/// <summary>
/// 建立主檔與明細關連。
/// </summary>
/// <param name="provider">資料表關連資訊提供者。</param>
/// <param name="detailTableName">明細資料表名稱。</param>
private void BuildDetailTableJoin(GTableJoinProvider provider, string detailTableName)
{
// 建立資料表關連
var oTableJoin = new GTableJoin
{
Key = "Detail",
LeftTableAlias = "A",
LeftFieldName = SysFields.ID,
RightTableName = detailTableName,
RightTableAlias = "DA",
RightFieldName = SysFields.MasterID
};
provider.TableJoins.Add(oTableJoin);
}
/// <summary>
/// 建立資料表關連。
/// </summary>
/// <param name="key">關連鍵值。</param>
/// <param name="provider">資料表關連資訊提供者。</param>
/// <param name="fieldDefine">關連欄位定義。</param>
/// <param name="returnFields">關連取回欄位集合。</param>
/// <param name="leftTableAlias">左側資料表別名。</param>
/// <param name="detailTableName">明細資料表名稱。</param>
/// <param name="destFieldName">目的欄位名稱。</param>
private void BuildTableJoin(string key, GTableJoinProvider provider, GFieldDefine fieldDefine, GStringHashSet returnFields, string leftTableAlias, string detailTableName, string destFieldName = "")
{
// 取得關連程式定義
var programDefine = CacheFunc.GetProgramDefine(fieldDefine.LinkProgID);
if (BaseFunc.IsNull(programDefine))
{
throw new GException("'{0}' ProgramDefine not found", fieldDefine.LinkProgID);
}
// 取得關連資料表定義
var tableDefine = programDefine.MasterTable;
foreach (string fieldName in returnFields)
{
var linkReturnField = fieldDefine.LinkReturnFields.FindByDestField(fieldName);
if (BaseFunc.IsNull(linkReturnField))
{
throw new GException("'{0}' FieldDefine's LinkReturnFields not find DestField '{1}'", fieldDefine.FieldName, fieldName);
}
var sourceFieldDefine = tableDefine.Fields[linkReturnField.SourceField];
if (BaseFunc.IsNull(sourceFieldDefine))
{
throw new GException("'{0}' TableDefine not find '{1}' FieldDefine", tableDefine.TableName, linkReturnField.SourceField);
}
if (sourceFieldDefine.FieldType == EFieldType.VirtualField)
{
throw new GException("'{0}' TableDefine's '{1}' FieldDefine not allow VirtualField", tableDefine.TableName, sourceFieldDefine.FieldName);
}
var tableJoin = provider.TableJoins[key];
if (BaseFunc.IsNull(tableJoin))
{
// 建立資料表關連
tableJoin = new GTableJoin
{
Key = key,
LeftTableAlias = leftTableAlias,
LeftFieldName = tableDefine.GetLinkReturnActiveField(fieldDefine).DbFieldName,
RightTableName = tableDefine.DbTableName,
RightTableAlias = GetActiveTableAlias()
};
var sKeyField = tableDefine.Fields.Contains(SysFields.ID) ? SysFields.ID : SysFields.RowID;
tableJoin.RightFieldName = tableDefine.Fields[sKeyField].DbFieldName;
if (tableDefine.Fields.Contains(SysFields.CompanyID))
{
tableJoin.RightCompanyID = tableDefine.Fields[SysFields.CompanyID].DbFieldName;
}
else if (tableDefine.Fields.Contains(SysFields.CommonCompanyID))
{
tableJoin.RightCompanyID = tableDefine.Fields[SysFields.CommonCompanyID].DbFieldName;
}
provider.TableJoins.Add(tableJoin);
}
// 若來源欄位的欄位類型是 LinkField，則需往上階找關連來源
if (sourceFieldDefine.FieldType == EFieldType.LinkField)
{
var linkFieldDefine = tableDefine.GetLinkReturnActiveField(sourceFieldDefine);
var sKey = key + "." + linkFieldDefine.LinkProgID;
var returnFieldSet = new GStringHashSet {
sourceFieldDefine.DbFieldName
};
BuildTableJoin(sKey, provider, linkFieldDefine, returnFieldSet, tableJoin.RightTableAlias, detailTableName, fieldName);
}
else
{
// 記錄關連欄位對應
var linkFieldMapping = new GLinkFieldMapping();
linkFieldMapping.FieldName = (StrFunc.StrIsNotEmpty(destFieldName)) ? destFieldName : fieldName;
if (StrFunc.StrIsNotEmpty(detailTableName))
{
linkFieldMapping.FieldName = StrFunc.StrFormat("{0}.{1}", detailTableName, linkFieldMapping.FieldName);
}
linkFieldMapping.TableAlias = tableJoin.RightTableAlias;
linkFieldMapping.SourceFieldName = sourceFieldDefine.DbFieldName;
provider.Mappings.Add(linkFieldMapping);
}
}
}
