fix: mark a property generated if it is STORED or VIRTUAL

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

Author: aaqilniz

lib/discovery.js

@@ -166,7 +166,14 @@ function mixinDiscovery(MySQL, mysql) {
         ' numeric_scale AS "dataScale",' +
         ' column_type AS "columnType",' +
         ' is_nullable = \'YES\' AS "nullable",' +
-        ' CASE WHEN extra LIKE \'%auto_increment%\' THEN 1 ELSE 0 END AS "generated"' +
+        `
+          case
+            when extra like '%virtual%' then 1
+            when extra like '%stored%' then 1
+            when extra LIKE '%auto_increment%' THEN 1
+            else 0
+          end as "generated"
+        ` +
         ' FROM information_schema.columns' +
         ' WHERE table_schema=' + mysql.escape(schema) +
         (table ? ' AND table_name=' + mysql.escape(table) : ''),
@@ -181,7 +188,16 @@ function mixinDiscovery(MySQL, mysql) {
         ' numeric_scale AS "dataScale",' +
         ' column_type AS "columnType",' +
         ' is_nullable = \'YES\' AS "nullable",' +
-        ' CASE WHEN extra LIKE \'%auto_increment%\' THEN 1 ELSE 0 END AS "generated"' +
+        `
+          case
+            when extra LIKE '%GENERATED ALWAYS%' AND extra LIKE '%VIRTUAL%' THEN 1
+            when extra LIKE '%GENERATED ALWAYS%' AND extra LIKE '%STORED%' THEN 1
+            when extra LIKE '%VIRTUAL%' THEN 1
+            when extra LIKE '%STORED%' THEN 1
+            when extra LIKE '%AUTO_INCREMENT%' THEN 1
+            else 0
+          end as "generated"
+        ` +
         ' FROM information_schema.columns' +
         (table ? ' WHERE table_name=' + mysql.escape(table) : ''),
       'table_name, ordinal_position', {});

test/mysql.discover.test.js

@@ -251,6 +251,30 @@ describe('Discover model generated columns', function() {
       done();
     });
   });
+  it('should mark STORED column as generated', function(done) {
+    db.discoverModelProperties('testgen', function(err, models) {
+      if (err) return done(err);
+      models.forEach(function(model) {
+        assert(model.tableName.toLowerCase() === 'testgen');
+        if (model.columnName === 'TOKEN') {
+          assert(model.generated, 'STRONGLOOP.TESTGEN.TOKEN should be a generated (identity) column');
+        }
+      });
+      done();
+    });
+  });
+  it('should mark VIRTUAL column as generated', function(done) {
+    db.discoverModelProperties('testgen', function(err, models) {
+      if (err) return done(err);
+      models.forEach(function(model) {
+        assert(model.tableName.toLowerCase() === 'testgen');
+        if (model.columnName === 'VIRTUAL_TOKEN') {
+          assert(model.generated, 'STRONGLOOP.TESTGEN.VIRTUAL_TOKEN should be a generated (identity) column');
+        }
+      });
+      done();
+    });
+  });
 });
 
 describe('Discover LDL schema from a table', function() {

test/schema.sql

@@ -219,8 +219,10 @@ DROP TABLE IF EXISTS `TESTGEN`;
 CREATE TABLE `TESTGEN` (
   `ID` int(11) NOT NULL  AUTO_INCREMENT,
   `NAME` varchar(64) DEFAULT NULL,
+  `TOKEN` CHAR(32) GENERATED ALWAYS AS (MD5(NAME)) STORED,
+  `VIRTUAL_TOKEN` CHAR(32) GENERATED ALWAYS AS (MD5(NAME)) VIRTUAL,
   PRIMARY KEY (`ID`)
-) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 /*!40101 SET character_set_client = @saved_cs_client */;
 
 --