README.md

ihp-table-without-primary-key-error

1. ihp-new ihp-table-without-primary-key-error
2. cd ihp-table-without-primary-key-error
3. ./start
4. Open http://localhost:8001/ and create the table first, and keep the id column that's added automatically.
5. Create the table second, and keep the id column for now
6. Create a column second.first_id and have it reference first.id
7. Remove the second.id column and see the error appear in the console:

build/Generated/Types.hs:43:87: error:
    Not in scope: type constructor or class ‘Second’
    Perhaps you meant ‘Record’ (imported from IHP.ModelSupport)
   |
43 |         pure $ First id (QueryBuilder.filterWhere (#firstId, id) (QueryBuilder.query @Second)) def
   |                                                                                       ^^^^^^

build/Generated/Types.hs:56:58: error:
    Not in scope: type constructor or class ‘Second’
    Perhaps you meant one of these:
      type variable ‘second’ (line 56),
      ‘Record’ (imported from IHP.ModelSupport)
   |
56 | type instance Include "second" (First' second) = First' [Second]
   |                                                          ^^^^^^
Failed, three modules loaded.