protected void AddExtendFilter(LiteQuery q)
{
foreach (ViewQueryEx ex in this.ViewQueryExs)
{
q.Filter = q.Filter.And(ex.GetFilter());
}
}
private void VisitQuery(LiteQuery q)
{
int?nullable;
if (q.SkipNumber.HasValue && (((nullable = q.SkipNumber).GetValueOrDefault() > 0) && nullable.HasValue))
{
if (q.TakeNumber.HasValue && (((nullable = q.TakeNumber).GetValueOrDefault() > 0) && nullable.HasValue))
{
this.VisitQuery_Skip_Take(q);
}
else
{
this.VisitQuery_Skip_Null(q);
}
}
else if (!q.SkipNumber.HasValue || (q.SkipNumber.Value <= 0))
{
if (q.TakeNumber.HasValue && (((nullable = q.TakeNumber).GetValueOrDefault() > 0) && nullable.HasValue))
{
this.VisitQuery_Null_Take(q);
}
else
{
this.ViewQuery_Null_Null(q);
}
}
}
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 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);
}
private void old_VisitQuery(LiteQuery q)
{
int?skipNumber;
this.sb.Append(" WITH a AS ( SELECT main.*, ROWNUM AS ").Append(ROWNUM);
this.sb.Append(" FROM (SELECT ");
this.VisitSelectFields(q);
this.sb.Append(" FROM ");
this.VisitTableSource(q.TableSource);
if ((q.Filter != null) && (q.Filter.GetRealNodeCount() > 0))
{
this.sb.Append(" WHERE ");
this.VisitFilter(q.Filter);
}
if (q.GroupByList.Count > 0)
{
this.sb.Append(" GROUP BY ");
this.VisitGroupByList(q);
}
if (q.Orders.Count > 0)
{
this.sb.Append(" ORDER BY ");
this.VisitOrderList(q);
}
this.sb.Append(") main ) SELECT ");
int num = -1;
foreach (LiteField field in q.SelectFields)
{
num++;
if (num > 0)
{
this.sb.Append(",");
}
this.sb.Append("a.");
this.sb.Append(field.FieldAlias);
this.sb.Append(" ");
}
this.sb.Append(" FROM a WHERE a.").Append(ROWNUM).Append(" ");
if (q.TakeNumber.HasValue && (q.TakeNumber.Value > 0))
{
this.sb.Append(" BETWEEN ");
skipNumber = q.SkipNumber;
this.sb.Append((int)((skipNumber.HasValue ? skipNumber.GetValueOrDefault() : 0) + 1));
this.sb.Append(" AND ");
skipNumber = q.SkipNumber;
skipNumber = q.TakeNumber;
this.sb.Append((int)((skipNumber.HasValue ? skipNumber.GetValueOrDefault() : 0) + (skipNumber.HasValue ? skipNumber.GetValueOrDefault() : 0)));
}
else
{
this.sb.Append(" > ");
skipNumber = q.SkipNumber;
this.sb.Append(skipNumber.HasValue ? skipNumber.GetValueOrDefault() : 0);
}
}
protected void AddExtendOrder(LiteQuery q)
{
if (!(string.IsNullOrEmpty(this.OrderTableAlias) || string.IsNullOrEmpty(this.OrderFieldName)))
{
q.Orders.Clear();
q.Orders.Add(new LiteOrderField(this.OrderTableAlias, this.OrderFieldName, this.OrderMethod));
}
if (q.Orders.Count == 0)
{
q.Orders.Add(new LiteOrderField("a", this.KeyName, King.Framework.LiteQueryDef.Internal.OrderMethod.DESC));
}
}
public void VisitSelectFields(LiteQuery q)
{
int num = -1;
foreach (LiteField field in q.SelectFields)
{
num++;
if (num > 0)
{
this.sb.Append(",");
}
this.VisitSelectField(field);
}
}
private void VisitOrderList(LiteQuery q)
{
int num = -1;
foreach (LiteOrderField field in q.Orders)
{
num++;
if (num > 0)
{
this.sb.Append(", ");
}
this.VisitOrderField(field);
}
}
private void VisitGroupByList(LiteQuery q)
{
int num = -1;
foreach (LiteField field in q.GroupByList)
{
num++;
if (num > 0)
{
this.sb.Append(", ");
}
this.sb.Append("[");
this.sb.Append(field.TableAlias);
this.sb.Append("].[");
this.sb.Append(field.FieldName);
this.sb.Append("]");
}
}
private void VisitQuery_Null_Take(LiteQuery q)
{
this.sb.Append("SELECT ROWNUM as ").Append(ROWNUM);
foreach (LiteField field in q.SelectFields)
{
this.sb.Append(", a.");
this.sb.Append(field.FieldAlias);
}
this.sb.Append(" FROM (");
this.ViewQuery_Null_Null(q);
this.sb.Append(") a ");
if (q.TakeNumber.HasValue && (q.TakeNumber.Value > 0))
{
this.sb.Append("WHERE ROWNUM <= ");
int?skipNumber = q.SkipNumber;
skipNumber = q.TakeNumber;
this.sb.Append((int)((skipNumber.HasValue ? skipNumber.GetValueOrDefault() : 0) + (skipNumber.HasValue ? skipNumber.GetValueOrDefault() : 0)));
}
}
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));
}
private void ViewQuery_Null_Null(LiteQuery q)
{
this.sb.Append("SELECT ");
this.VisitSelectFields(q);
this.sb.Append(" FROM ");
this.VisitTableSource(q.TableSource);
if ((q.Filter != null) && (q.Filter.GetRealNodeCount() > 0))
{
this.sb.Append(" WHERE ");
this.VisitFilter(q.Filter);
}
if (q.GroupByList.Count > 0)
{
this.sb.Append(" GROUP BY ");
this.VisitGroupByList(q);
}
if (q.Orders.Count > 0)
{
this.sb.Append(" ORDER BY ");
this.VisitOrderList(q);
}
}
private void VisitQuery_Skip_Take(LiteQuery q)
{
this.sb.Append("SELECT ");
int num = -1;
foreach (LiteField field in q.SelectFields)
{
num++;
if (num > 0)
{
this.sb.Append(",");
}
this.sb.Append(" a.");
this.sb.Append(field.FieldAlias);
}
this.sb.Append(" FROM (");
this.VisitQuery_Null_Take(q);
this.sb.Append(") a WHERE a.").Append(ROWNUM).Append(" > ");
int?skipNumber = q.SkipNumber;
this.sb.Append(skipNumber.HasValue ? skipNumber.GetValueOrDefault() : 0);
}
protected void AddExtendFilterAndOrder(LiteQuery q)
{
this.AddExtendFilter(q);
this.AddExtendOrder(q);
}
internal static ILiteVisitor GetLiteVisitor(DatabaseTypeEnum dbType, LiteQuery q)
{
return(liteVisitorDict[dbType](q));
}
private void VisitSubQuery(LiteQuery q)
{
this.VisitQuery(q);
}
private void VisitQuery(LiteQuery q)
{
int? takeNumber;
bool flag = this.NeedRowNumber(q);
if (flag)
{
this.sb.Append(" WITH a AS ( SELECT ");
this.sb.Append(" ROW_NUMBER() ");
if (q.Orders.Count <= 0)
{
throw new ApplicationException("必须提供排序");
}
this.sb.Append(" OVER ( ORDER BY ");
this.VisitOrderList(q);
this.sb.Append(") ");
this.sb.Append(" AS __row_number__ ,");
}
else
{
this.sb.Append(" SELECT ");
if (q.TakeNumber.HasValue)
{
this.sb.Append(" TOP ");
takeNumber = q.TakeNumber;
this.sb.Append(takeNumber.HasValue ? takeNumber.GetValueOrDefault() : 0);
this.sb.Append(" ");
}
}
if (q.Distinct)
{
}
this.VisitSelectFields(q);
this.sb.Append(" FROM ");
this.VisitTableSource(q.TableSource);
if ((q.Filter != null) && (q.Filter.GetRealNodeCount() > 0))
{
this.sb.Append(" WHERE ");
this.VisitFilter(q.Filter);
}
if (q.GroupByList.Count > 0)
{
this.sb.Append(" GROUP BY ");
this.VisitGroupByList(q);
}
if (flag)
{
this.sb.Append(" ) select ");
int num = -1;
foreach (LiteField field in q.SelectFields)
{
num++;
if (num > 0)
{
this.sb.Append(",");
}
this.sb.Append("a.[");
this.sb.Append(field.FieldAlias);
this.sb.Append("]");
}
this.sb.Append(" from a WHERE __row_number__ ");
if (q.TakeNumber.HasValue && (q.TakeNumber.Value > 0))
{
this.sb.Append(" BETWEEN ");
takeNumber = q.SkipNumber;
this.sb.Append((int)((takeNumber.HasValue ? takeNumber.GetValueOrDefault() : 0) + 1));
this.sb.Append(" AND ");
takeNumber = q.SkipNumber;
takeNumber = q.TakeNumber;
this.sb.Append((int)((takeNumber.HasValue ? takeNumber.GetValueOrDefault() : 0) + (takeNumber.HasValue ? takeNumber.GetValueOrDefault() : 0)));
}
else
{
this.sb.Append(" > ");
takeNumber = q.SkipNumber;
this.sb.Append(takeNumber.HasValue ? takeNumber.GetValueOrDefault() : 0);
}
}
else if (q.Orders.Count > 0)
{
this.sb.Append(" ORDER BY ");
this.VisitOrderList(q);
}
}
public DataTable ExecuteLiteQuery(LiteQuery q)
{
string sql = DatabaseFactory.GetLiteVisitor(this._databaseType, q).Visit();
return(this.ExecuteDataTable(sql, new DbParameter[0]));
}
public OracleVisitor(LiteQuery query)
{
this._query = query;
}
protected void AddFilterForPrevilege(LiteQuery q)
{
}
public SqlVisitor(LiteQuery query)
{
this._query = query;
}
protected void AddFilterForShared(LiteQuery q)
{
}
private bool NeedRowNumber(LiteQuery q)
{
int?skipNumber = q.SkipNumber;
return((skipNumber.HasValue ? skipNumber.GetValueOrDefault() : 0) > 0);
}