Allow qualified local columns names if joined relations has same column name

Author: techniq

src/index.js

@@ -64,14 +64,18 @@ function filterQuery (resourceConfig, params) {
 
             if (!joinedTables.some(t => t === relationPath.join('.'))) {
               let [relation] = localResourceConfig.relationList.filter(r => r.relation === relationName)
-              let table = getTable(localResourceConfig)
-              let localId = `${table}.${relation.localKey}`
+              if (relation) {
+                let table = getTable(localResourceConfig)
+                let localId = `${table}.${relation.localKey}`
 
-              let relationTable = getTable(relationResourceConfig)
-              let foreignId = `${relationTable}.${relationResourceConfig.idAttribute}`
+                let relationTable = getTable(relationResourceConfig)
+                let foreignId = `${relationTable}.${relationResourceConfig.idAttribute}`
 
-              query = query.join(relationTable, localId, foreignId)
-              joinedTables.push(relationPath.join('.'))
+                query = query.join(relationTable, localId, foreignId)
+                joinedTables.push(relationPath.join('.'))
+              } else {
+                // local column
+              }
             }
             localResourceConfig = relationResourceConfig
           }

test/findAll.spec.js

@@ -182,4 +182,14 @@ describe('DSSqlAdapter#findAll', function () {
     assert.isUndefined(users[0].email);
   });
 
+  it('should filter when relations have same column if column is qualified', function* () {
+    var profile1 = yield adapter.create(Profile, { email: '[email protected]' });
+    var user1 = yield adapter.create(User, {name: 'John', profileId: profile1.id});
+
+    // `id` column must be qualified with `user.`
+    var users = yield adapter.findAll(User, {'user.id': user1.id, 'profile.email': '[email protected]'});
+    assert.equal(users.length, 1);
+    assert.equal(users[0].profileId, profile1.id);
+  });
+
 });