Fix postgres adapter

lib/abstract-class.js

@@ -155,7 +155,11 @@ AbstractClass.create = function (data) {
 };
 
 AbstractClass.exists = function exists(id, cb) {
-    this.schema.adapter.exists(this.modelName, id, cb);
+    if (id) {
+        this.schema.adapter.exists(this.modelName, id, cb);
+    } else {
+        cb(new Error('Model::exists requires positive id argument'));
+    }
 };
 
 AbstractClass.find = function find(id, cb) {

lib/adapters/postgres.js

@@ -3,6 +3,7 @@
  */
 var Client = require('pg').Client;
 var Hash = require('hashish');
+
 exports.initialize = function initializeSchema(schema, callback) {
     var s = schema.settings;
     schema.client = new Client(s.url ? s.url : {
@@ -38,7 +39,7 @@ PG.prototype.query = function (sql, callback) {
     var log = this.log;
     this.client.query(sql, function (err, data) {
         log(sql, time);
-        callback(err, Hash(data.rows));
+        callback(err, data ? Hash(data.rows) : null);
     });
 };
 
@@ -62,8 +63,10 @@ PG.prototype.create = function (model, data, callback) {
     } else {
         sql += ' VALUES ()';
     }
+    sql += ' RETURNING id';
     this.query(sql, function (err, info) {
-        callback(err, info && info.insertId);
+        if (err) return callback(err);
+        callback(err, info && info.items[0] && info.items[0].id);
     });
 };
 
@@ -91,21 +94,21 @@ PG.prototype.toFields = function (model, data, forCreate) {
 };
 
 PG.prototype.toDatabase = function (prop, val) {
-    if (prop.type.name === 'Number') return val;
     if (val === null) return 'NULL';
+    if (prop.type.name === 'Number') return val;
     if (prop.type.name === 'Date') {
         if (!val) return 'NULL';
         if (!val.toUTCString) {
             val = new Date(val);
         }
         val = [
-            val.getFullYear(),
+            val.getUTCFullYear(),
-            val.getMonth() + 1,
+            val.getUTCMonth() + 1,
-            val.getDate()
+            val.getUTCDate()
         ].join('-') + ' ' + [
-          val.getHours(),
+          val.getUTCHours(),
-          val.getMinutes(),
+          val.getUTCMinutes(),
-          val.getSeconds()  
+          val.getUTCSeconds()  
         ].join(':');
         return escape(val);
     }
@@ -129,24 +132,24 @@ PG.prototype.exists = function (model, id, callback) {
     var sql = 'SELECT 1 FROM "' + model + '" WHERE "id" = ' + id + ' LIMIT 1';
     this.query(sql, function (err, data) {
         if (err) return callback(err);
-        callback(null, data.length === 1);
+        callback(null, data.items.length === 1);
     });
 };
 
 PG.prototype.find = function find(model, id, callback) {
     var sql = 'SELECT * FROM "' + model + '" WHERE "id" = ' + id + ' LIMIT 1';
     this.query(sql, function (err, data) {
-        if (data && data.length === 1) {
+        if (data && data.items && data.items.length === 1) {
-            data[0].id = id;
+            data.items[0].id = id;
         } else {
-            data = [null];
+            data = { items: [null] };
         }
-        callback(err, this.fromDatabase(model, data[0]));
+        callback(err, this.fromDatabase(model, data.items[0]));
     }.bind(this));
 };
 
 PG.prototype.destroy = function destroy(model, id, callback) {
-    var sql = 'DELETE FROM "' + model + '" WHERE "id" = ' + id + ' LIMIT 1';
+    var sql = 'DELETE FROM "' + model + '" WHERE "id" = ' + id;
     this.query(sql, function (err) {
         callback(err);
     });
@@ -154,28 +157,39 @@ PG.prototype.destroy = function destroy(model, id, callback) {
 
 // TODO: hook up where, order, limit and offset conditions
 PG.prototype.all = function all(model, filter, callback) {
-    this.query('SELECT * FROM "' + model + '"' + this.toFilter(model,filter), function (err, data) {
+    this.query('SELECT * FROM "' + model + '"' + this.toFilter(model, filter), function (err, data) {
         if (err) {
             return callback(err, []);
         }
-        callback(err, filter ? data.filter(applyFilter(filter)) : data);
+        callback(err, filter ? data.items.filter(applyFilter(filter)) : data.items);
     }.bind(this));
 };
 
 PG.prototype.toFilter = function (model, filter) {
-    if (typeof filter.where === 'function') {
+    if (filter && typeof filter.where === 'function') {
       return filter();
     }
+    if (!filter) return '';
     var props = this._models[model].properties;
     var out='';
-    if(filter.where){
+    if (filter.where) {
         var fields = [];
         Object.keys(filter.where).forEach(function (key) {
+            if (filter.where[key] && filter.where[key].constructor.name === 'RegExp') {
+                return;
+            }
             if (props[key]) {
-               fields.push('"' + key + '" = ' + this.toDatabase(props[key], filter.where[key]));
+                var filterValue = this.toDatabase(props[key], filter.where[key]);
+                if (filterValue === 'NULL') {
+                    fields.push('"' + key + '" IS ' + filterValue);
+                } else {
+                    fields.push('"' + key + '" = ' + filterValue);
+                }
             }
         }.bind(this));
-        out += ' where ' + fields.join(' AND ');
+        if (fields.length) {
+            out += ' where ' + fields.join(' AND ');
+        }
     }
     return out;
 };
@@ -216,7 +230,8 @@ PG.prototype.destroyAll = function destroyAll(model, callback) {
 
 PG.prototype.count = function count(model, callback) {
     this.query('SELECT count(*) as cnt FROM "' + model + '"', function (err, res) {
-        callback(err, err ? null : res[0].cnt);
+        if (err) return callback(err);
+        callback(err, res && res.items[0] && res.items[0].cnt);
     });
 };
 

test/common_test.js

@@ -34,6 +34,7 @@ Object.keys(schemas).forEach(function (schemaName) {
     if (process.env.ONLY && process.env.ONLY !== schemaName) return;
     context(schemaName, function () {
         var schema = new Schema(schemaName, schemas[schemaName]);
+        // schema.log = console.log;
         testOrm(schema);
         if (specificTest[schemaName]) specificTest[schemaName](schema);
     });
@@ -137,7 +138,7 @@ function testOrm(schema) {
     it('should create object', function (test) {
         Post.create(function (err, post) {
             if (err) throw err;
-            test.ok(post.id);
+            test.ok(post.id, 'Id present');
             test.ok(!post.title, 'Title is blank');
             Post.exists(post.id, function (err, exists) {
                 if (err) throw err;
@@ -315,6 +316,7 @@ function testOrm(schema) {
 
         // matching null
         Post.all({where: {title: null}}, function (err, res) {
+
             var pass = true;
             res.forEach(function (r) {
                 if (r.title != null) pass = false;