public static bool Delete(this IOrmModel me, int PrimaryKeyValue)
{
//Note, this returns true if no row is found matching the key... bubble exception maybe from SQL?
KeyValuePair <string, int?> _PrimaryKey = ReflectionHelper.PrimaryKey(me);
/*Move donot use reflection unless error*/
string _message = string.Format("Process {0} failed;", ReflectionHelper.GetProcessName(me));
_message = string.Format("Process {0} failed; {1}={2}", ReflectionHelper.GetProcessName(me), _PrimaryKey.Key, _PrimaryKey.Value);
try {
using (SqlConnection cn = new SqlConnection(Connstring())) {
cn.Open();
SqlCommand cmd = new SqlCommand(me.OrmContext.Delete, cn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter(_PrimaryKey.Key, SqlDbType.Int));
cmd.Parameters[_PrimaryKey.Key].Direction = ParameterDirection.InputOutput;
cmd.Parameters[_PrimaryKey.Key].Value = PrimaryKeyValue;
cmd.Parameters.AddWithValue("delete", true);
cmd.ExecuteNonQuery();
cn.Close();
}
OrmCaching.ClearCacheForProcessType(me.GetType().FullName);
return(true);
}
catch (SqlException ex) {
//err.WriteError("SQL Exception: " + _message, GetProcessName(me), ex);
throw;
}
catch (Exception ex) {
//err.WriteError(_message, GetProcessName(me), ex);
}
return(false);
}
public static IOrmModel Create(this IOrmModel me)
{
KeyValuePair <string, int?> _PrimaryKey = ReflectionHelper.PrimaryKey(me);
/*Move donot use reflection unless error*/
//string _message = string.Format("Process {0} failed;", ReflectionHelper.GetProcessName(me));
//_message = string.Format("Process {0} failed; {1}={2}", ReflectionHelper.GetProcessName(me), _PrimaryKey.Key, _PrimaryKey.Value);
try {
using (SqlConnection cn = new SqlConnection(Connstring())) {
cn.Open();
SqlCommand cmd = new SqlCommand(me.OrmContext.Create, cn);
cmd.CommandType = CommandType.StoredProcedure;
foreach (DataAnnotationsModelMetadata field in ModelMetadataProviders.Current.GetMetadataForProperties(me, me.GetType()))
{
if (
field.AdditionalValues.Contains(new KeyValuePair <string, object>("ORM", true))
& !field.AdditionalValues.Contains(new KeyValuePair <string, object>("ORM_Update", false))
)
{
if (field.AdditionalValues.Contains(new KeyValuePair <string, object>("ORM_PrimaryKey", true)))
{
cmd.Parameters.Add(new SqlParameter(field.PropertyName, SqlDbType.Int));
cmd.Parameters[field.PropertyName].Direction = ParameterDirection.Output;
}
else
{
System.Reflection.PropertyInfo PropInfo = me.GetType().GetProperty(field.PropertyName);
object PropVal = PropInfo.GetValue(me, null);
cmd.Parameters.AddWithValue(field.PropertyName, PropVal);
}
}
}
cmd.ExecuteNonQuery();
ReflectionHelper.SetProperty(
me
, _PrimaryKey.Key
, cmd.Parameters[_PrimaryKey.Key].Value
);
cn.Close();
}
OrmCaching.ClearCacheForProcessType(me.GetType().FullName);
}
catch (SqlException ex) {
// err.WriteError("SQL Exception: " + _message, GetProcessName(me), ex);
throw;
}
catch (Exception ex) {
// err.WriteError(_message, GetProcessName(me), ex);
}
return(me);
}
//as a general rule of thumb, consider the parallel library as being faster on
//recordsets of greater then 100 rows, don't use this for small datasets.
public static List <T> GetInParallel <T>(this IOrmModel me) where T : IOrmModel, new()
{
string ProcessName = ReflectionHelper.GetProcessName(me);
string _message = string.Format("Process {0} failed;", ProcessName);
string _cacheName = ProcessName;
ConcurrentQueue <T> retval = new ConcurrentQueue <T>();
object sync = new object();
if (!me.CacheStatus(_cacheName))
{
try {
using (SqlConnection cn = new SqlConnection(Connstring())) {
cn.Open();
SqlCommand cmd = new SqlCommand(me.OrmContext.Read, cn);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataReader r = cmd.ExecuteReader();
Parallel.ForEach(r.Cast <System.Data.Common.DbDataRecord>(), row => {
IOrmModel item = (IOrmModel) new T();
item.AutoMapFromDictionary(row.ToDataRow());
lock (sync) {
retval.Enqueue((T)item);
}
});
while (r.NextResult())
{
; //get Error from SQL... Foobar..
}
cn.Close();
}
if (retval.Count > 0)
{
OrmCaching.SetCache(_cacheName, retval.ToList <T>());
}
}
catch (SqlException ex) {
// err.WriteError("SQL Exception: " + _message, GetProcessName(me), ex);
throw;
}
catch (Exception ex) {
// err.WriteError(_message, GetProcessName(me), ex);
}
return(retval.ToList <T>());
}
else
{
return((List <T>)OrmCaching.GetCache(_cacheName));
}
}
public static List <T> GetCollection <T>(this IOrmModel me) where T : IOrmModel, new()
{
string _message = string.Format("Process {0} failed;", ReflectionHelper.GetProcessName(me));
string _cacheName = ReflectionHelper.GetProcessName(me);
List <T> retval = new List <T>();
object sync = new object();
if (!me.CacheStatus(_cacheName))
{
try {
using (SqlConnection cn = new SqlConnection(Connstring())) {
cn.Open();
SqlCommand cmd = new SqlCommand(me.OrmContext.Read, cn);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
Dictionary <string, object> row = r.ToDataRow();
IOrmModel item = (IOrmModel) new T();
item.AutoMapFromDictionary(row);
retval.Add((T)item);
}
while (r.NextResult())
{
; //get Error... Foobar..
}
cn.Close();
}
if (retval.Count > 0)
{
OrmCaching.SetCache(_cacheName, me);
}
}
catch (SqlException ex) {
// err.WriteError("SQL Exception: " + _message, GetProcessName(me), ex);
throw;
}
catch (Exception ex) {
// err.WriteError(_message, GetProcessName(me), ex);
}
return(retval);
}
else
{
return((List <T>)OrmCaching.GetCache(_cacheName));
}
}
public static T Get <T> (this IOrmModel me, int id) where T : IOrmModel, new()
{
KeyValuePair <string, int?> _PrimaryKey = ReflectionHelper.PrimaryKey(me);
string ProcessName = ReflectionHelper.GetProcessName(me);
string _message = string.Format("Process {0} failed;", ProcessName);
_message = string.Format("Process {0} failed; {1}={2}", ProcessName, _PrimaryKey.Key, _PrimaryKey.Value);
string _cacheName = string.Format("{0}/{1}", ProcessName, _PrimaryKey.Value);
if (!me.CacheStatus(_cacheName))
{
try {
using (SqlConnection cn = new SqlConnection(Connstring())) {
cn.Open();
SqlCommand cmd = new SqlCommand(me.OrmContext.Read, cn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue(_PrimaryKey.Key, id);
SqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
Dictionary <string, object> row = r.ToDataRow();
IOrmModel item = (IOrmModel) new T();
item.AutoMapFromDictionary(row);
OrmCaching.SetCache(_cacheName, item);
return((T)item);
}
while (r.NextResult())
{
; //get Error... Foobar..
}
cn.Close();
}
}
catch (SqlException ex) {
// err.WriteError("SQL Exception: " + _message, GetProcessName(me), ex);
throw;
}
catch (Exception ex) {
// err.WriteError(_message, GetProcessName(me), ex);
}
return((T)me);
}
else
{
return((T)OrmCaching.GetCache(_cacheName));
}
}
