public List <T> Filter <T, TResult>(Expression <Func <T, bool> > predicate, Expression <Func <T, TResult> > orderBy) where T : class
{
string sql = new SQLQuery().Select(String.Join(",", typeof(T).GetEntityColumnNames()))
.From($"{this.mDatabaseName}{typeof(T).GetEntityTableName()}")
.Where(String.Join(" ", typeof(T).GetEntityColumnNames(LambdaHelper.GetConditions(predicate))))
.OrderBy(typeof(T).GetEntityColumnName(LambdaHelper.GetColumn(orderBy).FirstOrDefault(), true), true)
.Qenerate();
return(this.DBContext.SqlReader(sql).ToList <T>());
}
public bool Update(dynamic t, string key = "ID", bool isSaveChange = false)
{
var field = (t as object).ToDictionary();
var indexValue = field[key];
field.Remove(key);
string sql = new SQLQuery().Update(this.mTableName)
.Set(field)
.Where($"{key}='{indexValue}'")
.Qenerate();
return(this.DBContext.AccessQuery(sql) > 0);
}
public List <dynamic> Filter(string selected, string where, string orderBy, out int total, int index = 0, int size = 50, bool isAsc = true)
{
string sql = new SQLQuery().Select(selected)
.From(this.mTableName)
.Where(where)
.OrderBy(orderBy, isAsc)
.Skip((index - 1) * size)
.Take(size)
.Qenerate();
total = this.Count(where);
return(this.DBContext.SqlReader(sql).ToList());
}
public List <T1> CrossJoin <T1, T2, TCross, TResult>(Expression <Func <T1, TCross> > crossApply, Expression <Func <T1, bool> > predicate, Expression <Func <T1, TResult> > orderBy, out int total, int index = 0, int size = 50, bool isAsc = true) where T1 : class
{
string sql = new SQLQuery().Select(String.Join(",", typeof(T1).GetEntityColumnNames()))
.From($"{this.mDatabaseName}{typeof(T1).GetEntityTableName()}")
.Cross($"{typeof(T2).GetEntityTableName()}({String.Join(",", typeof(T1).GetEntityColumnNames(LambdaHelper.GetColumn(crossApply)))})")
.Where(String.Join(" ", typeof(T1).GetEntityColumnNames(LambdaHelper.GetConditions(predicate))))
.OrderBy(typeof(T1).GetEntityColumnName(LambdaHelper.GetColumn(orderBy).FirstOrDefault(), true))
.Skip((index - 1) * size)
.Take(size)
.Qenerate();
total = this.Count <T1>(predicate);
return(this.DBContext.SqlReader(sql).ToList <T1>());
}
public List <T> Exec <T>() where T : class
{
string sql = new SQLQuery().Exec($"{this.mDatabaseName}{typeof(T).GetEntityTableName()}").Qenerate();
return(this.DBContext.SqlReader(sql).ToList <T>());
}
