public void ValueTypeConditionBuilder()
{
var filter = new ValueTypeFilter <User, int>();
filter.For(x => x.Id);
filter.Conditions(conditions =>
{
conditions["none"] = new ValueTypeNoneCondition <int>();
conditions["equal"] = new ValueTypeEqualCondition <int>();
conditions["isin"] = new ValueTypeIsInCondition <int>();
conditions["isnull"] = new ValueTypeIsNullCondition <int>();
conditions["isnotnull"] = new ValueTypeIsNullCondition <int>();
});
filter.ConditionBuilder((filterValue, condition, conditionKey) =>
{
var expression = condition(filterValue);
if (expression == null)
{
return(null);
}
switch (conditionKey)
{
case "isnotnull":
{
return(Linq.Expr <Task, bool>(x => x.Users.AsQueryable().Any()));
}
case "isnull":
{
return(Linq.Expr <Task, bool>(x => !x.Users.AsQueryable().Any()));
}
default: //for equal,isin
{
return(Linq.Expr <Task, bool>(x => x.Users.AsQueryable().Any(expression)));
}
}
});
filter.Init(new FilterValue <int?>
{
LeftValue = 1,
ConditionKey = "equal"
});
var expr1 = filter.BuildExpression <User>();
Assert.IsNull(expr1);
var epxr2 = filter.BuildExpression <Task>();
Assert.IsNotNull(epxr2);
var tasksAnyUserId1 = filter.ApplyFilter(Source);
Assert.IsTrue(tasksAnyUserId1.Count() == 1);
filter.Init(new FilterValue <int?>
{
ConditionKey = "isnotnull"
});
var tasksAnyUsers = filter.ApplyFilter(Source);
Assert.IsTrue(tasksAnyUsers.Count() == 3);
filter.Init(new FilterValue <int?>
{
ConditionKey = "isnull"
});
var tasksNotAnyUsers = filter.ApplyFilter(Source);
Assert.IsTrue(tasksNotAnyUsers.Count() == 1);
filter.Init(new FilterValue <int?>
{
ConditionKey = "isin",
Values = new List <int?> {
1, 5
}
});
var tasksIsInUser1User5 = filter.ApplyFilter(Source);
Assert.IsTrue(tasksIsInUser1User5.Count() == 2);
}