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Fix multiple fk issue with PostgreSQL migrations - #1010
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robbassi
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Jan 8, 2020
| refMap = Map.fromList $ foldl ref [] cols | ||
| where ref rs c = case cReference c of | ||
| Nothing -> rs | ||
| (Just r) -> (unDBName $ cName c, r) : rs |
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Here we build a map of column names to foreign keys, so we can pass that on to getColumn.
robbassi
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Jan 8, 2020
| ,"AND kcu.table_name=? " | ||
| ,"AND kcu.column_name=?"] | ||
| ,"AND kcu.column_name=? " | ||
| ,"AND tc.constraint_name=?"] |
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We now use the reference name to filter the query.
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Tests seem to be failing for |
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Looks like newer versions of the |
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Try merging master - there's an upper bound in place to prevent the cabal solver from picking that version. |
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This commit adds a (failing) test case for when multiple foreign key constraints exist on a single column.
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@parsonsmatt thanks! |
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Looks great to me. Thanks!
| , T.unpack (unDBName cname) | ||
| , " but got: " | ||
| , show xs | ||
| ] |
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❤️ great error message!
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This PR addresses issue #1009 for the PostgreSQL backend. In order to support multiple foreign keys on a single column, we now pass the reference name to
getColumn, and use it in the where clause when querying foreign keys for the column.Before submitting your PR, check that you've:
After submitting your PR: