feat(database): improve text field

packages/core/database/src/__tests__/fields/text-field.test.ts

@@ -0,0 +1,47 @@
+import { mockDatabase } from '../';
+import { Database } from '../../database';
+
+describe('text field', () => {
+  let db: Database;
+
+  beforeEach(async () => {
+    db = mockDatabase();
+    await db.clean({ drop: true });
+  });
+
+  afterEach(async () => {
+    await db.close();
+  });
+
+  it('should create text field type', async () => {
+    const Test = db.collection({
+      name: 'tests',
+      fields: [
+        {
+          type: 'text',
+          name: 'text1',
+          defaultValue: 'a',
+        },
+        {
+          type: 'text',
+          name: 'text2',
+          length: 'tiny',
+          defaultValue: 'a',
+        },
+        {
+          type: 'text',
+          name: 'text3',
+          length: 'medium',
+          defaultValue: 'a',
+        },
+        {
+          type: 'text',
+          name: 'text4',
+          length: 'long',
+          defaultValue: 'a',
+        },
+      ],
+    });
+    await Test.sync();
+  });
+});

packages/core/database/src/fields/text-field.ts

@@ -3,10 +3,20 @@ import { BaseColumnFieldOptions, Field } from './field';
 
 export class TextField extends Field {
   get dataType() {
+    if (this.database.inDialect('mysql', 'mariadb') && this.options.length) {
+      return DataTypes.TEXT(this.options.length);
+    }
     return DataTypes.TEXT;
   }
+
+  init() {
+    if (this.database.inDialect('mysql', 'mariadb')) {
+      this.options.defaultValue = null;
+    }
+  }
 }
 
 export interface TextFieldOptions extends BaseColumnFieldOptions {
   type: 'text';
+  length?: 'tiny' | 'medium' | 'long';
 }