feat(upsert): return upserted record with options.returning=true

lib/dialects/mssql/query-generator.js

@@ -335,7 +335,6 @@ const QueryGenerator = {
     const tableNameQuoted = this.quoteTable(tableName);
     let needIdentityInsertWrapper = false;
 
-
     //Obtain primaryKeys, uniquekeys and identity attrs from rawAttributes as model is not passed
     for (const key in model.rawAttributes) {
       if (model.rawAttributes[key].primaryKey) {

lib/dialects/mssql/query.js

@@ -213,12 +213,7 @@ class Query extends AbstractQuery {
     } else if (this.isSelectQuery()) {
       result = this.handleSelectQuery(data);
     } else if (this.isUpsertQuery()) {
-      //Use the same return value as that of MySQL & Postgres
-      if (data[0].$action === 'INSERT') {
-        result = 1;
-      } else {
-        result = 2;
-      }
+      result = data[0];
     } else if (this.isCallQuery()) {
       result = data[0];
     } else if (this.isBulkUpdateQuery()) {

lib/dialects/postgres/query-generator.js

@@ -345,34 +345,38 @@ const QueryGenerator = {
     return `ALTER TABLE ${this.quoteTable(tableName)} RENAME COLUMN ${attrString.join(', ')};`;
   },
 
-  fn(fnName, tableName, body, returns, language) {
+  fn(fnName, tableName, parameters, body, returns, language) {
     fnName = fnName || 'testfunc';
     language = language || 'plpgsql';
-    returns = returns || 'SETOF ' + this.quoteTable(tableName);
+    returns = returns ? `RETURNS ${returns}` : '';
+    parameters = parameters || '';
 
-    return `CREATE OR REPLACE FUNCTION pg_temp.${fnName}() RETURNS ${returns} AS $func$ BEGIN ${body} END; $func$ LANGUAGE ${language}; SELECT * FROM pg_temp.${fnName}();`;
+    return `CREATE OR REPLACE FUNCTION pg_temp.${fnName}(${parameters}) ${returns} AS $func$ BEGIN ${body} END; $func$ LANGUAGE ${language}; SELECT * FROM pg_temp.${fnName}();`;
   },
 
-  exceptionFn(fnName, tableName, main, then, when, returns, language) {
+  exceptionFn(fnName, tableName, parameters, main, then, when, returns, language) {
     when = when || 'unique_violation';
 
     const body = `${main} EXCEPTION WHEN ${when} THEN ${then};`;
 
-    return this.fn(fnName, tableName, body, returns, language);
+    return this.fn(fnName, tableName, parameters, body, returns, language);
   },
 
   upsertQuery(tableName, insertValues, updateValues, where, model, options) {
-    const insert = this.insertQuery(tableName, insertValues, model.rawAttributes, options);
-    const update = this.updateQuery(tableName, updateValues, where, options, model.rawAttributes);
+    const primaryField = this.quoteIdentifier(model.primaryKeyField);
+
+    let insert = this.insertQuery(tableName, insertValues, model.rawAttributes, options);
+    let update = this.updateQuery(tableName, updateValues, where, options, model.rawAttributes);
+
+    insert = insert.replace('RETURNING *', `RETURNING ${primaryField} INTO primary_key`);
+    update = update.replace('RETURNING *', `RETURNING ${primaryField} INTO primary_key`);
 
-    // The numbers here are selected to match the number of affected rows returned by MySQL
     return this.exceptionFn(
       'sequelize_upsert',
       tableName,
-      insert + ' RETURN 1;',
-      update + '; RETURN 2',
-      'unique_violation',
-      'integer'
+      'OUT created boolean, OUT primary_key text',
+      `${insert} created := true;`,
+      `${update}; created := false`
     );
   },
 

lib/dialects/postgres/query.js

@@ -236,12 +236,11 @@ class Query extends AbstractQuery {
           if (!this.options.returning) {
             return parseInt(rowCount, 10);
           }
-
           return this.handleSelectQuery(rows);
         } else if (QueryTypes.BULKDELETE === this.options.type) {
           return parseInt(rowCount, 10);
         } else if (this.isUpsertQuery()) {
-          return rows[0].sequelize_upsert;
+          return rows[0];
         } else if (this.isInsertQuery() || this.isUpdateQuery()) {
           if (this.instance && this.instance.dataValues) {
             for (const key in rows[0]) {

lib/dialects/sqlite/query-interface.js

@@ -171,6 +171,8 @@ exports.addConstraint = addConstraint;
  *
  * @param {String} tableName
  * @param {Object} options  Query Options
+ *
+ * @private
  * @returns {Promise}
  */
 function getForeignKeyReferencesForTable(tableName, options) {

lib/model.js

@@ -2215,22 +2215,25 @@ class Model {
    * @param  {Boolean}      [options.validate=true] Run validations before the row is inserted
    * @param  {Array}        [options.fields=Object.keys(this.attributes)] The fields to insert / update. Defaults to all changed fields
    * @param  {Boolean}      [options.hooks=true]  Run before / after upsert hooks?
+   * @param  {Boolean}      [options.returning=false] Append RETURNING * to get back auto generated values (Postgres only)
    * @param  {Transaction}  [options.transaction] Transaction to run query under
    * @param  {Function}     [options.logging=false] A function that gets executed while running the query to log the sql.
    * @param  {Boolean}      [options.benchmark=false] Pass query execution time in milliseconds as second argument to logging function (options.logging).
    * @param  {String}       [options.searchPath=DEFAULT] An optional parameter to specify the schema search_path (Postgres only)
    *
-   * @return {Promise<created>} Returns a boolean indicating whether the row was created or updated.
+   * @return {Promise<created>} Returns a boolean indicating whether the row was created or updated. For Postgres/MSSQL with (options.returning=true), it returns record and created boolean with signature `<Model, created>`.
    */
   static upsert(values, options) {
-    options = _.extend({
-      hooks: true
+    options = Object.assign({
+      hooks: true,
+      returning: false
     }, Utils.cloneDeep(options || {}));
+
     options.model = this;
 
     const createdAtAttr = this._timestampAttributes.createdAt;
     const updatedAtAttr = this._timestampAttributes.updatedAt;
-    const hadPrimary = this.primaryKeyField in values || this.primaryKeyAttribute in values;
+    const hasPrimary = this.primaryKeyField in values || this.primaryKeyAttribute in values;
     const instance = this.build(values);
 
     if (!options.fields) {
@@ -2256,7 +2259,7 @@ class Model {
 
       // Build adds a null value for the primary key, if none was given by the user.
       // We need to remove that because of some Postgres technicalities.
-      if (!hadPrimary && this.primaryKeyAttribute && !this.rawAttributes[this.primaryKeyAttribute].defaultValue) {
+      if (!hasPrimary && this.primaryKeyAttribute && !this.rawAttributes[this.primaryKeyAttribute].defaultValue) {
         delete insertValues[this.primaryKeyField];
         delete updateValues[this.primaryKeyField];
       }
@@ -2267,6 +2270,12 @@ class Model {
         }
       }).then(() => {
         return this.QueryInterface.upsert(this.getTableName(options), insertValues, updateValues, instance.where(), this, options);
+      }).spread((created, primaryKey) => {
+        if (options.returning === true && primaryKey) {
+          return this.findById(primaryKey, options).then(record => [record, created]);
+        }
+
+        return created;
       }).tap(result => {
         if (options.hooks) {
           return this.runHooks('afterUpsert', result, options);

lib/query-interface.js

@@ -904,9 +904,21 @@ class QueryInterface {
     });
   }
 
-  upsert(tableName, valuesByField, updateValues, where, model, options) {
+  /**
+   * Upsert
+   *
+   * @param {String} tableName
+   * @param {Object} insertValues values to be inserted, mapped to field name
+   * @param {Object} updateValues values to be updated, mapped to field name
+   * @param {Object} where        various conditions
+   * @param {Model}  model
+   * @param {Object} options
+   *
+   * @returns {Promise<created, primaryKey>}
+   */
+  upsert(tableName, insertValues, updateValues, where, model, options) {
     const wheres = [];
-    const attributes = Object.keys(valuesByField);
+    const attributes = Object.keys(insertValues);
     let indexes = [];
     let indexFields;
 
@@ -938,7 +950,7 @@ class QueryInterface {
       if (_.intersection(attributes, index).length === index.length) {
         where = {};
         for (const field of index) {
-          where[field] = valuesByField[field];
+          where[field] = insertValues[field];
         }
         wheres.push(where);
       }
@@ -949,15 +961,26 @@ class QueryInterface {
     options.type = QueryTypes.UPSERT;
     options.raw = true;
 
-    const sql = this.QueryGenerator.upsertQuery(tableName, valuesByField, updateValues, where, model, options);
-    return this.sequelize.query(sql, options).then(rowCount => {
-      if (rowCount === undefined) {
-        return rowCount;
+    const sql = this.QueryGenerator.upsertQuery(tableName, insertValues, updateValues, where, model, options);
+    return this.sequelize.query(sql, options).then(result => {
+      switch (this.sequelize.options.dialect) {
+        case 'postgres':
+          return [result.created, result.primary_key];
+
+        case 'mssql':
+          return [
+            result.$action === 'INSERT',
+            result[model.primaryKeyField]
+          ];
+
+        // MySQL returns 1 for inserted, 2 for updated
+        // http://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html.
+        case 'mysql':
+          return [result === 1, undefined];
+
+        default:
+          return [result, undefined];
       }
-
-      // MySQL returns 1 for inserted, 2 for updated http://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html. Postgres has been modded to do the same
-
-      return rowCount === 1;
     });
   }
 

test/integration/model/upsert.test.js

@@ -15,6 +15,14 @@ describe(Support.getTestDialectTeaser('Model'), () => {
     this.clock = sinon.useFakeTimers();
   });
 
+  after(function() {
+    this.clock.restore();
+  });
+
+  beforeEach(function() {
+    this.clock.reset();
+  });
+
   beforeEach(function() {
     this.User = this.sequelize.define('user', {
       username: DataTypes.STRING,
@@ -50,10 +58,6 @@ describe(Support.getTestDialectTeaser('Model'), () => {
     return this.sequelize.sync({ force: true });
   });
 
-  after(function() {
-    this.clock.restore();
-  });
-
   if (current.dialect.supports.upserts) {
     describe('upsert', () => {
       it('works with upsert on id', function() {
@@ -154,7 +158,6 @@ describe(Support.getTestDialectTeaser('Model'), () => {
             expect(created2).to.be.ok;
           }
 
-
           this.clock.tick(1000);
           // Update the first one
           return User.upsert({ a: 'a', b: 'b', username: 'doe' });
@@ -201,7 +204,6 @@ describe(Support.getTestDialectTeaser('Model'), () => {
             expect(created).to.be.ok;
           }
 
-
           this.clock.tick(1000);
           return this.User.upsert({ id: 42, username: 'doe', blob: new Buffer('andrea') });
         }).then(function(created) {
@@ -250,7 +252,6 @@ describe(Support.getTestDialectTeaser('Model'), () => {
             expect(created).to.be.ok;
           }
 
-
           this.clock.tick(1000);
           return this.ModelWithFieldPK.upsert({ userId: 42, foo: 'second' });
         }).then(function(created) {
@@ -274,7 +275,6 @@ describe(Support.getTestDialectTeaser('Model'), () => {
             expect(created).to.be.ok;
           }
 
-
           this.clock.tick(1000);
           return this.User.upsert({ id: 42, username: 'doe', foo: this.sequelize.fn('upper', 'mixedCase2') });
         }).then(function(created) {
@@ -525,6 +525,79 @@ describe(Support.getTestDialectTeaser('Model'), () => {
           });
         });
       }
+
+      if (current.dialect.supports.returnValues) {
+        describe('with returning option', () => {
+          it('works with upsert on id', function() {
+            return this.User.upsert({ id: 42, username: 'john' }, { returning: true }).spread((user, created) => {
+              expect(user.get('id')).to.equal(42);
+              expect(user.get('username')).to.equal('john');
+              expect(created).to.be.true;
+
+              return this.User.upsert({ id: 42, username: 'doe' }, { returning: true });
+            }).spread((user, created) => {
+              expect(user.get('id')).to.equal(42);
+              expect(user.get('username')).to.equal('doe');
+              expect(created).to.be.false;
+            });
+          });
+
+          it('works for table with custom primary key field', function() {
+            const User = this.sequelize.define('User', {
+              id: {
+                type: DataTypes.INTEGER,
+                autoIncrement: true,
+                primaryKey: true,
+                field: 'id_the_primary'
+              },
+              username: {
+                type: DataTypes.STRING
+              }
+            });
+
+            return User.sync({ force: true }).then(() => {
+              return User.upsert({ id: 42, username: 'john' }, { returning: true });
+            }).spread((user, created) => {
+              expect(user.get('id')).to.equal(42);
+              expect(user.get('username')).to.equal('john');
+              expect(created).to.be.true;
+
+              return User.upsert({ id: 42, username: 'doe' }, { returning: true });
+            }).spread((user, created) => {
+              expect(user.get('id')).to.equal(42);
+              expect(user.get('username')).to.equal('doe');
+              expect(created).to.be.false;
+            });
+          });
+
+          it('works for non incrementing primaryKey', function() {
+            const User = this.sequelize.define('User', {
+              id: {
+                type: DataTypes.STRING,
+                primaryKey: true,
+                field: 'id_the_primary'
+              },
+              username: {
+                type: DataTypes.STRING
+              }
+            });
+
+            return User.sync({ force: true }).then(() => {
+              return User.upsert({ id: 'surya', username: 'john' }, { returning: true });
+            }).spread((user, created) => {
+              expect(user.get('id')).to.equal('surya');
+              expect(user.get('username')).to.equal('john');
+              expect(created).to.be.true;
+
+              return User.upsert({ id: 'surya', username: 'doe' }, { returning: true });
+            }).spread((user, created) => {
+              expect(user.get('id')).to.equal('surya');
+              expect(user.get('username')).to.equal('doe');
+              expect(created).to.be.false;
+            });
+          });
+        });
+      }
     });
   }
 });