Rails 3.1.3
Say, I have tables, Video and Script. Their association is
Video:1 --- n:Script
Also, Script has a field called ''value'', (which is decimal,
but the type
is not important here).
I want every ''value'' to be unique for EACH Video. In other
words,
Video1 : script-value=1, script-value=2, script-value=4 ...
is OK. But NOT
Video1 : script-value=2, script-value=2, script-value=4 ...
If I set '':value, uniqueness => true'' in Script.rb, a
critical problem
occurs.
script-value s are unique for EACH Video, but they are not for all
Videos.
Video1 : script-value:1, script-value:2, script-value:4 ...
Video2 : script-value:1, script-value:7, script-value:9 ...
...
Video1 and Video2 has the same script-values (=1), from which
''uniqueness => true'' setting prevents.
Is there anyway to allow Videos to have the same ''value''s,
which however
are distinct from each other among the values that a single Video
possesses?
soichi
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