    def resolve_objects(cls, objects, skip_cached_urls=False):
        """
        Make sure all AnyUrlValue objects from a set of objects is resolved in bulk.
        This avoids making a query per item.

        :param objects: A list or queryset of models.
        :param skip_cached_urls: Whether to avoid prefetching data that has it's URL cached.
        """
        # Allow the queryset or list to consist of multiple models.
        # This supports querysets from django-polymorphic too.
        queryset = list(objects)
        any_url_values = []

        for obj in queryset:
            model = obj.__class__
            for field in _any_url_fields_by_model[model]:
                any_url_value = getattr(obj, field)
                if any_url_value and any_url_value.url_type.has_id_value:
                    any_url_values.append(any_url_value)

        AnyUrlValue.resolve_values(any_url_values, skip_cached_urls=skip_cached_urls)
Пример #6
0
    def resolve_objects(cls, objects, skip_cached_urls=False):
        """
        Make sure all AnyUrlValue objects from a set of objects is resolved in bulk.
        This avoids making a query per item.

        :param objects: A list or queryset of models.
        :param skip_cached_urls: Whether to avoid prefetching data that has it's URL cached.
        """
        # Allow the queryset or list to consist of multiple models.
        # This supports querysets from django-polymorphic too.
        queryset = list(objects)
        any_url_values = []

        for obj in queryset:
            model = obj.__class__
            for field in _any_url_fields_by_model[model]:
                any_url_value = getattr(obj, field)
                if any_url_value and any_url_value.url_type.has_id_value:
                    any_url_values.append(any_url_value)

        AnyUrlValue.resolve_values(any_url_values,
                                   skip_cached_urls=skip_cached_urls)
Пример #7
0
 def from_db_value(self, value, expression, connection, context):
     # This method is used to cast DB values to python values.
     # The call to to_python() is not used anymore.
     if value is None:
         return None
     return AnyUrlValue.from_db_value(value, self._static_registry)
Пример #8
0
 def from_db_value(self, value, expression, connection, context=None):
     # This method is used to cast DB values to python values.
     # The call to to_python() is not used anymore.
     if value is None:
         return None
     return AnyUrlValue.from_db_value(value, self._static_registry)