class ContainedBy(PostgresOperatorLookup):
Known subclasses: django.contrib.postgres.fields.array.ArrayContainedBy
Undocumented
| Class Variable | lookup_name |
Undocumented |
| Class Variable | postgres_operator |
Undocumented |
Inherited from PostgresOperatorLookup:
| Method | as_postgresql |
Undocumented |
Inherited from FieldGetDbPrepValueMixin (via PostgresOperatorLookup):
| Method | get_db_prep_lookup |
Undocumented |
| Class Variable | get_db_prep_lookup_value_is_iterable |
Undocumented |
Inherited from Lookup (via PostgresOperatorLookup):
| Method | __eq__ |
Undocumented |
| Method | __hash__ |
Undocumented |
| Method | __init__ |
Undocumented |
| Method | __repr__ |
Undocumented |
| Method | apply_bilateral_transforms |
Undocumented |
| Method | as_oracle |
Undocumented |
| Method | batch_process_rhs |
Undocumented |
| Method | get_db_prep_lookup |
Undocumented |
| Method | get_group_by_cols |
Undocumented |
| Method | get_prep_lhs |
Undocumented |
| Method | get_prep_lookup |
Undocumented |
| Method | get_source_expressions |
Undocumented |
| Method | process_lhs |
Undocumented |
| Method | process_rhs |
Undocumented |
| Method | resolve_expression |
Provide the chance to do any preprocessing or validation before being added to the query. |
| Method | rhs_is_direct_value |
Undocumented |
| Method | select_format |
Custom format for select clauses. For example, EXISTS expressions need to be wrapped in CASE WHEN on Oracle. |
| Method | set_source_expressions |
Undocumented |
| Class Variable | can_use_none_as_rhs |
Undocumented |
| Class Variable | prepare_rhs |
Undocumented |
| Instance Variable | bilateral_transforms |
Undocumented |
| Instance Variable | lhs |
Undocumented |
| Instance Variable | rhs |
Undocumented |
| Property | identity |
Undocumented |
| Property | output_field |
Return the output type of this expressions. |
Inherited from BaseExpression (via PostgresOperatorLookup, Lookup, Expression):
| Static Method | _convert_value_noop |
Undocumented |
| Method | __getstate__ |
Undocumented |
| Method | _parse_expressions |
Undocumented |
| Method | _resolve_output_field |
Attempt to infer the output type of the expression. If the output fields of all source fields match then, simply infer the same type here. This isn't always correct, but it makes sense most of the time. |
| Method | as_sql |
Responsible for returning a (sql, [params]) tuple to be included in the current query. |
| Method | asc |
Undocumented |
| Method | copy |
Undocumented |
| Method | desc |
Undocumented |
| Method | flatten |
Recursively yield this expression and all subexpressions, in depth-first order. |
| Method | get_db_converters |
Undocumented |
| Method | get_lookup |
Undocumented |
| Method | get_source_fields |
Return the underlying field types used by this aggregate. |
| Method | get_transform |
Undocumented |
| Method | relabeled_clone |
Undocumented |
| Method | reverse_ordering |
Undocumented |
| Class Variable | _output_field_resolved_to_none |
Undocumented |
| Class Variable | filterable |
Undocumented |
| Class Variable | is_summary |
Undocumented |
| Class Variable | window_compatible |
Undocumented |
| Property | _output_field_or_none |
Return the output field of this expression, or None if _resolve_output_field() didn't return an output type. |
| Property | conditional |
Undocumented |
| Property | contains_aggregate |
Undocumented |
| Property | contains_column_references |
Undocumented |
| Property | contains_over_clause |
Undocumented |
| Property | convert_value |
Expressions provide their own converters because users have the option of manually specifying the output_field which may be a different type from the one the database returns. |
| Property | field |
Undocumented |
Inherited from Combinable (via PostgresOperatorLookup, Lookup, Expression):
| Constant | ADD |
Undocumented |
| Constant | BITAND |
Undocumented |
| Constant | BITLEFTSHIFT |
Undocumented |
| Constant | BITOR |
Undocumented |
| Constant | BITRIGHTSHIFT |
Undocumented |
| Constant | BITXOR |
Undocumented |
| Constant | DIV |
Undocumented |
| Constant | MOD |
Undocumented |
| Constant | MUL |
Undocumented |
| Constant | POW |
Undocumented |
| Constant | SUB |
Undocumented |
| Method | __add__ |
Undocumented |
| Method | __and__ |
Undocumented |
| Method | __mod__ |
Undocumented |
| Method | __mul__ |
Undocumented |
| Method | __neg__ |
Undocumented |
| Method | __or__ |
Undocumented |
| Method | __pow__ |
Undocumented |
| Method | __radd__ |
Undocumented |
| Method | __rand__ |
Undocumented |
| Method | __rmod__ |
Undocumented |
| Method | __rmul__ |
Undocumented |
| Method | __ror__ |
Undocumented |
| Method | __rpow__ |
Undocumented |
| Method | __rsub__ |
Undocumented |
| Method | __rtruediv__ |
Undocumented |
| Method | __sub__ |
Undocumented |
| Method | __truediv__ |
Undocumented |
| Method | _combine |
Undocumented |
| Method | bitand |
Undocumented |
| Method | bitleftshift |
Undocumented |
| Method | bitor |
Undocumented |
| Method | bitrightshift |
Undocumented |
| Method | bitxor |
Undocumented |