public void Transform_TwoArguments ()
{
var method = typeof (StringExtensions).GetMethod (
"SqlContainsFulltext",
BindingFlags.Public | BindingFlags.Static,
null,
CallingConventions.Any,
new[] { typeof (string), typeof (string), typeof (string) },
null);
var objectExpression = Expression.Constant ("Test");
var argument1 = Expression.Constant ("es");
var language = Expression.Constant ("language");
var expression = Expression.Call (method, objectExpression, argument1, language);
var transformer = new ContainsFulltextMethodCallTransformer();
var result = transformer.Transform (expression);
var argumentExpression = Expression.Constant (string.Format ("{0}", argument1.Value));
var compositeExpression = new SqlCompositeCustomTextGeneratorExpression (
typeof (string), new SqlCustomTextExpression ("LANGUAGE ", typeof (string)), language);
var expectedResult =
new SqlFunctionExpression (typeof (bool), "CONTAINS", objectExpression, argumentExpression, compositeExpression);
SqlExpressionTreeComparer.CheckAreEqualTrees (expectedResult, result);
}
public Expression Transform (MethodCallExpression methodCallExpression)
{
ArgumentUtility.CheckNotNull ("methodCallExpression", methodCallExpression);
if (methodCallExpression.Arguments.Count == 2)
return new SqlFunctionExpression (typeof (bool), "FREETEXT", methodCallExpression.Arguments[0], methodCallExpression.Arguments[1]);
else if (methodCallExpression.Arguments.Count == 3)
{
MethodCallTransformerUtility.CheckConstantExpression (
methodCallExpression.Method.Name, methodCallExpression.Arguments[2], "language parameter");
var compositeExpression = new SqlCompositeCustomTextGeneratorExpression (
typeof (string), new SqlCustomTextExpression ("LANGUAGE ", typeof (string)), methodCallExpression.Arguments[2]);
return new SqlFunctionExpression (
typeof (bool), "FREETEXT", methodCallExpression.Arguments[0], methodCallExpression.Arguments[1], compositeExpression);
}
else
{
var message = string.Format (
"IndexOf function with {0} arguments is not supported. Expression: '{1}'",
methodCallExpression.Arguments.Count,
FormattingExpressionTreeVisitor.Format (methodCallExpression));
throw new NotSupportedException (message);
}
}
public Expression Transform (MethodCallExpression methodCallExpression)
{
MethodCallTransformerUtility.CheckArgumentCount (methodCallExpression, 2, 3);
MethodCallTransformerUtility.CheckStaticMethod (methodCallExpression);
if (methodCallExpression.Arguments.Count == 2) // overload without language
return new SqlFunctionExpression (typeof (bool), "CONTAINS", methodCallExpression.Arguments[0], methodCallExpression.Arguments[1]);
else
{
MethodCallTransformerUtility.CheckConstantExpression (methodCallExpression.Method.Name, methodCallExpression.Arguments[2], "language parameter");
var compositeExpression = new SqlCompositeCustomTextGeneratorExpression (
typeof (string), new SqlCustomTextExpression ("LANGUAGE ", typeof (string)), methodCallExpression.Arguments[2]);
return new SqlFunctionExpression (
typeof (bool), "CONTAINS", methodCallExpression.Arguments[0], methodCallExpression.Arguments[1], compositeExpression);
}
}
public void SetUp ()
{
_expression1 = Expression.Constant ("5");
_expression2 = Expression.Constant ("1");
_sqlCompositeCustomTextGeneratorExpression = new SqlCompositeCustomTextGeneratorExpression (typeof (Cook), _expression1, _expression2);
}
