/// <summary>
/// 设置UpdateSql的更新数据列。
/// </summary>
/// <param name="updateSql">UpdateSql对象。</param>
/// <param name="context">Sql构造上下文信息。</param>
protected virtual void HandlingUpdateFields(UpdateSqlStatement updateSql, SqlBuildingContext context)
{
var dataContext = context.DataContext.GetCurrentDataContextItem(context.Node.ID);
if (dataContext == null || dataContext.Data == null || dataContext.Data.Count == 0)
{
updateSql = null;
return;
}
if (updateSql.SqlBuildingInfo.CurrentSqlTable == null)
{
var tableName = context.TableName;
updateSql.SqlBuildingInfo.CurrentSqlTable =
base.TryFindAndRegistSqlTable(tableName, tableName, tableName, tableName, updateSql.SqlBuildingInfo);
}
foreach (string dataItem in dataContext.Data.Keys)
{
var updateElement = context.Node.Elements.FirstOrDefault(i => i.ID == dataItem);
var updateColumn = context.DataObject.Columns.FirstOrDefault(i => i.ID == updateElement.ID);
//字段设置
var field = new UpdateField();
field.IsUseFieldPrefix = false;
field.IsUseVarBinding = true;
field.Table = updateSql.SqlBuildingInfo.CurrentSqlTable;
field.FieldName = updateColumn.ColumnName;
updateSql.UpdateFields.ChildCollection.Add(field);
//字段值设置
var fieldValue = new UpdateValue();
fieldValue.Value = dataContext.Data[dataItem];
updateSql.UpdateValues.ChildCollection.Add(fieldValue);
}
}
public override void ToXml(SqlElement sqlElement, XmlElement xmlParent)
{
base.ToXml(sqlElement, xmlParent);
UpdateSqlStatement updateSql = sqlElement as UpdateSqlStatement;
XmlElement xmlUpdateFields = SerializerUtil.AddElement(xmlParent, UpdateFieldList.UPDATEFIELDLIST);
updateSql.UpdateFields.ToXml(updateSql.UpdateFields, xmlUpdateFields);
XmlElement xmlUpdateCondition = SerializerUtil.AddElement(xmlParent, UPDATECONDITION);
updateSql.UpdateCondition.ToXml(updateSql.UpdateCondition, xmlUpdateCondition);
}
public override void FromXml(SqlElement sqlElement, XmlElement xmlParent, XmlNamespaceManager xnm)
{
base.FromXml(sqlElement, xmlParent, xnm);
UpdateSqlStatement updateSql = sqlElement as UpdateSqlStatement;
ParserUtil util = new ParserUtil(xnm);
XmlElement xmlUpdateFields = util.Child(xmlParent, UpdateFieldList.UPDATEFIELDLIST);
updateSql.UpdateFields.FromXml(updateSql.UpdateFields, xmlUpdateFields, xnm);
XmlElement xmlUpdateCondition = util.Child(xmlParent, UPDATECONDITION);
updateSql.UpdateCondition.FromXml(updateSql.UpdateCondition, xmlUpdateCondition, xnm);
}
/// <summary>
/// 解析外部传入的过滤条件。
/// </summary>
/// <param name="context">SQL构造上下文信息。</param>
/// <param name="currentObject">主键过滤条件对应的GSPNode。</param>
/// <param name="dataObject">主键过滤条件对应的GSPDataTable。</param>
/// <param name="sqlInfo">SQL拼装的中间变量。</param>
/// <returns>解析后的过滤条件。</returns>
protected void GetUpdateSqlCondition(UpdateSqlStatement sql, SqlBuildingContext context, DomainObject currentObject, DataObject dataObject)
{
//若是非主键形式条件定义。
if (context.IsUseCondition)
{
var condition = this.GetOrdinaryCondition(context, sql.SqlBuildingInfo);
if (condition != null)
{
sql.UpdateCondition.ChildCollection.Add(condition);
}
}
//若是根据主键值，则获取主键值条件Sql语句。
var sqlPrimaryKey = this.GetPrimaryKeyCondition(context, currentObject, dataObject, sql.SqlBuildingInfo);
if (sqlPrimaryKey != null)
{
sql.UpdateCondition.ChildCollection.Add(sqlPrimaryKey);
}
}
/// <summary>
/// 构造UpdateSql的过滤条件。
/// </summary>
/// <param name="sql">Sql语句对象。</param>
/// <param name="context">Sql构造上下文信息。</param>
private void HandlingConditionInfoAddData(UpdateSqlStatement sql, SqlBuildingContext context)
{
base.GetUpdateSqlCondition(sql, context, context.Node, context.DataObject);
}
