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46 lines
2.0 KiB
46 lines
2.0 KiB
class BoundRelatedObject(object): |
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def __init__(self, related_object, field_mapping, original): |
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self.relation = related_object |
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self.field_mappings = field_mapping[related_object.name] |
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def template_name(self): |
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raise NotImplementedError |
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def __repr__(self): |
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return repr(self.__dict__) |
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class RelatedObject(object): |
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def __init__(self, parent_model, model, field): |
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self.parent_model = parent_model |
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self.model = model |
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self.opts = model._meta |
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self.field = field |
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self.name = '%s:%s' % (self.opts.app_label, self.opts.module_name) |
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self.var_name = self.opts.object_name.lower() |
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def get_db_prep_lookup(self, lookup_type, value): |
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# Defer to the actual field definition for db prep |
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return self.field.get_db_prep_lookup(lookup_type, value) |
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def editable_fields(self): |
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"Get the fields in this class that should be edited inline." |
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return [f for f in self.opts.fields + self.opts.many_to_many if f.editable and f != self.field] |
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def __repr__(self): |
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return "<RelatedObject: %s related to %s>" % (self.name, self.field.name) |
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def bind(self, field_mapping, original, bound_related_object_class=BoundRelatedObject): |
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return bound_related_object_class(self, field_mapping, original) |
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def get_accessor_name(self): |
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# This method encapsulates the logic that decides what name to give an |
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# accessor descriptor that retrieves related many-to-one or |
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# many-to-many objects. It uses the lower-cased object_name + "_set", |
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# but this can be overridden with the "related_name" option. |
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if self.field.rel.multiple: |
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# If this is a symmetrical m2m relation on self, there is no reverse accessor. |
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if getattr(self.field.rel, 'symmetrical', False) and self.model == self.parent_model: |
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return None |
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return self.field.rel.related_name or (self.opts.object_name.lower() + '_set') |
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else: |
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return self.field.rel.related_name or (self.opts.object_name.lower())
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