default columns processor

packages/datalib/src/processPerspectiveDefaultColunns.ts

@@ -0,0 +1,71 @@
+import { findForeignKeyForColumn } from 'dbgate-tools';
+import { DatabaseInfo, TableInfo, ViewInfo } from 'dbgate-types';
+import { MultipleDatabaseInfo, PerspectiveConfig } from './PerspectiveConfig';
+
+function getPerspectiveDefaultColumns(
+  table: TableInfo | ViewInfo,
+  db: DatabaseInfo,
+  circularColumns: string[]
+): string[] {
+  const columns = table.columns.map(x => x.columnName);
+  const predicates = [
+    x => x.toLowerCase() == 'name',
+    x => x.toLowerCase() == 'title',
+    x => x.toLowerCase().includes('name'),
+    x => x.toLowerCase().includes('title'),
+    x => x.toLowerCase().includes('subject'),
+    // x => x.toLowerCase().includes('text'),
+    // x => x.toLowerCase().includes('desc'),
+    x =>
+      table.columns
+        .find(y => y.columnName == x)
+        ?.dataType?.toLowerCase()
+        ?.includes('char'),
+    x => findForeignKeyForColumn(table as TableInfo, x)?.columns?.length == 1 && !circularColumns.includes(x),
+    x => findForeignKeyForColumn(table as TableInfo, x)?.columns?.length == 1,
+  ];
+
+  for (const predicate of predicates) {
+    const col = columns.find(predicate);
+    if (col) return [col];
+  }
+
+  return [columns[0]];
+}
+
+export function processPerspectiveDefaultColunns(
+  config: PerspectiveConfig,
+  dbInfos: MultipleDatabaseInfo,
+  conid: string,
+  database: string
+) {
+  for (const node of config.nodes) {
+    if (node.defaultColumnsProcessed) continue;
+
+    const db = dbInfos?.[conid]?.[database];
+    if (!db) continue;
+
+    const table = db.tables.find(x => x.pureName == node.pureName && x.schemaName == node.schemaName);
+    const view = db.views.find(x => x.pureName == node.pureName && x.schemaName == node.schemaName);
+
+    if (table || view) {
+      const defaultColumns = getPerspectiveDefaultColumns(table || view, db, []);
+      const newConfig = {
+        ...config,
+        nodes: config.nodes.map(n =>
+          n.designerId == node.designerId
+            ? {
+                ...n,
+                defaultColumnsProcessed: true,
+                checkedColumns: defaultColumns,
+              }
+            : n
+        ),
+      };
+
+      return newConfig;
+    }
+  }
+
+  return null;
+}