public string Updatet <T>(T t) where T : BaseEntity
{
StringBuilder sb = new StringBuilder();
PropertyInfo[] propertiesArr = t.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
sb.AppendFormat("update {0}{1}{2} set ", ColumnBeginChar, t.__TableName, ColumnEndChar);
int i = 0;
foreach (PropertyInfo pi in propertiesArr)
{
SqlParamModel spm = new SqlParamModel()
{
Type = pi.PropertyType,
Value = pi.GetValue(t, null)
};
paramValsDic.Add(ParamPrefix + pi.Name, spm);
i++;
if (t.__IdentityKeys.Contains(pi.Name))
{
continue;
}
if (i != propertiesArr.Length)
{
sb.AppendFormat("{0}{1}{2}={3}{1},", ColumnBeginChar, pi.Name, ColumnEndChar, ParamPrefix, pi.Name);
}
else
{
sb.AppendFormat("{0}{1}{2}={3}{1} ", ColumnBeginChar, pi.Name, ColumnEndChar, ParamPrefix, pi.Name);
}
}
sb.Append(" where ");
i = 0;
foreach (string primary in t.__PrimaryKeys)
{
// paramValsDic[primary].BuildValueFormat()
i++;
if (i != t.__PrimaryKeys.Count)
{
sb.AppendFormat("{1}{0}{2}={3}{0} and ", primary, ColumnBeginChar, ColumnEndChar, ParamPrefix);
}
else
{
sb.AppendFormat("{1}{0}{2}={3}{0} ", primary, ColumnBeginChar, ColumnEndChar, ParamPrefix);
}
}
if (i == 0)
{
throw new ArgumentException("未设置主键不能使用此更新方式！");
}
return(sb.ToString());
}
public string CreateUpdateSql(T t)
{
StringBuilder sb = new StringBuilder();
PropertyInfo[] propertiesArr = t.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
sb.AppendFormat("update {0}{1}{2} set ", ColumnBeginChar, t.__TableName, ColumnEndChar);
int i = 0;
foreach (PropertyInfo pi in propertiesArr)
{
i++;
if (t.__IdentityKeys.Contains(pi.Name))
{
continue;
}
if (i != propertiesArr.Length)
{
sb.AppendFormat("{0}{1}{2}={3}{1},", ColumnBeginChar, pi.Name, ColumnEndChar, ParamPrefix, pi.Name);
}
else
{
sb.AppendFormat("{0}{1}{2}={3}{1} ", ColumnBeginChar, pi.Name, ColumnEndChar, ParamPrefix, pi.Name);
}
SqlParamModel spm = new SqlParamModel()
{
Type = pi.GetType(),
Value = pi.GetValue(t, null)
};
paramValsDic.Add(ParamPrefix + pi.Name, spm);
}
sb.Append(" where ");
i = 0;
foreach (string primary in t.__PrimaryKeys)
{
i++;
if (i != t.__PrimaryKeys.Count)
{
sb.AppendFormat("{2}{0}{3}={1} and ", primary, paramValsDic[primary].BuildValueFormat(), ColumnBeginChar, ColumnEndChar);
}
else
{
sb.AppendFormat("{2}{0}{3}={1} ", primary, paramValsDic[primary].BuildValueFormat(), ColumnBeginChar, ColumnEndChar);
}
}
return(sb.ToString());
}
