protected LiteQuery GetRefSubQuery(string refTableName, string refKeyName, string refDisplayName, string foreignTableAlias, string foreignName)
{
string tableAlias = string.Empty;
LiteQuery query = LiteQuery.New(refTableName, tableAlias);
query.AddField(tableAlias, refDisplayName);
query.Filter = FilterField.New(tableAlias, refKeyName).Equal(foreignTableAlias, foreignName);
return(query);
}
public LiteQuery GetMMSubQuery(string innnerTableName, string leftFieldName, string rightFieldName, object rightValue)
{
string tableAlias = string.Empty;
LiteQuery query = LiteQuery.New(innnerTableName, tableAlias);
query.AddField(tableAlias, leftFieldName);
query.Filter = FilterField.New(tableAlias, rightFieldName).Equal(rightValue);
return(query);
}
protected LiteFilter GetFilterForMultiColumns(string tableAlias, string fields, object o)
{
List <string> list = (from p in fields.Split(new char[] { ',' })
where !string.IsNullOrEmpty(p)
select p).ToList <string>();
LiteFilter filter = LiteFilter.False();
foreach (string str in list)
{
filter = filter.Or(FilterField.New(tableAlias, str).Contains(o));
}
return(filter);
}
protected LiteFilter GetFilterForMultiValues(string tableAlias, string fieldName, object o)
{
List <int> list = (from p in Convert.ToString(o).Split(new char[] { ',' })
select p.ToIntNullable() into p
where p.HasValue
select p.Value).ToList <int>();
LiteFilter filter = LiteFilter.False();
foreach (int num in list)
{
filter = filter.Or(FilterField.New(tableAlias, fieldName).Equal(num));
}
return(filter);
}
public static LiteFilter GetFilter(this ViewQueryEx ve)
{
switch (ve.CompareType)
{
case CompareTypeEnum.LessThan:
return(FilterField.New(ve.TableAlias, ve.FieldName).LessThan(ve.ConditionValue));
case CompareTypeEnum.LessThanOrEqual:
return(FilterField.New(ve.TableAlias, ve.FieldName).LessThanOrEqual(ve.ConditionValue));
case CompareTypeEnum.Equal:
return(FilterField.New(ve.TableAlias, ve.FieldName).Equal(ve.ConditionValue));
case CompareTypeEnum.GreaterThanOrEqual:
return(FilterField.New(ve.TableAlias, ve.FieldName).GreaterThanOrEqual(ve.ConditionValue));
case CompareTypeEnum.GreaterThan:
return(FilterField.New(ve.TableAlias, ve.FieldName).GreaterThan(ve.ConditionValue));
case CompareTypeEnum.EndWith:
return(FilterField.New(ve.TableAlias, ve.FieldName).EndWith(ve.ConditionValue));
case CompareTypeEnum.StartWith:
return(FilterField.New(ve.TableAlias, ve.FieldName).StartWith(ve.ConditionValue));
case CompareTypeEnum.Contains:
return(FilterField.New(ve.TableAlias, ve.FieldName).Contains(ve.ConditionValue));
case CompareTypeEnum.NotEqual:
return(FilterField.New(ve.TableAlias, ve.FieldName).NotEqual(ve.ConditionValue));
case CompareTypeEnum.IN:
return(FilterField.New(ve.TableAlias, ve.FieldName).IN(ve.SubQuery));
case CompareTypeEnum.IsNull:
return(FilterField.New(ve.TableAlias, ve.FieldName).IsNull());
case CompareTypeEnum.IsNotNull:
return(FilterField.New(ve.TableAlias, ve.FieldName).IsNotNull());
}
throw new Exception(string.Format("暂不支持动态添加{0}类型查询条件！", CompareTypeEnum.StartWith.ToString()));
}
public override DataTable Query()
{
var q = LiteQuery.New("T_User", "a");
q.SelectFields.Add(LiteField.NewEntityField("a", "User_ID"));
q.SelectFields.Add(LiteField.NewEntityField("a", "User_Name"));
q.SelectFields.Add(LiteField.NewEntityField("a", "User_Code"));
q.SelectFields.Add(LiteField.NewEntityField("a", "Department_ID"));
q.SelectFields.Add(LiteField.NewEntityField("a", "User_Mobile"));
var subQ = GetRefSubQuery("T_Department", "Department_ID", "Department_Name", "a", "Department_ID");
q.SelectFields.Add(LiteField.NewSubQueryField(subQ, "Department_ID_V"));
q.Filter = LiteFilter.True();
if (!string.IsNullOrEmpty(this.UserName))
{
var fUserName = FilterField.New("a", "User_Name").Contains(this.UserName);
q.Filter = q.Filter.And(fUserName);
}
if (!string.IsNullOrEmpty(this.UserCode))
{
var fUserCode = FilterField.New("a", "User_Code").Contains(this.UserCode);
q.Filter = q.Filter.And(fUserCode);
}
if (this.DepartmentId != null)
{
var fDeptId = FilterField.New("a", "Department_ID").Equal(this.DepartmentId.Value);
q.Filter = q.Filter.And(fDeptId);
}
AddFilterForPrevilege(q);
AddFilterForShared(q);
q.SkipNumber = this.PageIndex * this.PageSize;
q.TakeNumber = this.PageSize;
return(this.DataHelper.ExecuteLiteQuery(q));
}
