private void ParseSelect(string selectClause)
{
//Parse fields
var selectList = selectClause.Substring(7, selectClause.Length - 7).Split(',');
foreach (string rawField in selectList)
{
var s = rawField.Trim();
//Get Table
var index = s.IndexOf("]");
var table = s.Substring(0, index + 1);
s = s.Substring(table.Length + 1, s.Length - table.Length - 1);
//Get Name
index = s.IndexOf("]");
var field = s.Substring(0, index + 1);
//Get Alias
var alias = field;
bool hasAlias = false;
if (s.Length > field.Length)
{
alias = s.Substring(field.Length + 4, s.Length - field.Length - 4);
hasAlias = true;
}
if (!hasAlias)
{
LinqSQLFromClause clause = _fromLinkList.FirstOrDefault(x => x.Alias == table.Replace("[", string.Empty).Replace("]", string.Empty));
switch (clause.TableName)
{
case "ConfigSetting": alias = Gravitybox.gFileSystem.EFDAL.Entity.ConfigSetting.GetFieldAliasFromFieldNameSqlMapping(field); break;
case "Container": alias = Gravitybox.gFileSystem.EFDAL.Entity.Container.GetFieldAliasFromFieldNameSqlMapping(field); break;
case "FileStash": alias = Gravitybox.gFileSystem.EFDAL.Entity.FileStash.GetFieldAliasFromFieldNameSqlMapping(field); break;
case "Tenant": alias = Gravitybox.gFileSystem.EFDAL.Entity.Tenant.GetFieldAliasFromFieldNameSqlMapping(field); break;
}
}
this.FieldList.Add(new LinqSQLField(field, alias, table));
}
}
public static string GetRemappedLinqSql(LinqSQLFromClause tableInfo, string whereClause, LinqSQLFromClauseCollection fromLinkList, ObjectTypeConstants type)
{
if (type == ObjectTypeConstants.Table)
{
switch (tableInfo.TableName)
{
case "ConfigSetting": return(Gravitybox.gFileSystem.EFDAL.Entity.ConfigSetting.GetRemappedLinqSql(whereClause, tableInfo.Alias, fromLinkList));
case "Container": return(Gravitybox.gFileSystem.EFDAL.Entity.Container.GetRemappedLinqSql(whereClause, tableInfo.Alias, fromLinkList));
case "FileStash": return(Gravitybox.gFileSystem.EFDAL.Entity.FileStash.GetRemappedLinqSql(whereClause, tableInfo.Alias, fromLinkList));
case "Tenant": return(Gravitybox.gFileSystem.EFDAL.Entity.Tenant.GetRemappedLinqSql(whereClause, tableInfo.Alias, fromLinkList));
}
}
if (type == ObjectTypeConstants.View)
{
}
if (type == ObjectTypeConstants.StoredProcedure)
{
}
throw new Exception("Table not found '" + tableInfo.TableName + "'.");
}
private void RemapParentChild()
{
//Include all base tables
LinqSQLFromClauseCollection childTables = new LinqSQLFromClauseCollection();
foreach (var fromClause in _fromLinkList)
{
//Do all field replacements
if (_type == ObjectTypeConstants.Table)
{
if (fromClause.TableName == "ConfigSetting")
{
childTables.Add(fromClause);
}
if (fromClause.TableName == "Container")
{
childTables.Add(fromClause);
}
if (fromClause.TableName == "FileStash")
{
childTables.Add(fromClause);
}
if (fromClause.TableName == "Tenant")
{
childTables.Add(fromClause);
}
}
if (_type == ObjectTypeConstants.View)
{
}
}
_fromLinkList.Clear();
_fromLinkList.AddRange(childTables);
//Process the FROM clause
_fromLinkList.RemapFromClause();
//Now map the columns to the proper tables
foreach (var field in this.FieldList)
{
LinqSQLFromClause clause = _fromLinkList.FirstOrDefault(x => x.Alias == field.Table);
string realTable = string.Empty;
if (_type == ObjectTypeConstants.Table)
{
if (clause.TableName == "ConfigSetting")
{
realTable = Gravitybox.gFileSystem.EFDAL.Entity.ConfigSetting.GetTableFromFieldAliasSqlMapping(field.Alias);
}
else if (clause.TableName == "Container")
{
realTable = Gravitybox.gFileSystem.EFDAL.Entity.Container.GetTableFromFieldAliasSqlMapping(field.Alias);
}
else if (clause.TableName == "FileStash")
{
realTable = Gravitybox.gFileSystem.EFDAL.Entity.FileStash.GetTableFromFieldAliasSqlMapping(field.Alias);
}
else if (clause.TableName == "Tenant")
{
realTable = Gravitybox.gFileSystem.EFDAL.Entity.Tenant.GetTableFromFieldAliasSqlMapping(field.Alias);
}
}
var sqlFromClause = _fromLinkList.GetByTable(realTable);
field.Table = sqlFromClause.Alias;
}
//Calculate the WHERE clause
if (!string.IsNullOrEmpty(_whereClause))
{
foreach (var fromClause in _fromLinkList)
{
//Only process table that were original and not inserted above
if (fromClause.AnchorAlias == string.Empty)
{
_whereClause = GetRemappedLinqSql(fromClause, _whereClause, _fromLinkList, _type);
}
}
}
}
