From ebc01a59d48725f8015df753629a0e70a8bc1055 Mon Sep 17 00:00:00 2001
From: Pranav C <pranavxc@gmail.com>
Date: Wed, 22 Nov 2023 07:17:57 +0000
Subject: [PATCH] feat:  formula - pg - value function support

---
 packages/nc-gui/utils/formulaUtils.ts         | 10 ++++++++++
 packages/nocodb/src/db/functionMappings/pg.ts | 13 +++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/packages/nc-gui/utils/formulaUtils.ts b/packages/nc-gui/utils/formulaUtils.ts
index 0ece3b6bec..c216e47399 100644
--- a/packages/nc-gui/utils/formulaUtils.ts
+++ b/packages/nc-gui/utils/formulaUtils.ts
@@ -583,6 +583,16 @@ const formulas: Record<string, any> = {
     syntax: 'ROUNDUP()',
     examples: ['ROUNDUP()'],
   },
+  VALUE: {
+    validation: {
+      args: {
+        rqd: 1,
+      },
+    },
+    description: '',
+    syntax: 'VALUE()',
+    examples: ['VALUE()'],
+  },
 }
 
 const formulaList = Object.keys(formulas)
diff --git a/packages/nocodb/src/db/functionMappings/pg.ts b/packages/nocodb/src/db/functionMappings/pg.ts
index 13386176f5..7fea4f8ca7 100644
--- a/packages/nocodb/src/db/functionMappings/pg.ts
+++ b/packages/nocodb/src/db/functionMappings/pg.ts
@@ -283,6 +283,19 @@ const pg = {
       ),
     };
   },
+  VALUE: async ({ fn, knex, pt, colAlias }: MapFnArgs) => {
+    const value = (await fn(pt.arguments[0])).builder.toString();
+
+    return {
+      builder: knex.raw(
+        `ROUND(CASE 
+  WHEN ${value} IS NULL OR REGEXP_REPLACE(${value}::TEXT, '[^\\d.]+', '', 'g') IN ('.', '') OR LENGTH(REGEXP_REPLACE(${value}::TEXT, '[^.]+', '', 'g')) > 1 THEN NULL
+  WHEN LENGTH(REGEXP_REPLACE(${value}::TEXT, '[^%]', '','g')) > 0 THEN POW(-1, LENGTH(REGEXP_REPLACE(${value}::TEXT, '[^-]','', 'g'))) * (REGEXP_REPLACE(${value}::TEXT, '[^\\d.]+', '', 'g'))::NUMERIC / 100
+  ELSE POW(-1, LENGTH(REGEXP_REPLACE(${value}::TEXT, '[^-]', '', 'g'))) * (REGEXP_REPLACE(${value}::TEXT, '[^\\d.]+', '', 'g'))::NUMERIC
+END) ${colAlias}`,
+      ),
+    };
+  },
 };
 
 export default pg;