/// <summary>
/// get insert sql
/// </summary>
/// <param name="entity"></param>
/// <param name="parameters"></param>
public override String GetInsert(DbEntity entity, out IDbDataParameter[] parameters)
{
parameters = null;
var parameterList = new List <IDbDataParameter>(entity.GetInitializePropertyCount());
var filed = new StringBuilder();
var values = new StringBuilder();
//object property
Dictionary <string, object> .Enumerator etor = entity.GetEnumerator();
//Type type;
while (etor.MoveNext())
{
filed.Append("," + etor.Current.Key);
if (etor.Current.Value != null && etor.Current.Value is DateTime)
{
values.AppendFormat(",#{0}#", etor.Current.Value);
}
else
{
values.AppendFormat(",{0}{1}", Factory.ParameterChar, etor.Current.Key);
parameterList.Add(Factory.CreateParameter(etor.Current.Key, etor.Current.Value));
}
}
//remove comma
if (filed.Length > 0)
{
filed = filed.Remove(0, 1);
values = values.Remove(0, 1);
}
else
{
return(null);
}
return(string.Format("INSERT INTO {0} ({1}) VALUES ({2})", entity.GetTableName(), filed.ToString(), values.ToString()));
}
/// <summary>
/// get update sql
/// </summary>
/// <param name="where">更新条件</param>
/// <param name="update"></param>
/// <param name="parameters"></param>
public override String GetUpdate(DbEntity update, DbEntity where, out IDbDataParameter[] parameters)
{
parameters = null;
var parameterList = new List <IDbDataParameter>(update.GetInitializePropertyCount() + where.GetInitializePropertyCount());
StringBuilder build = new StringBuilder();
//object property
Dictionary <string, object> .Enumerator etor = update.GetEnumerator();
//Type type;
while (etor.MoveNext())
{
if (etor.Current.Value != null && etor.Current.Value is DateTime)
{
build.AppendFormat(",{0}=#{1}#", etor.Current.Key, etor.Current.Value);
}
else
{
build.AppendFormat(",{0}={1}{0}", etor.Current.Key, Factory.ParameterChar);
parameterList.Add(Factory.CreateParameter(etor.Current.Key, etor.Current.Value));
}
}
string result = null;
if (build.Length > 0)
{
IDbDataParameter[] whereParameters = null;
result = string.Format("UPDATE {0} SET {1}{2}", update.GetTableName(), build.Remove(0, 1).ToString(), this.GetWhere(where, out whereParameters));
if (whereParameters != null)
{
parameterList.AddRange(whereParameters);
}
}
parameters = parameterList.ToArray();
return(result);
}
/// <summary>
/// 返回一个数据对象
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="entity">查询对象</param>
public T GetRow <T>(DbEntity entity) where T : IDbEntity
{
IDbDataParameter[] parameters = null;
return(this.GetRow <T>(this.SqlBuilder.GetSelect(entity, "*", out parameters), false, parameters));
}
/// <summary>
/// 返回一个数据对象
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="entity">查询对象</param>
/// <param name="storedProcedure">要执行的存储过程名</param>
public T GetRow <T>(DbEntity entity, string storedProcedure) where T : IDbEntity
{
return(this.GetRow <T>(storedProcedure, true, this.CreateParameter(entity)));
}
/// <summary>
/// 获取指定对象的记录数
/// </summary>
/// <param name="entity">对象</param>
/// <param name="storedProcedure">要执行的存储过程名</param>
public virtual int GetCount(DbEntity entity, string storedProcedure)
{
return(Convert.ToInt32(this.GetScalar(storedProcedure, true, this.CreateParameter(entity))));
}
/// <summary>
/// 获取指定对象的记录数
/// </summary>
/// <param name="entity">对象</param>
public virtual int GetCount(DbEntity entity)
{
IDbDataParameter[] parameters = null;
entity.SetQuerySize(1);
return(Convert.ToInt32(GetScalar(this.SqlBuilder.GetSelect(entity, "COUNT(*)", out parameters), false, parameters)));
}
/// <summary>
/// 获取第一行第一列的数据
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="entity">对象</param>
/// <param name="storedProcedure">要执行的存储过程名</param>
public virtual T GetScalar <T>(DbEntity entity, string storedProcedure)
{
return((T)this.GetScalar(storedProcedure, true, this.CreateParameter(entity)));
}
/// <summary>
/// 获取第一行第一列的数据
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="entity">对象</param>
public virtual T GetScalar <T>(DbEntity entity)
{
return((T)this.GetScalar(entity));
}
/// <summary>
/// 获取第一行第一列的数据
/// </summary>
/// <param name="entity">对象</param>
public virtual Object GetScalar(DbEntity entity)
{
IDbDataParameter[] parameters = null;
return(GetScalar(this.SqlBuilder.GetSelect(entity, "*", out parameters), false, parameters));
}
/// <summary>
/// 返回一个数据表
/// </summary>
/// <param name="entity">数据对象</param>
/// <param name="storedProcedure">要执行的存储过程名</param>
public virtual DataTable GetDataTable(DbEntity entity, string storedProcedure)
{
return(this.GetDataTable(storedProcedure, true, this.CreateParameter(entity)));
}
/// <summary>
/// 返回一个数据表
/// </summary>
/// <param name="entity">数据对象</param>
public virtual DataTable GetDataTable(DbEntity entity)
{
IDbDataParameter[] parameters = null;
return(GetDataTable(this.SqlBuilder.GetSelect(entity, "*", out parameters), false, parameters));
}
/// <summary>
/// 执行数据对象修改
/// </summary>
/// <param name="update">数据对象</param>
/// <param name="where">条件对像</param>
public virtual int Update(DbEntity update, DbEntity where)
{
IDbDataParameter[] parameters = null;
return(Execute(this.SqlBuilder.GetUpdate(update, where, out parameters), false, parameters));
}
/// <summary>
/// 执行数据对象插入请求
/// </summary>
/// <param name="entity">数据对象</param>
public virtual int Insert(DbEntity entity)
{
IDbDataParameter[] parameters = null;
return(Execute(this.SqlBuilder.GetInsert(entity, out parameters), false, parameters));
}
/// <summary>
/// 执行一个语句或过程
/// </summary>
/// <param name="entity">实体</param>
/// <param name="storedProcedure">存储过程名</param>
/// <returns>受影响行数</returns>
public virtual int Execute(DbEntity entity, string storedProcedure)
{
return(this.Execute(storedProcedure, true, this.CreateParameter(entity)));
}
/// <summary>
/// get delete sql
/// </summary>
/// <param name="where">实体</param>
/// <param name="parameters"></param>
public virtual String GetDelete(DbEntity where, out IDbDataParameter[] parameters)
{
return(string.Format("DELETE FROM {0}{1}", where.GetTableName(), this.GetWhere(where, out parameters)));
}
