internal static string GetLayer(TableResolver resolver, DbTreeDefinition tree, string parentId)
{
TkDbContext context = resolver.Context;
IFieldInfo layerField = resolver.GetFieldInfo(tree.LayerField);
IParamBuilder fixBuilder = resolver.CreateFixCondition();
string execRootId = tree.ExecuteRootId;
if (execRootId == parentId)
{
string subStringSql = context.ContextConfig.GetFunction("SubString",
layerField.FieldName, 1, 3);
string sql = string.Format(ObjectUtil.SysCulture,
"SELECT MAX({0}) FROM {1}", subStringSql, resolver.TableName);
string value = (fixBuilder == null ? DbUtil.ExecuteScalar(sql, context)
: DbUtil.ExecuteScalar(sql, context, fixBuilder)).ToString();
if (string.IsNullOrEmpty(value))
{
return("000");
}
else
{
return(AddLayer(value));
}
}
else
{
try
{
string sql = string.Format(ObjectUtil.SysCulture, "SELECT {0} FROM {1}",
layerField.FieldName, resolver.TableName);
IParamBuilder builder = ParamBuilder.CreateParamBuilder(fixBuilder,
SqlParamBuilder.CreateEqualSql(context, resolver.GetFieldInfo(tree.IdField), parentId));
string topLayer = DbUtil.ExecuteScalar(sql, context, builder).ToString();
string subStringSql = context.ContextConfig.GetFunction("SubString",
layerField.FieldName, topLayer.Length + 1, 3);
builder = CreateLayerParamBuilder(context, layerField, topLayer);
builder = SqlParamBuilder.CreateParamBuilder(fixBuilder, builder);
sql = string.Format(ObjectUtil.SysCulture, "SELECT MAX({0}) FROM {1}",
subStringSql, resolver.TableName);
string value = DbUtil.ExecuteScalar(sql, context, builder).ToString().Trim();
if (string.IsNullOrEmpty(value))
{
DataRow parentRow = resolver.SelectRowWithParam(tree.IdField, parentId);
parentRow[tree.LeafField] = 0;
resolver.SetCommands(AdapterCommand.Update);
return(topLayer + "000");
}
else
{
return(topLayer + AddLayer(value.Substring(value.Length - 3)));
}
}
catch
{
return(string.Empty);
}
}
}
internal static void SortTree(TableResolver resolver, DbTreeDefinition tree,
string id, TreeNodeMoveDirection direct)
{
TkDebug.AssertArgumentNull(resolver, "resolver", null);
TkDebug.AssertArgumentNull(tree, "tree", null);
TkDebug.AssertArgumentNullOrEmpty(id, "id", null);
IParamBuilder fixBuilder = resolver.CreateFixCondition();
IParamBuilder builder = ParamBuilder.CreateParamBuilder(fixBuilder,
SqlParamBuilder.CreateEqualSql(resolver.Context, resolver.GetFieldInfo(tree.IdField), id));
IFieldInfo layerField = resolver.GetFieldInfo(tree.LayerField);
string sql = string.Format(ObjectUtil.SysCulture, "SELECT {0} FROM {1}",
layerField.FieldName, resolver.TableName);
string layer = DbUtil.ExecuteScalar(sql, resolver.Context, builder).ToString();
string parentLayer = layer.Substring(0, layer.Length - 3);
resolver.SetCommands(AdapterCommand.Update);
builder = SqlParamBuilder.CreateSingleSql(resolver.Context, layerField, "LIKE", parentLayer + "___");
resolver.Select(builder, "ORDER BY " + layerField.FieldName);
if (resolver.HostTable == null || resolver.HostTable.Rows.Count == 0)
{
return;
}
int rowNum = GetRowNum(resolver.HostTable, tree.IdField, id);
if (rowNum == -1)
{
return;
}
//根据移动方向，执行不同操作
switch (direct)
{
case TreeNodeMoveDirection.Up:
if (rowNum == 0) //已经最前，不能向上移动
{
return;
}
SwapLayer(resolver, tree, rowNum, rowNum - 1);
break;
case TreeNodeMoveDirection.Down:
if (rowNum == resolver.HostTable.Rows.Count - 1) //已经最后，不能向下移动
{
return;
}
SwapLayer(resolver, tree, rowNum, rowNum + 1);
break;
}
}
internal static void MoveTree(TableResolver resolver, DbTreeDefinition tree, string sourceId, string destId)
{
TkDebug.AssertArgumentNull(resolver, "resolver", null);
TkDebug.AssertArgumentNull(tree, "tree", null);
TkDebug.AssertArgumentNullOrEmpty(sourceId, "sourceId", null);
TkDebug.AssertArgumentNullOrEmpty(destId, "destId", null);
IFieldInfo layerField = resolver.GetFieldInfo(tree.LayerField);
string sql = string.Format(ObjectUtil.SysCulture, "SELECT {0} FROM {1}",
layerField.FieldName, resolver.TableName);
IParamBuilder builder = ParamBuilder.CreateParamBuilder(resolver.CreateFixCondition(),
SqlParamBuilder.CreateEqualSql(resolver.Context, resolver.GetFieldInfo(tree.IdField), destId));
string destLayer = DbUtil.ExecuteScalar(sql, resolver.Context, builder).ToString();
DataRow srcRow = resolver.SelectRowWithParam(tree.IdField, sourceId);
if (destId == srcRow[tree.ParentIdField].ToString())
{
//throw new InvalidMoveException();
}
string oldLayer = srcRow[tree.LayerField].ToString();
if (destLayer.StartsWith(oldLayer, StringComparison.Ordinal))
{
//throw new InvalidMoveException();
}
resolver.SetCommands(AdapterCommand.Update);
string newLayer = GetLayer(resolver, tree, destId);
srcRow[tree.LayerField] = newLayer;
DataTable table = resolver.HostTable;
int currentCount = table.Rows.Count;
builder = CreateLayerParamBuilder(resolver.Context, layerField, oldLayer);
resolver.Select(builder);
for (int i = currentCount; i < table.Rows.Count; ++i)
{
DataRow row = table.Rows[i];
row[tree.LayerField] = row[tree.LayerField].ToString().Replace(
oldLayer, newLayer);
}
SetParentLeaf(resolver, tree, srcRow[tree.ParentIdField].ToString());
srcRow[tree.ParentIdField] = destId;
}
public void Switch(TableResolver resolver, DataRow row)
{
TkDebug.AssertArgumentNull(resolver, "resolver", null);
TkDebug.AssertArgumentNull(row, "row", null);
object value = row[NickName];
row.BeginEdit();
try
{
if (value == DBNull.Value)
{
switch (NullValueProcess)
{
case SwitchNullProcessMethod.OpenValue:
row[NickName] = OpenValue;
break;
case SwitchNullProcessMethod.ThrowException:
throw new WebPostException(ErrorMessage);
}
}
else if (value.ToString() == OpenValue)
{
row[NickName] = CloseValue;
}
else
{
row[NickName] = OpenValue;
}
if (UpdateTrackField)
{
resolver.UpdateTrackField(UpdateKind.Update, row);
}
}
finally
{
row.EndEdit();
}
resolver.SetCommands(AdapterCommand.Update);
resolver.UpdateDatabase();
}
internal static void DeleteTree(TableResolver resolver, DbTreeDefinition tree, string id, IInputData inputData)
{
TkDebug.AssertArgumentNull(resolver, "resolver", null);
TkDebug.AssertArgumentNull(tree, "tree", null);
TkDebug.AssertArgumentNullOrEmpty(id, "id", null);
DataRow row = null;
if (resolver.HostTable != null)
{
row = resolver.HostTable.Select(string.Format(ObjectUtil.SysCulture, "{0} = '{1}'",
tree.IdField, id))[0];
}
else
{
row = resolver.SelectRowWithParam(tree.IdField, id);
}
resolver.SetCommands(AdapterCommand.Update | AdapterCommand.Delete);
DataTable table = resolver.HostTable;
int currentCount = table.Rows.Count;
IFieldInfo layerField = resolver.GetFieldInfo(tree.LayerField);
IParamBuilder builder = CreateLayerParamBuilder(resolver.Context, layerField,
row[tree.LayerField].ToString());
resolver.Select(builder);
for (int i = currentCount; i < table.Rows.Count; ++i)
{
DataRow delRow = table.Rows[i];
resolver.DeleteRow(delRow, UpdateKind.Delete, null, inputData);
}
SetParentLeaf(resolver, tree, row[tree.ParentIdField].ToString());
resolver.DeleteRow(row, UpdateKind.Delete, null, inputData);
}