Displaying 1 result from an estimated 1 matches for "children_par".
2008 May 27
2
HABTM using two columns
...s how to create and use a has_and_belongs_to_many relationship
with a joining table where TWO columns are used to identify the
relation to TWO alternative tables.
Example:
table 1: mothers [mother_id, name]
table 2: fathers [father_id, name]
table 3: children [child_id, name]
joining table 4: children_parent [child_id, parent_id, parent_type]
''parent type'' can be either ''mother'' or ''father'', and depending on
this, the ''parent_id'' links to an entry in either the father or mother
table.
How do you define this in Rails and how do...