fix: add values to enum type

Signed-off-by: Muhammad Aaqil <aaqilcs102@gmail.com>

lib/migration.js

@@ -764,10 +764,12 @@ function mixinMigration(MySQL, mysql) {
     const colLength = columnMetadata && columnMetadata.dataLength || prop.length || prop.limit;
     const colPrecision = columnMetadata && columnMetadata.dataPrecision;
     const colScale = columnMetadata && columnMetadata.dataScale;
+    const colValue = columnMetadata && columnMetadata.value;
     // info on setting column specific properties
     // i.e dataLength, dataPrecision, dataScale
     // https://loopback.io/doc/en/lb3/Model-definition-JSON-file.html
     if (colType) {
+      if (colValue) return colType + '(' + colValue + ')';
       if (colLength) return colType + '(' + colLength + ')';
       if (colPrecision && colScale) return colType + '(' + colPrecision + ',' + colScale + ')';
       if (colPrecision) return colType + '(' + colPrecision + ')';

test/migration.test.js

@@ -10,7 +10,7 @@ const platform = require('./helpers/platform');
 const should = require('./init');
 const Schema = require('loopback-datasource-juggler').Schema;
 
-let db, UserData, StringData, NumberData, DateData, DefaultData, SimpleEmployee;
+let db, UserData, StringData, NumberData, DateData, DefaultData, SimpleEmployee, SimplePatient;
 let mysqlVersion;
 
 describe('migrations', function() {
@@ -32,6 +32,18 @@ describe('migrations', function() {
     });
   });
 
+  it('Migrating models that has enum', function(done) {
+    query('describe SimplePatient', function(err, result) {
+      should.not.exist(err);
+      should.exist(result);
+      result[0].Key.should.equal('PRI');
+      result[0].Type.should.equal('bigint');
+      result[2].Field.should.equal('type');
+      result[2].Type.should.equal('enum(\'INPATIENT\',\'OUTPATIENT\')');
+      done();
+    });
+  });
+
   it('UserData should have correct columns', function(done) {
     getFields('UserData', function(err, fields) {
       if (!fields) return done();
@@ -603,6 +615,23 @@ function setup(done) {
     name: {type: String},
   });
 
+  SimplePatient = db.define('SimplePatient', {
+    pid: {type: Number, generated: true, id: true, mysql: {dataType: 'bigint', dataLength: 20}},
+    name: {type: String},
+    patient: {
+      type: String,
+      mysql: {
+        columnName: 'type',
+        dataType: 'enum',
+        value: "'INPATIENT','OUTPATIENT'",
+        dataPrecision: null,
+        dataScale: null,
+        nullable: 'Y',
+        generated: false,
+      },
+    },
+  });
+
   query('SELECT VERSION()', function(err, res) {
     mysqlVersion = res && res[0] && res[0]['VERSION()'];
     blankDatabase(db, done);