Merge pull request #7434 from nocodb/nc-fix/mm-delete

fix: mm table deletion

packages/nocodb/src/db/sql-client/lib/pg/PgClient.ts

@@ -965,28 +965,13 @@ class PGClient extends KnexClient {
       f.attnotnull as rqd,
       p.contype as cst,
       p.conname as cstn,
+      ix.indisprimary as primarykey,
+      not ix.indisunique as non_unique_original,
+      not ix.indisunique as non_unique,
       CASE
           WHEN i.oid<>0 THEN true
           ELSE false
       END AS is_index,
-      CASE
-          WHEN p.contype = 'p' THEN true
-          ELSE false
-      END AS primarykey,
-      CASE
-          WHEN p.contype = 'u' THEN 0
-      WHEN p.contype = 'p' THEN 0
-          ELSE 1
-      END AS non_unique_original,
-      CASE
-          WHEN p.contype = 'p' THEN true
-          ELSE false
-      END AS primarykey,
-      CASE
-          WHEN p.contype = 'u' THEN 0
-      WHEN p.contype = 'p' THEN 0
-          ELSE 1
-      END AS non_unique,
       CASE
           WHEN f.atthasdef = 't' THEN pg_get_expr(d.adbin, d.adrelid)
       END AS default  FROM pg_attribute f

packages/nocodb/src/services/columns.service.ts

@@ -2059,6 +2059,7 @@ export class ColumnsService {
       req?: any;
       columnId: string;
       user: UserType;
+      forceDeleteSystem?: boolean;
       reuse?: ReusableParams;
     },
     ncMeta = this.metaService,
@@ -2067,7 +2068,7 @@ export class ColumnsService {
 
     const column = await Column.get({ colId: param.columnId }, ncMeta);
 
-    if (column.system) {
+    if (column.system && !param.forceDeleteSystem) {
       NcError.badRequest(
         `The column '${
           column.title || column.column_name
@@ -2178,9 +2179,11 @@ export class ColumnsService {
                     colOpt.type === 'mm' &&
                     colOpt.fk_parent_column_id === childColumn.id &&
                     colOpt.fk_child_column_id === parentColumn.id &&
-                    colOpt.fk_mm_model_id === mmTable.id &&
+                    colOpt.fk_mm_model_id === relationColOpt.fk_mm_model_id &&
-                    colOpt.fk_mm_parent_column_id === mmChildCol.id &&
+                    colOpt.fk_mm_parent_column_id ===
-                    colOpt.fk_mm_child_column_id === mmParentCol.id
+                      relationColOpt.fk_mm_child_column_id &&
+                    colOpt.fk_mm_child_column_id ===
+                      relationColOpt.fk_mm_parent_column_id
                   ) {
                     await Column.delete(c.id, ncMeta);
                     break;
@@ -2189,6 +2192,7 @@ export class ColumnsService {
 
                 await Column.delete(relationColOpt.fk_column_id, ncMeta);
 
+                if (mmTable) {
                   // delete bt columns in m2m table
                   await mmTable.getColumns(ncMeta);
                   for (const c of mmTable.columns) {
@@ -2199,6 +2203,7 @@ export class ColumnsService {
                       await Column.delete(c.id, ncMeta);
                     }
                   }
+                }
 
                 // delete hm columns in parent table
                 await parentTable.getColumns(ncMeta);
@@ -2206,7 +2211,9 @@ export class ColumnsService {
                   if (!isLinksOrLTAR(c.uidt)) continue;
                   const colOpt =
                     await c.getColOptions<LinkToAnotherRecordColumn>(ncMeta);
-                  if (colOpt.fk_related_model_id === mmTable.id) {
+                  if (
+                    colOpt.fk_related_model_id === relationColOpt.fk_mm_model_id
+                  ) {
                     await Column.delete(c.id, ncMeta);
                   }
                 }
@@ -2217,11 +2224,14 @@ export class ColumnsService {
                   if (!isLinksOrLTAR(c.uidt)) continue;
                   const colOpt =
                     await c.getColOptions<LinkToAnotherRecordColumn>(ncMeta);
-                  if (colOpt.fk_related_model_id === mmTable.id) {
+                  if (
+                    colOpt.fk_related_model_id === relationColOpt.fk_mm_model_id
+                  ) {
                     await Column.delete(c.id, ncMeta);
                   }
                 }
 
+                if (mmTable) {
                   // retrieve columns in m2m table again
                   await mmTable.getColumns(ncMeta);
 
@@ -2233,6 +2243,7 @@ export class ColumnsService {
                     await mmTable.delete(ncMeta);
                   }
                 }
+              }
               break;
           }
         }
@@ -2340,6 +2351,7 @@ export class ColumnsService {
     },
     ignoreFkDelete = false,
   ) => {
+    if (childTable) {
       let foreignKeyName;
 
       // if relationColOpt is not provided, extract it from child table
@@ -2378,6 +2390,7 @@ export class ColumnsService {
           console.log(e.message);
         }
       }
+    }
 
     if (!relationColOpt) return;
     const columnsInRelatedTable: Column[] = await relationColOpt
@@ -2424,7 +2437,7 @@ export class ColumnsService {
             ...index,
             tn: cTable.table_name,
             columns: [childColumn.column_name],
-            indexName: index.index_name,
+            indexName: index.key_name,
           });
         }
       }

packages/nocodb/src/services/tables.service.ts

@@ -202,7 +202,7 @@ export class TablesService {
       // delete all relations
       for (const c of relationColumns) {
         // skip if column is hasmany relation to mm table
-        if (c.system) {
+        if (c.system && !table.mm) {
           continue;
         }
 
@@ -216,6 +216,7 @@ export class TablesService {
             req: param.req,
             columnId: c.id,
             user: param.user,
+            forceDeleteSystem: true,
           },
           ncMeta,
         );