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definition:
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deleteEntryR :: EntityDescription a -> Column k1 -> Value k1
-> Column k2 -> Value k2 -> DBAction ()
deleteEntryR endescr keycol1 keyval1 keycol2 keyval2 =
deleteEntries endescr (Just (And [equal (colNum keycol1 0) keyval1,
equal (colNum keycol2 0) keyval2]))
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demand:
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no demanded arguments
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deterministic:
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deterministic operation
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documentation:
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--- Deletes an existing binary relation entry from the database.
--- @param endescr - the EntityDescription describing the entities to be deleted
--- @param keycol1 - the column containing the first key
--- @param keyval1 - the value of the first key to be deleted
--- @param keycol2 - the column containing the second key
--- @param keyval2 - the value of the second key to be deleted
--- @return a DB result without a value if everything went right, or an
--- error if something went wrong
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failfree:
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<FAILING>
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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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{(_,_,_,_,_) |-> _}
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name:
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deleteEntryR
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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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Database.CDBI.Description.EntityDescription a
-> Database.CDBI.Description.Column b -> Database.CDBI.Criteria.Value b
-> Database.CDBI.Description.Column c -> Database.CDBI.Criteria.Value c
-> Database.CDBI.Connection.DBAction ()
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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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possibly non-reducible on same data term
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