public override JObject read(string table, string fields, SqlParam[] where)
{
//加载结构
this.m_table = this.table(table);
var field_all = this.m_table.SelectToken("fields");
var field_sel = this.selFields(fields, field_all);
var field_cdt = this.selFields(where, field_all);
JObject o = null;
string sql = string.Format("select {0} from {1} where {2}"
, this.selFieldNames(field_sel)
, table
, this.toSqlCondition(where, "and"));
DbHelper db = new DbHelper();
var cmd = db.GetCommand(sql);
this.m_parSetter.setVal(cmd, field_cdt, where);
OracleCmdReader scr = new OracleCmdReader();
var r = db.ExecuteReader(cmd);
if (r.Read())
{
o = this.m_cmdRd.read(r, field_sel);
}
r.Close();
return(o);
}
public override JObject read(string table, string fields, string where)
{
//加载结构
this.m_table = this.table(table);
var field_all = this.m_table.SelectToken("fields");
var field_sel = this.selFields(fields, field_all);
if (!string.IsNullOrEmpty(where))
{
where = string.Format("where {0}", where);
}
JObject o = null;
string sql = string.Format("select {0} from {1} {2}"
, this.selFieldNames(field_sel)
, table
, where);
DbHelper db = new DbHelper();
var cmd = db.GetCommand(sql);
OracleCmdReader scr = new OracleCmdReader();
var r = db.ExecuteReader(cmd);
if (r.Read())
{
o = this.m_cmdRd.read(r, field_sel);
}
r.Close();
return(o);
}
public override JToken page2(string table, string primaryKey, string fields, int pageSize, int pageIndex, string where = "", string sort = "")
{
ConfigReader cr = new ConfigReader();
var database = cr.module(string.Format("database.{0}", table));
//加载结构
var table_fields = database.SelectToken("fields");
var fields_arr = fields.Split(',').ToList();
var field_sels = (from f in fields_arr
join tf in table_fields
on f equals tf["name"].ToString()
select tf).ToArray();
//选择所有字段
if (fields.Trim() == "*")
{
field_sels = table_fields.ToArray();
fields_arr = (from f in field_sels
select f["name"].ToString()).ToList();
fields = string.Join(",", fields_arr.ToArray());
}
int pageStart = (pageIndex - 1) * (pageSize - 1);
int pageEnd = (pageIndex - 1) * pageSize + pageSize;
string sql = string.Format("select * from (select rownum rn ,a.* from(select {0} from {1} where {2}) a where rownum <= {3} ) where rn >= {4}", fields, table, where, pageEnd, pageStart);
DbHelper db = new DbHelper();
var cmd = db.GetCommand(sql);
var r = db.ExecuteReader(cmd);
JArray a = new JArray();
OracleCmdReader scr = new OracleCmdReader();
while (r.Read())
{
int index = 1;//从1开始,0是行号
var o = new JObject();
foreach (var field in fields_arr)
{
var fd = field_sels[index - 1];
var fd_type = fd["type"].ToString().ToLower();
o[field] = scr[fd_type](r, index++);
}
a.Add(o);
}
r.Close();
return(JToken.FromObject(a));
}
