Recursively coerce nested properties in dao

lib/dao.js

@@ -1565,12 +1565,14 @@ function coerceArray(val) {
  * @returns {Object} The coerced where clause
  * @private
  */
-DataAccessObject._coerce = function(where) {
+DataAccessObject._coerce = function(where, props) {
   var self = this;
   if (!where) {
     return where;
   }
 
+  props = props || self.definition.properties;
+
   var err;
   if (typeof where !== 'object' || Array.isArray(where)) {
     err = new Error(g.f('The where clause %j is not an {{object}}', where));
@@ -1578,7 +1580,6 @@ DataAccessObject._coerce = function(where) {
     throw err;
   }
 
-  var props = self.definition.properties;
   for (var p in where) {
     // Handle logical operators
     if (p === 'and' || p === 'or' || p === 'nor') {
@@ -1597,6 +1598,22 @@ DataAccessObject._coerce = function(where) {
 
       continue;
     }
+
+    if (p.match(/\./)) {
+      var model = p.split('.')[0];
+      var prop = p.split('.').slice(1);
+
+      if (props[model]) {
+        var clause = {};
+        clause[prop] = where[p];
+        where[p] = Array.isArray(props[model].type) ?
+          self._coerce(clause, props[model].type[0].definition.properties)[prop] :
+          self._coerce(clause, props[model].type.definition.properties)[prop];
+
+        continue;
+      }
+    }
+
     var DataType = props[p] && props[p].type;
     if (!DataType) {
       continue;

test/loopback-dl.test.js

@@ -1374,6 +1374,11 @@ describe('DataAccessObject', function() {
       age: Number,
       vip: Boolean,
       date: Date,
+      sub: {
+        date: Date,
+        bool: Boolean,
+        number: Number,
+      },
       location: 'GeoPoint',
       scores: [Number],
     });
@@ -1433,6 +1438,27 @@ describe('DataAccessObject', function() {
     assert.deepEqual(where, {date: d});
   });
 
+  it('coerces where clause for date types in nested properties', function() {
+    var d = new Date();
+    where = model._coerce({'sub.date': d});
+    assert.deepEqual(where, {'sub.date': d});
+
+    where = model._coerce({'sub.date': d.toISOString()});
+    assert.deepEqual(where, {'sub.date': d});
+  });
+
+  it('coerces where clause for Boolean types in nested properties', function() {
+    var bool = 'true';
+    where = model._coerce({'sub.bool': bool});
+    assert.strictEqual(where['sub.bool'], true);
+  });
+
+  it('coerces where clause for Number type in nested properties', function() {
+    var number = '123';
+    where = model._coerce({'sub.number': number});
+    assert.strictEqual(where['sub.number'], 123);
+  });
+
   it('coerces where clause for boolean types', function() {
     where = model._coerce({vip: 'true'});
     assert.deepEqual(where, {vip: true});
@@ -1518,8 +1544,7 @@ describe('DataAccessObject', function() {
 
   INVALID_CLAUSES.forEach(function(where) {
     var whereStr = JSON.stringify(where);
-    it('throws an error on malformed array-like object ' + whereStr,
-    function() {
+    it('throws an error on malformed array-like object ' + whereStr, function() {
       assert.throws(
         function() { model._coerce(where); },
         /property has invalid clause/);
@@ -1694,21 +1719,18 @@ describe('DataAccessObject', function() {
     assert.deepEqual(where, {date: undefined});
   });
 
-  it('does not coerce to a number for a simple value that produces NaN',
-    function() {
+  it('does not coerce to a number for a simple value that produces NaN', function() {
     where = model._coerce({age: 'xyz'});
     assert.deepEqual(where, {age: 'xyz'});
   });
 
-  it('does not coerce to a number for a simple value in an array that produces NaN',
-    function() {
+  it('does not coerce to a number for a simple value in an array that produces NaN', function() {
     where = model._coerce({age: {inq: ['xyz', '12']}});
     assert.deepEqual(where, {age: {inq: ['xyz', 12]}});
   });
 
   // settings
-  it('gets settings in priority',
-    function() {
+  it('gets settings in priority', function() {
     ds.settings.test = 'test';
     assert.equal(model._getSetting('test'), ds.settings.test, 'Should get datasource setting');
     ds.settings.test = undefined;