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refactor: wrap proc logic in asJsonF

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* add explicit logic for returning setof scalars
This commit is contained in:
steve-chavez
2023-04-04 19:55:10 -05:00
committed by Steve Chavez
parent d945e8c06a
commit 16f2849724
7 changed files with 41 additions and 30 deletions
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src/PostgREST/Query/SqlFragment.hs
+7 -5
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@@ -178,16 +178,18 @@ asCsvF = asCsvHeaderF <> " || '\n' || " <> asCsvBodyF
")"
asCsvBodyF = "coalesce(string_agg(substring(_postgrest_t::text, 2, length(_postgrest_t::text) - 2), '\n'), '')"
asJsonF :: Bool -> SqlFragment
asJsonF returnsScalar
| returnsScalar = "coalesce(json_agg(_postgrest_t.pgrst_scalar), '[]')"
| otherwise = "coalesce(json_agg(_postgrest_t), '[]')"
asJsonSingleF :: Bool -> SqlFragment
asJsonSingleF returnsScalar
| returnsScalar = "coalesce(json_agg(_postgrest_t.pgrst_scalar)->0, 'null')"
| otherwise = "coalesce(json_agg(_postgrest_t)->0, 'null')"
asJsonF :: Bool -> Bool -> Bool -> SqlFragment
asJsonF returnsScalar returnsSetOfScalar returnsSingleComposite
| returnsSingleComposite = "coalesce(json_agg(_postgrest_t)->0, 'null')"
| returnsScalar = "coalesce(json_agg(_postgrest_t.pgrst_scalar)->0, 'null')"
| returnsSetOfScalar = "coalesce(json_agg(_postgrest_t.pgrst_scalar), '[]')"
| otherwise = "coalesce(json_agg(_postgrest_t), '[]')"
asXmlF :: FieldName -> SqlFragment
asXmlF fieldName = "coalesce(xmlagg(_postgrest_t." <> pgFmtIdent fieldName <> "), '')"