public static void Main()
{
using (SqlConnection conn = new SqlConnection(ConnString)) {
DateTime minHireDate = DateTime.Today.AddDays(-30);
IEnumerable <User> users = conn.GetList <User>("where HireDate >= @minHireDate ", new { minHireDate });
User user = new User()
{
FirstName = "Jason",
LastName = "Borne",
UserName = "******",
Permissions = UserPermissions.Admin,
};
conn.Insert(user);
string condition = WhereConditionGenerator.Create <User>((u) => u.UserName == "jborne" &&
(u.FirstName != null || u.Permissions == UserPermissions.Basic) &&
new string[] { "Jason", "Chris", "Zack" }.Contains(u.FirstName),
out IDictionary <string, object> param);
// condition = "(((Test.Col1 = 11) AND ((Test.Col2 is not NULL) OR (Test.Col4 is NULL))) AND Test.Col2 in @P0)"
// param = List<object>() { "aa", "bb", "cc" }
IEnumerable <User> result4 = conn.Query <User>("SELECT * FROM Users WHERE " + condition, param);
}
}
/// <summary>
/// Compiles an expression using <see cref="WhereConditionGenerator"/> and stores the result.
/// </summary>
/// <param name="predicate">The predicate to use for the query.</param>
public WhereConditionData(Expression <Func <T, bool> > predicate)
{
WhereCondition = "WHERE " + WhereConditionGenerator.Create(predicate, out IDictionary <string, object> param);
Param = param;
Predicate = predicate;
}