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ryszard.szopa authored
New slots in DB-CLASS-SLOT-DEFINITION: * FOREIGN: whether there should be a foreign key constraint with the column representing this slot * UNIQUE: whether there should be a unique constraint for this key * ON-DELETE: action to be taken on deletion of the referenced row. Relevant only if foreign is T. * DELAYED-CONSTRAINT: place to store a closure adding a foreign key constraint if it is not possible to add it now (when the referenced table doesn't yet exist New slots in DB-CLASS: * FOREIGN-KEYS list of slots that are foreign keys * UNFINISHED-CLASSES: class allocated. Instances for which there are constraints that should be applied. darcs-hash:e508359b4611f21281428873fe188d6e3aad565c
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