public static string ExpressionToString(this BinaryExpression body, IExpressionFunctions expressionFunctions)
{
Expression left = body.Left;
Expression right = body.Right;
string nodeString = expressionFunctions.GetOperatorNode(body.NodeType);
string leftString = (left is BinaryExpression leftB) ?
$"{leftB.ExpressionToString(expressionFunctions)}{nodeString} " :
$"{(left as MemberExpression).Member.Name}{nodeString}";
return((right is BinaryExpression rightB) ?
$"{leftString}{rightB.ExpressionToString(expressionFunctions).NormalizeString()}" :
$"{leftString}{right.ToString().NormalizeString()} ");
}
public static string GenerateWhere <TEntity>(Expression <Func <TEntity, bool> > identifierExpression, IExpressionFunctions expressionFunctions)
{
// TODO: verificar se é um binary, se for um member concatenar com == true
BinaryExpression body = identifierExpression.Body as BinaryExpression;
return($" WHERE {body.ExpressionToString(expressionFunctions).SubstringLast(1)}");
}
