public string GetEntityName(BaseBOL obj)
{
Type t = obj.GetType();
var customAttributes = (HelpAttribute[])t.GetCustomAttributes(typeof(HelpAttribute), true);
if (customAttributes.Length > 0)
{
var myAttribute = customAttributes[0];
string value = myAttribute.HelpText;
// TODO: Do something with the value
return(value);
}
return(string.Empty);
}
protected string DeleteSQL(BaseBOL obj)
{
PropertyInfo[] propertyInfos;
Type t = obj.GetType();
propertyInfos = t.GetProperties();
// sort properties by name
Array.Sort(propertyInfos,
delegate(PropertyInfo propertyInfo1, PropertyInfo propertyInfo2)
{ return(propertyInfo1.Name.CompareTo(propertyInfo2.Name)); });
// write property names
bool primaryKeyFound = false;
StringBuilder sql = new StringBuilder();
sql.Append(@"DELETE FROM `" + GetEntityName(obj) + "` ");
sql.Append(" WHERE ");
foreach (PropertyInfo propertyInfo in propertyInfos)
{
if (propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true).Length > 0 &&
((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText == "PrimaryKey")
{
sql.Append("`" + propertyInfo.Name + "` = ");
primaryKeyFound = true;
}
// prop = prop + propertyInfo.Name + " , " + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + ", ";
if (propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true).Length > 0 &&
((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText == "PrimaryKey")
{
if (propertyInfo.PropertyType == typeof(string))
{
sql.Append("'" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "'");
}
else if (propertyInfo.PropertyType == typeof(DateTime))
{
sql.Append("STR_TO_DATE('" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "', '%c/%e/%Y %r')");
}
else
{
sql.Append("" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "");
}
}
if (primaryKeyFound)
{
break;
}
}
return(sql.ToString());
}
public bool Insert(BaseBOL obj)
{
//if (obj != null)
//{
// try
// {
// objBLL.InsertSQL(obj);
// return true;
// }
// catch
// {
// return false;
// }
//}
return(false);
}
protected string UpdateSQL(BaseBOL obj)
{
PropertyInfo[] propertyInfos;
Type t = obj.GetType();
propertyInfos = t.GetProperties();
// sort properties by name
Array.Sort(propertyInfos,
delegate(PropertyInfo propertyInfo1, PropertyInfo propertyInfo2)
{ return(propertyInfo1.Name.CompareTo(propertyInfo2.Name)); });
// write property names
StringBuilder sql = new StringBuilder();
sql.Append(@"UPDATE `" + GetEntityName(obj) + "` SET ");
foreach (PropertyInfo propertyInfo in propertyInfos)
{
if (propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true).Length <= 0 ||
(
(((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText != "PrimaryKey")
&&
(((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText != "Exclude")
)
)
{
sql.Append("`" + propertyInfo.Name + "` = ");
}
if (propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true).Length <= 0 ||
(
(((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText != "PrimaryKey")
&&
(((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText != "Exclude")
)
)
{
if (propertyInfo.PropertyType == typeof(string))
{
sql.Append("'" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "',");
}
else if (propertyInfo.PropertyType == typeof(DateTime))
{
sql.Append("STR_TO_DATE('" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "', '%c/%e/%Y %r'),");
}
else
{
sql.Append("" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + ",");
}
}
}
if (sql.Length > 0)
{
sql = sql.Remove(sql.Length - 1, 1);
}
sql.Append(" WHERE ");
foreach (PropertyInfo propertyInfo in propertyInfos)
{
if (propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true).Length > 0 &&
((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText == "PrimaryKey")
{
sql.Append("`" + propertyInfo.Name + "` = ");
}
// prop = prop + propertyInfo.Name + " , " + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + ", ";
if (propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true).Length > 0 &&
((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText == "PrimaryKey")
{
if (propertyInfo.PropertyType == typeof(string))
{
sql.Append("'" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "'");
}
else if (propertyInfo.PropertyType == typeof(DateTime))
{
sql.Append("STR_TO_DATE('" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "', '%c/%e/%Y %r')");
}
else
{
sql.Append("" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "");
}
}
}
return(sql.ToString());
}
protected string SelectSQL(BaseBOL obj)
{
PropertyInfo[] propertyInfos;
Type t = obj.GetType();
propertyInfos = t.GetProperties();
// sort properties by name
Array.Sort(propertyInfos,
delegate(PropertyInfo propertyInfo1, PropertyInfo propertyInfo2)
{ return(propertyInfo1.Name.CompareTo(propertyInfo2.Name)); });
// write property names
StringBuilder sql = new StringBuilder();
sql.Append(@"SELECT ");//(
foreach (PropertyInfo propertyInfo in propertyInfos)
{
// prop = prop + propertyInfo.Name + " , " + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + ", ";
if (propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true).Length > 0 &&
((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText == "Exclude")
{
continue;
}
else
{
sql.Append("`" + propertyInfo.Name + "`,");
}
}
if (sql.Length > 0)
{
sql = sql.Remove(sql.Length - 1, 1);
}
sql.Append(" FROM `" + GetEntityName(obj) + "`");
sql.Append(" WHERE ");
foreach (PropertyInfo propertyInfo in propertyInfos)
{
if (propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true).Length > 0 &&
((HelpAttribute)(propertyInfo.GetCustomAttributes(typeof(HelpAttribute), true)[0])).HelpText == "Exclude")
{
continue;
}
{
if (propertyInfo.PropertyType == typeof(string) &&
!string.IsNullOrEmpty(Convert.ToString(obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null)))
)
{
sql.Append("`" + propertyInfo.Name + "` = ");
sql.Append("'" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "'");
sql.Append(" AND");
}
else if (propertyInfo.PropertyType == typeof(int))
{
if (Convert.ToInt32(obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null)) > 0)
{
sql.Append("`" + propertyInfo.Name + "` = ");
sql.Append("" + obj.GetType().GetProperty(propertyInfo.Name).GetValue(obj, null) + "");
sql.Append(" AND");
}
}
}
}
if (sql.Length > 0)
{
// sql = sql.Remove(sql.Length - 3, 3);
sql.Append(" 1 ");
}
//sql.Append(")");
return(sql.ToString());
}
