How to use _convert_value method in autotest

Best Python code snippet using autotest_python

lookups.py

Source:lookups.py

...39        return lookup_type, value40    def convert_value(self, value):41        if value is not None:42            if isinstance(value, (tuple, list)):43                value = [self._convert_value(val) for val in value if val is not None]44            else:45                value = self._convert_value(value)46        return value47    def _convert_value(self, value):48        return value49    def matches_filter(self, model, field_name, lookup_type, value):50        return self.model == model and lookup_type in self.lookup_types \51            and field_name == self.field_name52    @classmethod53    def matches_lookup_def(cls, lookup_def):54        if lookup_def in cls.lookup_types:55            return True56        return False57    def get_field_to_add(self, field_to_index):58        field_to_add = deepcopy(self.field_to_add)59        if isinstance(field_to_index, ListField):60            field_to_add = ListField(field_to_add, editable=False, null=True)61        return field_to_add62class DateLookup(ExtraFieldLookup):63    # DateLookup is abstract so set lookup_types to None so it doesn't match64    lookup_types = None65    def __init__(self, *args, **kwargs):66        defaults = {'new_lookup': 'exact',67                    'field_to_add': models.IntegerField(editable=False, null=True)}68        defaults.update(kwargs)69        ExtraFieldLookup.__init__(self, *args, **defaults)70    def _convert_lookup(self, value, lookup_type):71        return self.new_lookup, value72class Day(DateLookup):73    lookup_types = 'day'74    def _convert_value(self, value):75        return value.day76class Month(DateLookup):77    lookup_types = 'month'78    def _convert_value(self, value):79        return value.month80class Year(DateLookup):81    lookup_types = 'year'82    def _convert_value(self, value):83        return value.year84class Weekday(DateLookup):85    lookup_types = 'week_day'86    def _convert_value(self, value):87        return value.isoweekday()88class Contains(ExtraFieldLookup):89    lookup_types = 'contains'90    def __init__(self, *args, **kwargs):91        defaults = {'new_lookup': 'startswith',92                    'field_to_add': ListField(models.CharField(500),93                                              editable=False, null=True)94        }95        defaults.update(kwargs)96        ExtraFieldLookup.__init__(self, *args, **defaults)97    def get_field_to_add(self, field_to_index):98        # always return a ListField of CharFields even in the case of99        # field_to_index being a ListField itself!100        return deepcopy(self.field_to_add)101    def convert_value(self, value):102        new_value = []103        if isinstance(value, (tuple, list)):104            for val in value:105                new_value.extend(self.contains_indexer(val))106        else:107            new_value = self.contains_indexer(value)108        return new_value109    def _convert_lookup(self, value, lookup_type):110        return self.new_lookup, value111    def contains_indexer(self, value):112        # In indexing mode we add all postfixes ('o', 'lo', ..., 'hello')113        result = []114        if value:115            result.extend([value[count:] for count in range(len(value))])116        return result117class Icontains(Contains):118    lookup_types = 'icontains'119    def convert_value(self, value):120        return [val.lower() for val in Contains.convert_value(self, value)]121    def _convert_lookup(self, value, lookup_type):122        return self.new_lookup, value.lower()123class Iexact(ExtraFieldLookup):124    lookup_types = 'iexact'125    def _convert_lookup(self, value, lookup_type):126        return self.new_lookup, value.lower()127    def _convert_value(self, value):128        return value.lower()129class Istartswith(ExtraFieldLookup):130    lookup_types = 'istartswith'131    def __init__(self, *args, **kwargs):132        defaults = {'new_lookup': 'startswith'}133        defaults.update(kwargs)134        ExtraFieldLookup.__init__(self, *args, **defaults)135    def _convert_lookup(self, value, lookup_type):136        return self.new_lookup, value.lower()137    def _convert_value(self, value):138        return value.lower()139class Endswith(ExtraFieldLookup):140    lookup_types = 'endswith'141    def __init__(self, *args, **kwargs):142        defaults = {'new_lookup': 'startswith'}143        defaults.update(kwargs)144        ExtraFieldLookup.__init__(self, *args, **defaults)145    def _convert_lookup(self, value, lookup_type):146        return self.new_lookup, value[::-1]147    def _convert_value(self, value):148        return value[::-1]149class Iendswith(Endswith):150    lookup_types = 'iendswith'151    def _convert_lookup(self, value, lookup_type):152        return self.new_lookup, value[::-1].lower()153    def _convert_value(self, value):154        return value[::-1].lower()155class RegexLookup(ExtraFieldLookup):156    lookup_types = ('regex', 'iregex')157    def __init__(self, *args, **kwargs):158        defaults = {'field_to_add': models.NullBooleanField(editable=False,159                                                            null=True)160        }161        defaults.update(kwargs)162        ExtraFieldLookup.__init__(self, *args, **defaults)163    def contribute(self, model, field_name, lookup_def):164        ExtraFieldLookup.contribute(self, model, field_name, lookup_def)165        if isinstance(lookup_def, regex):166            self.lookup_def = re.compile(lookup_def.pattern, re.S | re.U |167                                         (lookup_def.flags & re.I))168    @property169    def index_name(self):170        return 'idxf_%s_l_%s' % (self.field_name,171                                 self.lookup_def.pattern.encode('hex'))172    def is_icase(self):173        return self.lookup_def.flags & re.I174    def _convert_lookup(self, value, lookup_type):175        return self.new_lookup, True176    def _convert_value(self, value):177        if self.lookup_def.match(value):178            return True179        return False180    def matches_filter(self, model, field_name, lookup_type, value):181        return self.model == model and lookup_type == \182                '%sregex' % ('i' if self.is_icase() else '') and \183                value == self.lookup_def.pattern and field_name == self.field_name184    @classmethod185    def matches_lookup_def(cls, lookup_def):186        if isinstance(lookup_def, regex):187            return True188        return False189class StandardLookup(ExtraFieldLookup):190    ''' Creates a copy of the field_to_index in order to allow querying for...

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