Added sqlite3 dialect version of whereRaw/andWhereRaw

* SQLite uses integers, not booleans
* whereIn/whereNotIn with empty array uses a boolean
* Closes #477

lib/dialects/sqlite3/query.js

@@ -7,6 +7,7 @@ module.exports = function(client) {
 var _        = require('lodash');
 var inherits = require('inherits');
 
+var Raw           = require('../../raw');
 var QueryBuilder  = require('../../query/builder');
 var QueryCompiler = require('../../query/compiler');
 
@@ -18,6 +19,21 @@ function QueryBuilder_SQLite3() {
 }
 inherits(QueryBuilder_SQLite3, QueryBuilder);
 
+// Adds a raw `where` clause to the query.
+QueryBuilder_SQLite3.prototype.whereRaw =
+QueryBuilder_SQLite3.prototype.andWhereRaw = function(sql, bindings) {
+  // sqlite uses ints for bools, so cast true/false to 1/0
+  if (typeof sql === 'boolean') { sql = Number(sql); }
+  var raw = (sql instanceof Raw ? sql : new Raw(sql, bindings));
+  this._statements.push({
+    grouping: 'where',
+    type: 'whereRaw',
+    value: raw,
+    bool: this._bool()
+  });
+  return this;
+};
+
 // Query Compiler
 // -------
 function QueryCompiler_SQLite3() {

test/unit/query/builder.js

@@ -129,6 +129,7 @@ module.exports = function(qb, clientName, aliasName) {
     it('where bool', function() {
       testquery(qb().select('*').from('users').where(true), {
         mysql: 'select * from `users` where true',
+        sqlite3: 'select * from "users" where 1',
         default: 'select * from "users" where true'
       });
     });
@@ -347,6 +348,10 @@ module.exports = function(qb, clientName, aliasName) {
           sql: 'select * from `users` where false',
           bindings: []
         },
+        sqlite3: {
+          sql: 'select * from "users" where 0',
+          bindings: []
+        },
         default: {
           sql: 'select * from "users" where false',
           bindings: []
@@ -360,6 +365,10 @@ module.exports = function(qb, clientName, aliasName) {
           sql: 'select * from `users` where true',
           bindings: []
         },
+        sqlite3: {
+          sql: 'select * from "users" where 1',
+          bindings: []
+        },
         default: {
           sql: 'select * from "users" where true',
           bindings: []