private string GetFrom()
{
if (schema.SelectCommand.CommandType == CommandType.TableDirect)
{
return(schema.SelectCommand.CommandText);
}
else if (schema.SelectCommand.CommandType == CommandType.StoredProcedure)
{
throw new E_SQLBuilder_NoSelectCommand();
}
else if (string.IsNullOrEmpty(schema.SelectCommand.CommandText))
{
throw new E_SQLBuilder_NoSelectCommand();
}
SqlParse sql = new SqlParse(schema.SelectCommand.CommandText);
return(sql.GetFrom());
}
/// <summary>
/// 根据CommandSchema创建命令，并将Shema中的参数设置到命令
/// </summary>
/// <param name="cmdSchema">命令配置</param>
/// <returns></returns>
public DbCommand getCommand(CommandSchema cmdSchema)
{
if (cmdSchema == null || string.IsNullOrEmpty(cmdSchema.CommandText))
{
throw new XException(Lang.NoUpLoadCommand);
}
DbCommand cmd = dbAdmin.getSqlCommand(cmdSchema.CommandText, cmdSchema.CommandType);
SqlParse sqlp = new SqlParse(cmdSchema.CommandText);
string[] parameters = sqlp.GetParamNames();
foreach (string pName in parameters)
{
string fName = pName.Remove(0, 1);
string val = null;
DbType pType = DbType.String;
ParameterDirection pDir = ParameterDirection.Input;
ParameterSchema ps = cmdSchema.QueryParams == null ? null : cmdSchema.QueryParams.FindItem(pName);
FieldSchema flds = schema.Fields == null ? null : schema.Fields.FindItem(fName);
if (pName.StartsWith(XSqlBuilder.OLD_VERSION_PIX))
{
flds = schema.Fields.FindItem(fName.Remove(0, XSqlBuilder.OLD_VERSION_PIX.Length));
}
//获取字典定义中的参数类型，参数方向默认为input
if (flds != null)
{
pType = flds.DataType;
}
//获取参数定义中的参数类型,及参数方向;
if (ps != null)
{
pType = ps.DataType;
val = ps.DefaultValue;
pDir = ps.Direction;
}
//if (row.ContainsKey(fName))
// val = row[fName];
//if (realParams.ContainsKey(pName))
// val = realParams[pName];
switch (pDir)
{
case ParameterDirection.Input:
dbAdmin.addInParameter(cmd, pName, pType, val);
break;
case ParameterDirection.InputOutput:
break;
case ParameterDirection.Output:
dbAdmin.AddOutParameter(cmd, pName, pType, int.MaxValue);
break;
}
}
return(cmd);
}
private DbCommand getSelectCommand(int pageSize, int pageNo, string fields, Dictionary <string, string> queryParams, string where, string orderBy, string groupBy)
{
string connectionName = _schema.ConnectionName;
string selectSql;
// tableNames = new List<string>();
DbCommand cmd = null;
switch (_schema.SelectCommand.CommandType)
{
case CommandType.TableDirect:
if (pageNo > 1 || pageSize > 1)
{
cmd = getPagingSpCommand(_schema.SelectCommand.CommandText, pageSize, pageNo, fields, where, orderBy, groupBy);
}
if (cmd == null)
{
selectSql = XSqlBuilder.BuildTableSql(_schema.SelectCommand.CommandText, pageSize, pageNo, fields, where, orderBy, groupBy);
cmd = dbAdmin.getSqlStringCommand(selectSql);
}
else
{
_schema.IsPagingByParams = true;
}
break;
case CommandType.Text:
selectSql = _schema.SelectCommand.CommandText;
SqlParse xSql = new SqlParse(selectSql);
cmd = dbAdmin.getSqlStringCommand(selectSql);
// paramNames = xSql.GetParamNames();
break;
case CommandType.StoredProcedure:
selectSql = _schema.SelectCommand.CommandText;
cmd = dbAdmin.GetStoredProcCommandWithSourceColumns(selectSql, fields.Split(','));
break;
}
if (_schema.SelectCommand != null && _schema.SelectCommand.QueryParams != null)
{
foreach (ParameterSchema ps in _schema.SelectCommand.QueryParams)
{
if (string.IsNullOrEmpty(ps.Id))
{
continue;
}
string name = ps.Id;
object value = ps.DefaultValue;
if (queryParams != null && queryParams.ContainsKey(name))
{
value = queryParams[name];
}
//if (name.Equals(DataSourceConst.PagingPageNo, StringComparison.OrdinalIgnoreCase))
// value = pageNo;
//if (name.Equals(DataSourceConst.PagingPageSize, StringComparison.OrdinalIgnoreCase))
// value = pageSize;
if (cmd.Parameters.Contains(name))
{
dbAdmin.Database.SetParameterValue(cmd, name, value);
}
else if (ps.Direction == ParameterDirection.Input)
{
dbAdmin.addInParameter(cmd, name, ps.DataType, value);
}
else
{
dbAdmin.AddOutParameter(cmd, name, ps.DataType, ps.DataSize);
}
}
}
return(cmd);
}
