Part of lp.services.fields View In Hierarchy
Known subclasses: lp.code.browser.gitrepository.GitRulePatternField, lp.registry.interfaces.distroseries.DistroSeriesVersionField, lp.services.fields.ContentNameField
Method | unchanged | Return True if the attribute on the object is unchanged. |
Method | _content_iface | Return the content interface. |
Method | _getByAttribute | Return the content object with the given attribute. |
Method | _isValueTaken | Returns true if and only if the specified value is already taken. |
Method | _validate | Raise a LaunchpadValidationError if the attribute is not available. |
Override this in subclasses.
Override this in subclasses.
A attribute is not available if it's already in use by another object of this same context. The 'input' should be valid as per TextLine.