CurryInfo: ertools-3.0.0 / Database.ERD.Goodies.hasForeignKey
definition: 
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hasForeignKey :: String -> Entity -> Bool
hasForeignKey ename (Entity _ attrs) = any isForeignKeyWithName attrs
where
isForeignKeyWithName (Attribute _ d _ _) = case d of KeyDom n -> n==ename
_ -> False
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demand:
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argument 2 |
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deterministic:
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deterministic operation |
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documentation:
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Has the entity an attribute with a foreign key for a given entity name? |
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failfree:
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(_, _) |
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indeterministic:
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referentially transparent operation |
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infix:
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no fixity defined |
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iotype:
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{(_,{Entity}) |-> _}
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name:
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hasForeignKey |
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precedence:
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no precedence defined |
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result-values:
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_ |
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signature:
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String -> Database.ERD.Entity -> Prelude.Bool |
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solution-complete:
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operation might suspend on free variables |
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terminating:
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possibly non-terminating |
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totally-defined:
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reducible on all ground data terms |