LIKE operator support

Author: Natsuke

src/index.js

@@ -68,6 +68,8 @@ function filterQuery(resourceConfig, params) {
           query = query.where(field, 'in', v);
         } else if (op === 'notIn') {
           query = query.whereNotIn(field, v);
+        } else if (op === 'like') {
+          query = query.where(field, 'like', v);
         } else if (op === '|==' || op === '|===') {
           query = query.orWhere(field, v);
         } else if (op === '|!=' || op === '|!==') {

test/findAll.spec.js

@@ -23,7 +23,7 @@ describe('DSSqlAdapter#findAll', function () {
   it('should filter users using the "in" operator', function () {
     var id;
 
-    adapter.findAll(User, {
+    return adapter.findAll(User, {
       where: {
         age: {
           'in': [30]
@@ -45,4 +45,33 @@ describe('DSSqlAdapter#findAll', function () {
       assert.isFalse(!!destroyedUser);
     });
   });
+  it('should filter users using the "like" operator', function () {
+    var id;
+
+    return adapter.findAll(User, {
+      where: {
+        name: {
+          'like': '%J%'
+        }
+      }
+    }).then(function (users) {
+      assert.equal(users.length, 0);
+      return adapter.create(User, { name: 'John' });
+    }).then(function (user) {
+      id = user.id;
+      return adapter.findAll(User, {
+        where: {
+          name: {
+            'like': '%J%'
+          }
+        }
+      });
+    }).then(function (users) {
+      assert.equal(users.length, 1);
+      assert.deepEqual(users[0], { id: id, name: 'John', age: null });
+      return adapter.destroy(User, id);
+    }).then(function (destroyedUser) {
+      assert.isFalse(!!destroyedUser);
+    });
+  });
 });