make quote replacement optional in UnsafeLiteral

Author: ahmad-moussawi

Program/Program.cs

@@ -35,20 +35,17 @@ private class Installment
         static void Main(string[] args)
         {
 
-            var db = SqlLiteQueryFactory();
-
-            var id = db.Query("accounts").InsertGetId<int>(new
+            var query = new Query("accounts").AsInsert(new
             {
                 name = "new Account",
                 currency_id = "USD",
-                created_at = DateTime.UtcNow
+                created_at = DateTime.UtcNow,
+                Value = SqlKata.Expressions.UnsafeLiteral("nextval('hello')", replaceQuotes: false)
             });
 
-            var id2 = db.Select<int>("insert into accounts(name, currency_id, created_at) values ('account 2','usd','2019-01-01 20:00:00');select last_insert_rowid();");
-
-            Console.WriteLine($"last id is: {id}");
-            Console.WriteLine($"last id2 is: {id2.First()}");
-
+            var compiler = new SqlServerCompiler();
+            var sql = compiler.Compile(query).Sql;
+            Console.WriteLine(sql);
         }
 
         private static void log(Compiler compiler, Query query)

QueryBuilder/Expressions.cs

@@ -18,10 +18,11 @@ public static Variable Variable(string name)
         /// WARNING: don't pass user data directly to this method.
         /// </summary>
         /// <param name="value"></param>
+        /// <param name="replaceQuotes">if true it will esacpe single quotes</param>
         /// <returns></returns>
-        public static UnsafeLiteral UnsafeLiteral(string value)
+        public static UnsafeLiteral UnsafeLiteral(string value, bool replaceQuotes = true)
         {
-            return new UnsafeLiteral(value);
+            return new UnsafeLiteral(value, replaceQuotes);
         }
     }
 }

QueryBuilder/UnsafeLiteral.cs

@@ -2,21 +2,20 @@ namespace SqlKata
 {
     public class UnsafeLiteral
     {
-        private string _value;
-        public string Value
+        public string Value {get; set;}
+
+        public UnsafeLiteral(string value, bool replaceQuotes = true)
         {
-            get
+            if(value == null)
             {
-                return _value;
+                value = "";
             }
-            set
+
+            if(replaceQuotes)
             {
-                _value = value.Replace("'", "''");
+                value = value.Replace("'", "''");
             }
-        }
 
-        public UnsafeLiteral(string value)
-        {
             this.Value = value;
         }