Hi,
Following on the documentation (
http://docs.sqlalchemy.org/en/latest/orm/collections.html?highlight=collection_class#dictionary-collections
)
I seem to understand that attribute_mapped_should verify that the key used
is the same as the mapped attribute. And it does, but only in this case:
item = Item()
item.notes = {
'*CCC*': Note('AAA', 'atext'),
}
TypeError: Found incompatible key 'CCC' for value Note(id=None,
item_id=None, keyword=AAA, text=atext); this collection's keying
function requires a key of 'AAA' for this value.
This fails as expected, but the following does not:
item = Item()
item.notes['ccc'] = Note('aaa', 'atext')
print item.notes
{'ccc': Note(id=None, item_id=None, keyword=aaa, text=atext)}
item = Item()
item.notes.update({'ccc': Note('aaa', 'atext')})
print item.notes
{'ccc': Note(id=None, item_id=None, keyword=aaa, text=atext)}
I am thinking in implementing a custom collection class just to detect
those errors.
Am I missing something?
Thanks in advance :)
Pau.
--
----------------------------------
Pau Tallada Crespí
Dep. d'Astrofísica i Cosmologia
Port d'Informació Científica (PIC)
Tel: +34 93 586 8233
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