Implement where arg on scoped count and destroyAll

lib/scope.js

@@ -252,14 +252,18 @@ function defineScope(cls, targetClass, name, params, methods, options) {
    - For every destroy call which results in an error
    - If fetching the Elements on which destroyAll is called results in an error
    */
-  function destroyAll(cb) {
-    var where = (this._scope && this._scope.where) || {};
-    targetClass.destroyAll(where, cb);
+  function destroyAll(where, cb) {
+    if (typeof where === 'function') cb = where, where = {};
+    var scoped = (this._scope && this._scope.where) || {};
+    var filter = mergeQuery({ where: scoped }, { where: where || {} });
+    targetClass.destroyAll(filter.where, cb);
   }
 
-  function count(cb) {
-    var where = (this._scope && this._scope.where) || {};
-    targetClass.count(where, cb);
+  function count(where, cb) {
+    if (typeof where === 'function') cb = where, where = {};
+    var scoped = (this._scope && this._scope.where) || {};
+    var filter = mergeQuery({ where: scoped }, { where: where || {} });
+    targetClass.count(filter.where, cb);
   } 
   
   return definition;
@@ -321,4 +325,3 @@ function mergeQuery(base, update) {
   }
   return base;
 }
-

test/relations.test.js

@@ -120,6 +120,30 @@ describe('relations', function () {
       }
     });
     
+    it('should count scoped records - all and filtered', function (done) {
+      Book.create(function (err, book) {
+        book.chapters.create({name: 'a'}, function (err, ch) {
+          book.chapters.create({name: 'b'}, function () {
+            book.chapters.create({name: 'c'}, function () {
+              verify(book);
+            });
+          });
+        });
+      });
+
+      function verify(book) {
+        book.chapters.count(function (err, count) {
+          should.not.exist(err);
+          count.should.equal(3);
+          book.chapters.count({ name: 'b' }, function (err, count) {
+            should.not.exist(err);
+            count.should.equal(1);
+            done();
+          });
+        });
+      }
+    });
+
     it('should set targetClass on scope property', function() {
       should.equal(Book.prototype.chapters._targetClass, 'Chapter');
     });

test/scope.test.js

@@ -75,6 +75,7 @@ describe('scope', function () {
       });
     });
   });
+  
 });
 
 describe('scope - order', function () {
@@ -130,3 +131,101 @@ describe('scope - order', function () {
   
 });
 
+describe('scope - filtered count and destroyAll', function () {
+
+  before(function () {
+    db = getSchema();
+    Station = db.define('Station', {
+      name: {type: String, index: true},
+      order: {type: Number, index: true},
+      active: {type: Boolean, index: true, default: true}
+    });
+    Station.scope('ordered', {order: 'order'});
+    Station.scope('active', {where: { active: true}});
+    Station.scope('inactive', {where: { active: false}});
+  });
+
+  beforeEach(function (done) {
+    Station.destroyAll(done);
+  });
+  
+  beforeEach(function (done) {
+    Station.create({ name: 'b', order: 2, active: false }, done);
+  });
+  
+  beforeEach(function (done) {
+    Station.create({ name: 'a', order: 1 }, done);
+  });
+  
+  beforeEach(function (done) {
+    Station.create({ name: 'd', order: 4, active: false }, done);
+  });
+    
+  beforeEach(function (done) {
+    Station.create({ name: 'c', order: 3 }, done);
+  });
+  
+  it('should find all - verify', function(done) {
+    Station.ordered(function(err, stations) {
+        should.not.exist(err);
+        stations.should.have.length(4);
+        stations[0].name.should.equal('a');
+        stations[1].name.should.equal('b');
+        stations[2].name.should.equal('c');
+        stations[3].name.should.equal('d');
+        done();
+    });
+  });
+  
+  it('should count all in scope - active', function(done) {
+    Station.active.count(function(err, count) {
+        should.not.exist(err);
+        count.should.equal(2);
+        done();
+    });
+  });
+  
+  it('should count all in scope - inactive', function(done) {
+    Station.inactive.count(function(err, count) {
+        should.not.exist(err);
+        count.should.equal(2);
+        done();
+    });
+  });
+  
+  it('should count filtered - active', function(done) {
+    Station.active.count({ order: { gt: 1 } }, function(err, count) {
+        should.not.exist(err);
+        count.should.equal(1);
+        done();
+    });
+  });
+
+  it('should count filtered - inactive', function(done) {
+    Station.inactive.count({ order: 2 }, function(err, count) {
+        should.not.exist(err);
+        count.should.equal(1);
+        done();
+    });
+  });
+  
+  it('should allow filtered destroyAll', function(done) {
+    Station.ordered.destroyAll({ active: false }, function(err) {
+        should.not.exist(err);
+        verify();
+    });
+    
+    var verify = function() {
+      Station.ordered.count(function(err, count) {
+        should.not.exist(err);
+        count.should.equal(2);
+        Station.inactive.count(function(err, count) {
+            should.not.exist(err);
+            count.should.equal(0);
+            done();
+        });
+      });
+    };
+  });
+  
+});