Add x-plat SqlBool

Author: mythz

src/ServiceStack.OrmLite.SqlServer/SqlServerOrmLiteDialectProvider.cs

@@ -358,6 +358,8 @@ public override string GetLoadChildrenSubSelect<From>(SqlExpression<From> expr)
         public override string SqlCurrency(string fieldOrValue, string currencySymbol) => 
             SqlConcat(new[] { "'" + currencySymbol + "'", $"CONVERT(VARCHAR, CONVERT(MONEY, {fieldOrValue}), 1)" });
 
+        public override string SqlBool(bool value) => value ? "1" : "0";
+
         protected SqlConnection Unwrap(IDbConnection db) => (SqlConnection)db.ToDbConnection();
 
         protected SqlCommand Unwrap(IDbCommand cmd) => (SqlCommand)cmd.ToDbCommand();

src/ServiceStack.OrmLite.Sqlite/SqliteOrmLiteDialectProviderBase.cs

@@ -207,6 +207,8 @@ public override string GetColumnDefinition(FieldDefinition fieldDef)
         public override string SqlConcat(IEnumerable<object> args) => string.Join(" || ", args);
 
         public override string SqlCurrency(string fieldOrValue, string currencySymbol) => SqlConcat(new []{ "'" + currencySymbol + "'", "printf(\"%.2f\", " + fieldOrValue + ")" });
+
+        public override string SqlBool(bool value) => value ? "1" : "0";
     }
 
     public static class SqliteExtensions

src/ServiceStack.OrmLite/IOrmLiteDialectProvider.cs

@@ -215,5 +215,6 @@ string ToCreateIndexStatement<T>(Expression<Func<T, object>> field,
         string SqlConcat(IEnumerable<object> args);
         string SqlCurrency(string fieldOrValue);
         string SqlCurrency(string fieldOrValue, string currencySymbol);
+        string SqlBool(bool value);
     }
 }

src/ServiceStack.OrmLite/OrmLiteDialectProviderBase.cs

@@ -1588,6 +1588,8 @@ protected virtual string ToDropColumnStatement(Type modelType, string columnName
 
         public virtual string SqlCurrency(string fieldOrValue, string currencySymbol) => SqlConcat(new List<string> { currencySymbol, fieldOrValue });
 
+        public virtual string SqlBool(bool value) => value ? "true" : "false";
+
         //Async API's, should be overrided by Dialect Providers to use .ConfigureAwait(false)
         //Default impl below uses TaskAwaiter shim in async.cs
 

tests/ServiceStack.OrmLite.Tests/SqlDialectTests.cs

@@ -9,6 +9,7 @@ public class Sqltest
         [AutoIncrement]
         public int Id { get; set; }
         public double Value { get; set; }
+        public bool Bool { get; set; }
     }
 
     public class SqlDialectTests : OrmLiteTestBase
@@ -79,5 +80,25 @@ public void Does_format_currency()
             }
         }
 
+        [Test]
+        public void Does_handle_booleans()
+        {
+            using (var db = OpenDbConnection())
+            {
+                db.DropAndCreateTable<Sqltest>();
+
+                db.Insert(new Sqltest { Value = 0, Bool = false });
+                db.Insert(new Sqltest { Value = 1, Bool = true });
+
+                var sqlBool = db.GetDialectProvider().SqlBool(false);
+                var result = db.Scalar<double>($"SELECT Value from sqltest where Bool = {sqlBool}");
+                Assert.That(result, Is.EqualTo(0));
+
+                sqlBool = db.GetDialectProvider().SqlBool(true);
+                result = db.Scalar<double>($"SELECT Value from sqltest where Bool = {sqlBool}");
+                Assert.That(result, Is.EqualTo(1));
+            }
+        }
+
     }
 }