public static void Delete(MySQLDataStoreBase store, MySqlConnection cnn, ModelBase instance, IDataStoreKey key, object[] extra)
{
var record = GeneratorUtils.AsSuitableRecordInstance(instance, true);
using (var cmd = cnn.CreateCommand())
{
var pk = key ?? record.DataStoreKey;
if (pk == null)
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
if (!string.IsNullOrEmpty(where))
cmd.CommandText = string.Format("DELETE T1 FROM `{0}` T1 WHERE {1}", record.TableName, where);
else
cmd.CommandText = string.Format("DELETE T1 FROM `{0}` T1", record.TableName);
var affected = 0;
try
{
affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "rmdelete-ok", cmd, null);
}
catch(Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "rmdelete-error", cmd, error);
throw;
}
if (affected == 0)
throw new MySQLDataAccessException(string.Format(StringConsts.NO_ROWS_AFFECTED_ERROR, "Delete"));
}//using command
}
internal static object CLRValueToDB(MySQLDataStoreBase store, object value, out MySqlDbType?convertedDbType)
{
convertedDbType = null;
if (value == null)
{
return(null);
}
if (value is GDID)
{
if (store.FullGDIDS)
{
value = (object)((GDID)value).Bytes;
convertedDbType = MySqlDbType.Binary;
}
else
{
value = (object)((GDID)value).ID;
convertedDbType = MySqlDbType.Int64;
}
}
else
if (value is bool)
{
if (store.StringBool)
{
value = (bool)value ? store.StringForTrue : store.StringForFalse;
convertedDbType = MySqlDbType.VarChar;
}
}
return(value);
}
private static object getFieldValue(Row row, int order, MySQLDataStoreBase store)
{
var result = row[order];
MySqlDbType?convertedDbType;
return(CLRValueToDB(store, result, out convertedDbType));
}
/// <summary>
/// Auto generates select sql and params. If sqlStatement!=null then params are added to that statement
/// </summary>
public static void Load(MySQLDataStoreBase store, MySqlConnection cnn, string sqlStatement, ModelBase instance, IDataStoreKey key, object[] extra)
{
var autoSql = string.IsNullOrEmpty(sqlStatement);
var record = GeneratorUtils.AsSuitableRecordInstance(instance, autoSql);
var select = new StringBuilder();
if (autoSql)
{
foreach (var fld in record.Fields)
if (fld.StoreFlag == StoreFlag.LoadAndStore || fld.StoreFlag == StoreFlag.OnlyLoad)
select.AppendFormat(" T1.`{0}`,", fld.FieldName);
if (select.Length > 0)
select.Remove(select.Length - 1, 1);// remove ","
else throw new MySQLDataAccessException(StringConsts.LOAD_NO_SELECT_COLUMNS_ERROR);
}
var pk = key ?? record.DataStoreKey;
if (pk == null)
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
using (var cmd = cnn.CreateCommand())
{
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
if (autoSql)
cmd.CommandText = string.Format("SELECT {0} FROM `{1}` T1 WHERE {2}", select, record.TableName, where);
else
cmd.CommandText = string.Format(sqlStatement, where);
MySqlDataReader reader = null;
try
{
reader = cmd.ExecuteReader();
GeneratorUtils.LogCommand(store.LogLevel, "rmload-ok", cmd, null);
}
catch(Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "rmload-error", cmd, error);
throw;
}
using (reader)
{
if (reader.Read())
reader.CopyFieldsToRecordFields(record);
else
throw new MySQLDataAccessException(string.Format(StringConsts.LOADING_ENTITY_NOT_FOUND_ERROR, pk));
}//using reader
}//using command
}
public static int CRUDDelete(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, IDataStoreKey key)
{
try
{
return(crudDelete(store, cnn, trans, row, key));
}
catch (Exception error)
{
throw new MySQLDataAccessException(StringConsts.CRUD_STATEMENT_EXECUTION_ERROR.Args("delete", error.ToMessageWithType(), error), error);
}
}
public static int CRUDDelete(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, IDataStoreKey key)
{
try
{
return crudDelete(store, cnn, trans, row, key);
}
catch(Exception error)
{
throw new MySQLDataAccessException(StringConsts.CRUD_STATEMENT_EXECUTION_ERROR.Args("delete", error.ToMessageWithType(), error), error);
}
}
internal static void ConvertParameters(MySQLDataStoreBase store, MySqlParameterCollection pars)
{
if (pars == null)
{
return;
}
for (var i = 0; i < pars.Count; i++)
{
var par = pars[i];
par.Value = CLRValueToDB(store, par.Value);
}
}
public static int CRUDUpsert(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, FieldFilterFunc filter)
{
try
{
return(crudUpsert(store, cnn, trans, row, filter));
}
catch (Exception error)
{
throw new MySQLDataAccessException(
StringConsts.CRUD_STATEMENT_EXECUTION_ERROR.Args("upsert", error.ToMessageWithType(), error),
error,
KeyViolationKind.Unspecified,
keyViolationName(error));
}
}
public static int CRUDUpsert(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, FieldFilterFunc filter)
{
try
{
return crudUpsert(store, cnn, trans, row, filter);
}
catch(Exception error)
{
throw new MySQLDataAccessException(
StringConsts.CRUD_STATEMENT_EXECUTION_ERROR.Args("upsert", error.ToMessageWithType(), error),
error,
KeyViolationKind.Unspecified,
keyViolationName(error));
}
}
internal static void ConvertParameters(MySQLDataStoreBase store, MySqlParameterCollection pars)
{
if (pars == null)
{
return;
}
for (var i = 0; i < pars.Count; i++)
{
var par = pars[i];
MySqlDbType?convertedDbType;
par.Value = CLRValueToDB(store, par.Value, out convertedDbType);
if (convertedDbType.HasValue)
{
par.MySqlDbType = convertedDbType.Value;
}
}
}
public static void Delete(MySQLDataStoreBase store, MySqlConnection cnn, ModelBase instance, IDataStoreKey key, object[] extra)
{
var record = GeneratorUtils.AsSuitableRecordInstance(instance, true);
using (var cmd = cnn.CreateCommand())
{
var pk = key ?? record.DataStoreKey;
if (pk == null)
{
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
}
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
if (!string.IsNullOrEmpty(where))
{
cmd.CommandText = string.Format("DELETE T1 FROM `{0}` T1 WHERE {1}", record.TableName, where);
}
else
{
cmd.CommandText = string.Format("DELETE T1 FROM `{0}` T1", record.TableName);
}
var affected = 0;
try
{
affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "rmdelete-ok", cmd, null);
}
catch (Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "rmdelete-error", cmd, error);
throw;
}
if (affected == 0)
{
throw new MySQLDataAccessException(string.Format(StringConsts.NO_ROWS_AFFECTED_ERROR, "Delete"));
}
}//using command
}
private static int crudDelete(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, IDataStoreKey key)
{
var target = store.TargetName;
string tableName = getTableName(row.Schema, target);
using (var cmd = cnn.CreateCommand())
{
var pk = key ?? row.GetDataStoreKey(target);
if (pk == null)
{
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
}
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
cmd.Transaction = trans;
if (!string.IsNullOrEmpty(where))
{
cmd.CommandText = string.Format("DELETE T1 FROM `{0}` T1 WHERE {1}", tableName, where);
}
else
{
cmd.CommandText = string.Format("DELETE T1 FROM `{0}` T1", tableName);
}
ConvertParameters(store, cmd.Parameters);
try
{
var affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "delete-ok", cmd, null);
return(affected);
}
catch (Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "delete-error", cmd, error);
throw;
}
}//using command
}
internal static object CLRValueToDB(MySQLDataStoreBase store, object value, out MySqlDbType?convertedDbType)
{
convertedDbType = null;
if (value == null)
{
return(null);
}
if (value is GDID)
{
if (((GDID)value).IsZero)
{
return(null);
}
if (store.FullGDIDS)
{
value = (object)((GDID)value).Bytes;//be very careful with byte ordering of GDID for index optimization
convertedDbType = MySqlDbType.Binary;
}
else
{
value = (object)((GDID)value).ID;
convertedDbType = MySqlDbType.Int64;
}
}
else
if (value is bool)
{
if (store.StringBool)
{
value = (bool)value ? store.StringForTrue : store.StringForFalse;
convertedDbType = MySqlDbType.VarChar;
}
}
return(value);
}
internal static object CLRValueToDB(MySQLDataStoreBase store, object value)
{
if (value == null)
{
return(null);
}
if (value is GDID)
{
value = ((GDID)value).ID;
}
else
if (value is bool)
{
if (store.StringBool)
{
value = (bool)value ? store.StringForTrue : store.StringForFalse;
}
}
return(value);
}
private static int crudUpdate(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, IDataStoreKey key, FieldFilterFunc filter)
{
var target = store.TargetName;
var values = new StringBuilder();
var vparams = new List<MySqlParameter>();
var vpidx = 0;
foreach (var fld in row.Schema.FieldDefs)
{
var fattr = fld[target];
if (fattr==null) continue;
var fname = fld.GetBackendNameForTarget(target);
//20141008 DKh Skip update of key fields
//20160124 DKh add update of keys if IDataStoreKey is present
if (fattr.Key && !GeneratorUtils.HasFieldInNamedKey(fname, key)) continue;
if (fattr.StoreFlag != StoreFlag.LoadAndStore && fattr.StoreFlag != StoreFlag.OnlyStore) continue;
if (filter!=null)//20160210 Dkh+SPol
{
if (!filter(row, key, fld)) continue;
}
var fvalue = getFieldValue(row, fld.Order, store);
if ( fvalue != null)
{
var pname = string.Format("?VAL{0}", vpidx);
values.AppendFormat(" `{0}` = {1},", fname, pname);
var par = new MySqlParameter();
par.ParameterName = pname;
par.Value = fvalue;
vparams.Add(par);
vpidx++;
}
else
{
values.AppendFormat(" `{0}` = NULL,", fname);
}
}//foreach
if (values.Length > 0)
{
values.Remove(values.Length - 1, 1);// remove ","
}
else
return 0;//nothing to do
string tableName = getTableName(row.Schema, target);
using(var cmd = cnn.CreateCommand())
{
var sql = string.Empty;
var pk = key ?? row.GetDataStoreKey(target);
if (pk == null)
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
if (!string.IsNullOrEmpty(where))
sql = "UPDATE `{0}` T1 SET {1} WHERE {2}".Args( tableName, values, where);
else
throw new MySQLDataAccessException(StringConsts.BROAD_UPDATE_ERROR);//20141008 DKh BROAD update
cmd.Transaction = trans;
cmd.CommandText = sql;
cmd.Parameters.AddRange(vparams.ToArray());
ConvertParameters(store, cmd.Parameters);
try
{
var affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "update-ok", cmd, null);
return affected;
}
catch(Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "update-error", cmd, error);
throw;
}
}//using command
}
private static int crudDelete(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, IDataStoreKey key)
{
var target = store.TargetName;
string tableName = getTableName(row.Schema, target);
using (var cmd = cnn.CreateCommand())
{
var pk = key ?? row.GetDataStoreKey(target);
if (pk == null)
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
cmd.Transaction = trans;
if (!string.IsNullOrEmpty(where))
cmd.CommandText = string.Format("DELETE T1 FROM `{0}` T1 WHERE {1}",tableName, where);
else
cmd.CommandText = string.Format("DELETE T1 FROM `{0}` T1", tableName);
ConvertParameters(store, cmd.Parameters);
try
{
var affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "delete-ok", cmd, null);
return affected;
}
catch(Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "delete-error", cmd, error);
throw;
}
}//using command
}
internal static void ConvertParameters(MySQLDataStoreBase store, MySqlParameterCollection pars)
{
if (pars==null) return;
for(var i=0; i<pars.Count; i++)
{
var par = pars[i];
MySqlDbType? convertedDbType;
par.Value = CLRValueToDB(store, par.Value, out convertedDbType);
if (convertedDbType.HasValue)
par.MySqlDbType = convertedDbType.Value;
}
}
internal static object CLRValueToDB(MySQLDataStoreBase store, object value, out MySqlDbType? convertedDbType)
{
convertedDbType = null;
if (value==null) return null;
if (value is GDID)
{
if (((GDID)value).IsZero)
{
return null;
}
if(store.FullGDIDS)
{
value = (object)((GDID)value).Bytes;
convertedDbType = MySqlDbType.Binary;
}
else
{
value = (object)((GDID)value).ID;
convertedDbType = MySqlDbType.Int64;
}
}
else
if (value is bool)
{
if (store.StringBool)
{
value = (bool)value ? store.StringForTrue : store.StringForFalse;
convertedDbType = MySqlDbType.VarChar;
}
}
return value;
}
public static void Save(MySQLDataStoreBase store, MySqlConnection cnn, ModelBase instance, IDataStoreKey key, object[] extra)
{
var record = GeneratorUtils.AsSuitableRecordInstance(instance, true);
if (record.LastPostedChange != ChangeType.Created && record.LastPostedChange != ChangeType.Edited)
{
throw new MySQLDataAccessException(string.Format(StringConsts.MODEL_INVALID_STATE_ERROR, "Created || Edited", instance.LastPostedChange));
}
bool insert = instance.LastPostedChange == ChangeType.Created;
var cnames = new StringBuilder();
var values = new StringBuilder();
var vparams = new List <MySqlParameter>();
var vpidx = 0;
foreach (var fld in record.Fields)
{
if (fld.StoreFlag == StoreFlag.LoadAndStore || fld.StoreFlag == StoreFlag.OnlyStore)
{
if (
insert || fld.Modified
)
{
cnames.AppendFormat(" `{0}`,", fld.FieldName);
if (fld.HasValue)
{
var pname = string.Format("?VAL{0}", vpidx);
if (insert)
{
values.AppendFormat(" {0},", pname);
}
else
{
values.AppendFormat(" `{0}` = {1},", fld.FieldName, pname);
}
var par = new MySqlParameter();
par.ParameterName = pname;
par.Value = fld.ValueAsObject;
vparams.Add(par);
vpidx++;
}
else
{
if (insert)
{
values.Append(" NULL,");
}
else
{
values.AppendFormat(" `{0}` = NULL,", fld.FieldName);
}
}
}
}
}
if (cnames.Length > 0)
{
cnames.Remove(cnames.Length - 1, 1);// remove ","
if (values.Length > 0)
{
values.Remove(values.Length - 1, 1); // remove ","
}
}
else
{
return;//nothing has been modified
}
using (var cmd = cnn.CreateCommand())
{
var sql = string.Empty;
if (insert) //INSERT
{
sql =
string.Format("INSERT INTO `{0}` ({1}) VALUES ({2})", record.TableName, cnames, values);
}
else //UPDATE
{
var pk = key ?? record.DataStoreKey;
if (pk == null)
{
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
}
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
if (!string.IsNullOrEmpty(where))
{
sql = string.Format("UPDATE `{0}` T1 SET {1} WHERE {2}", record.TableName, values, where);
}
else
{
sql = string.Format("UPDATE `{0}` T1 SET {1}", record.TableName, values);
}
}
cmd.CommandText = sql;
cmd.Parameters.AddRange(vparams.ToArray());
var affected = 0;
try
{
affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "rmsave-ok", cmd, null);
}
catch (Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "rmsave-error", cmd, error);
throw;
}
if (affected == 0)
{
throw new MySQLDataAccessException(string.Format(StringConsts.NO_ROWS_AFFECTED_ERROR, instance.LastPostedChange == ChangeType.Created ? "Insert" : "Update"));
}
}//using command
}
private static object getFieldValue(Row row, int order, MySQLDataStoreBase store)
{
var result = row[order];
return(CLRValueToDB(store, result));
}
private static object getFieldValue(Row row, int order, MySQLDataStoreBase store)
{
var result = row[order];
MySqlDbType? convertedDbType;
return CLRValueToDB(store, result, out convertedDbType);
}
/// <summary>
/// Based on store settings, converts CLR value to MySQL-acceptable value, i.e. GDID -> BYTE[].
/// </summary>
public object CLRValueToDB(MySQLDataStoreBase store, object value, out MySqlDbType?convertedDbType)
{
return(CRUDGenerator.CLRValueToDB(DataStore, value, out convertedDbType));
}
private static object getFieldValue(Row row, int order, MySQLDataStoreBase store)
{
var result = row[order];
return CLRValueToDB(store, result);
}
private static int crudUpsert(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, FieldFilterFunc filter)
{
var target = store.TargetName;
var cnames = new StringBuilder();
var values = new StringBuilder();
var upserts = new StringBuilder();
var vparams = new List <MySqlParameter>();
var vpidx = 0;
foreach (var fld in row.Schema.FieldDefs)
{
var fattr = fld[target];
if (fattr == null)
{
continue;
}
if (fattr.StoreFlag != StoreFlag.LoadAndStore && fattr.StoreFlag != StoreFlag.OnlyStore)
{
continue;
}
if (filter != null)//20160210 Dkh+SPol
{
if (!filter(row, null, fld))
{
continue;
}
}
var fname = fld.GetBackendNameForTarget(target);
var fvalue = getFieldValue(row, fld.Order, store);
cnames.AppendFormat(" `{0}`,", fname);
if (fvalue != null)
{
var pname = string.Format("?VAL{0}", vpidx);
values.AppendFormat(" {0},", pname);
if (!fattr.Key)
{
upserts.AppendFormat(" `{0}` = {1},", fname, pname);
}
var par = new MySqlParameter();
par.ParameterName = pname;
par.Value = fvalue;
vparams.Add(par);
vpidx++;
}
else
{
values.Append(" NULL,");
upserts.AppendFormat(" `{0}` = NULL,", fname);
}
}//foreach
if (cnames.Length > 0 && upserts.Length > 0)
{
cnames.Remove(cnames.Length - 1, 1); // remove ","
upserts.Remove(upserts.Length - 1, 1); // remove ","
values.Remove(values.Length - 1, 1); // remove ","
}
else
{
return(0);//nothing to do
}
string tableName = getTableName(row.Schema, target);
using (var cmd = cnn.CreateCommand())
{
var sql =
@"INSERT INTO `{0}` ({1}) VALUES ({2}) ON DUPLICATE KEY UPDATE {3}".Args(tableName, cnames, values, upserts);
cmd.Transaction = trans;
cmd.CommandText = sql;
cmd.Parameters.AddRange(vparams.ToArray());
ConvertParameters(store, cmd.Parameters);
try
{
var affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "upsert-ok", cmd, null);
return(affected);
}
catch (Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "upsert-error", cmd, error);
throw;
}
}//using command
}
private static int crudUpdate(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, IDataStoreKey key, FieldFilterFunc filter)
{
var target = store.TargetName;
var values = new StringBuilder();
var vparams = new List <MySqlParameter>();
var vpidx = 0;
foreach (var fld in row.Schema.FieldDefs)
{
var fattr = fld[target];
if (fattr == null)
{
continue;
}
var fname = fld.GetBackendNameForTarget(target);
//20141008 DKh Skip update of key fields
//20160124 DKh add update of keys if IDataStoreKey is present
if (fattr.Key && !GeneratorUtils.HasFieldInNamedKey(fname, key))
{
continue;
}
if (fattr.StoreFlag != StoreFlag.LoadAndStore && fattr.StoreFlag != StoreFlag.OnlyStore)
{
continue;
}
if (filter != null)//20160210 Dkh+SPol
{
if (!filter(row, key, fld))
{
continue;
}
}
var fvalue = getFieldValue(row, fld.Order, store);
if (fvalue != null)
{
var pname = string.Format("?VAL{0}", vpidx);
values.AppendFormat(" `{0}` = {1},", fname, pname);
var par = new MySqlParameter();
par.ParameterName = pname;
par.Value = fvalue;
vparams.Add(par);
vpidx++;
}
else
{
values.AppendFormat(" `{0}` = NULL,", fname);
}
}//foreach
if (values.Length > 0)
{
values.Remove(values.Length - 1, 1);// remove ","
}
else
{
return(0);//nothing to do
}
string tableName = getTableName(row.Schema, target);
using (var cmd = cnn.CreateCommand())
{
var sql = string.Empty;
var pk = key ?? row.GetDataStoreKey(target);
if (pk == null)
{
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
}
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
if (!string.IsNullOrEmpty(where))
{
sql = "UPDATE `{0}` T1 SET {1} WHERE {2}".Args(tableName, values, where);
}
else
{
throw new MySQLDataAccessException(StringConsts.BROAD_UPDATE_ERROR);//20141008 DKh BROAD update
}
cmd.Transaction = trans;
cmd.CommandText = sql;
cmd.Parameters.AddRange(vparams.ToArray());
ConvertParameters(store, cmd.Parameters);
try
{
var affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "update-ok", cmd, null);
return(affected);
}
catch (Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "update-error", cmd, error);
throw;
}
}//using command
}
public MySQLCRUDQueryExecutionContext(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans)
{
DataStore = store;
Connection = cnn;
Transaction = trans;
}
internal static object CLRValueToDB(MySQLDataStoreBase store, object value)
{
if (value==null) return null;
if (value is GDID) value = ((GDID)value).ID;
else
if (value is bool)
{
if (store.StringBool)
value = (bool)value ? store.StringForTrue : store.StringForFalse;
}
return value;
}
private static int crudUpsert(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans, Row row, FieldFilterFunc filter)
{
var target = store.TargetName;
var cnames = new StringBuilder();
var values = new StringBuilder();
var upserts = new StringBuilder();
var vparams = new List<MySqlParameter>();
var vpidx = 0;
foreach (var fld in row.Schema.FieldDefs)
{
var fattr = fld[target];
if (fattr==null) continue;
if (fattr.StoreFlag != StoreFlag.LoadAndStore && fattr.StoreFlag != StoreFlag.OnlyStore) continue;
if (filter!=null)//20160210 Dkh+SPol
{
if (!filter(row, null, fld)) continue;
}
var fname = fld.GetBackendNameForTarget(target);
var fvalue = getFieldValue(row, fld.Order, store);
cnames.AppendFormat(" `{0}`,", fname);
if ( fvalue != null)
{
var pname = string.Format("?VAL{0}", vpidx);
values.AppendFormat(" {0},", pname);
if (!fattr.Key)
upserts.AppendFormat(" `{0}` = {1},", fname, pname);
var par = new MySqlParameter();
par.ParameterName = pname;
par.Value = fvalue;
vparams.Add(par);
vpidx++;
}
else
{
values.Append(" NULL,");
upserts.AppendFormat(" `{0}` = NULL,", fname);
}
}//foreach
if (cnames.Length > 0)
{
cnames.Remove(cnames.Length - 1, 1);// remove ","
upserts.Remove(upserts.Length - 1, 1);// remove ","
values.Remove(values.Length - 1, 1);// remove ","
}
else
return 0;//nothing to do
string tableName = getTableName(row.Schema, target);
using(var cmd = cnn.CreateCommand())
{
var sql =
@"INSERT INTO `{0}` ({1}) VALUES ({2}) ON DUPLICATE KEY UPDATE {3}".Args( tableName, cnames, values, upserts);
cmd.Transaction = trans;
cmd.CommandText = sql;
cmd.Parameters.AddRange(vparams.ToArray());
ConvertParameters(store, cmd.Parameters);
try
{
var affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "upsert-ok", cmd, null);
return affected;
}
catch(Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "upsert-error", cmd, error);
throw;
}
}//using command
}
public MySQLCRUDQueryExecutionContext(MySQLDataStoreBase store, MySqlConnection cnn, MySqlTransaction trans)
{
DataStore = store;
Connection = cnn;
Transaction = trans;
}
public static void Save(MySQLDataStoreBase store, MySqlConnection cnn, ModelBase instance, IDataStoreKey key, object[] extra)
{
var record = GeneratorUtils.AsSuitableRecordInstance(instance, true);
if (record.LastPostedChange != ChangeType.Created && record.LastPostedChange != ChangeType.Edited)
throw new MySQLDataAccessException(string.Format(StringConsts.MODEL_INVALID_STATE_ERROR, "Created || Edited", instance.LastPostedChange));
bool insert = instance.LastPostedChange == ChangeType.Created;
var cnames = new StringBuilder();
var values = new StringBuilder();
var vparams = new List<MySqlParameter>();
var vpidx = 0;
foreach (var fld in record.Fields)
if (fld.StoreFlag == StoreFlag.LoadAndStore || fld.StoreFlag == StoreFlag.OnlyStore)
if (
insert || fld.Modified
)
{
cnames.AppendFormat(" `{0}`,", fld.FieldName);
if (fld.HasValue)
{
var pname = string.Format("?VAL{0}", vpidx);
if (insert)
values.AppendFormat(" {0},", pname);
else
values.AppendFormat(" `{0}` = {1},", fld.FieldName, pname);
var par = new MySqlParameter();
par.ParameterName = pname;
par.Value = fld.ValueAsObject;
vparams.Add(par);
vpidx++;
}
else
{
if (insert)
values.Append(" NULL,");
else
values.AppendFormat(" `{0}` = NULL,", fld.FieldName);
}
}
if (cnames.Length > 0)
{
cnames.Remove(cnames.Length - 1, 1);// remove ","
if (values.Length > 0) values.Remove(values.Length - 1, 1);// remove ","
}
else
return;//nothing has been modified
using (var cmd = cnn.CreateCommand())
{
var sql = string.Empty;
if (insert) //INSERT
{
sql =
string.Format("INSERT INTO `{0}` ({1}) VALUES ({2})", record.TableName, cnames, values);
}
else //UPDATE
{
var pk = key ?? record.DataStoreKey;
if (pk == null)
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
if (!string.IsNullOrEmpty(where))
sql = string.Format("UPDATE `{0}` T1 SET {1} WHERE {2}", record.TableName, values, where);
else
sql = string.Format("UPDATE `{0}` T1 SET {1}", record.TableName, values);
}
cmd.CommandText = sql;
cmd.Parameters.AddRange(vparams.ToArray());
var affected = 0;
try
{
affected = cmd.ExecuteNonQuery();
GeneratorUtils.LogCommand(store.LogLevel, "rmsave-ok", cmd, null);
}
catch(Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "rmsave-error", cmd, error);
throw;
}
if (affected == 0)
throw new MySQLDataAccessException(string.Format(StringConsts.NO_ROWS_AFFECTED_ERROR, instance.LastPostedChange == ChangeType.Created ? "Insert" : "Update"));
}//using command
}
/// <summary>
/// Auto generates select sql and params. If sqlStatement!=null then params are added to that statement
/// </summary>
public static void Load(MySQLDataStoreBase store, MySqlConnection cnn, string sqlStatement, ModelBase instance, IDataStoreKey key, object[] extra)
{
var autoSql = string.IsNullOrEmpty(sqlStatement);
var record = GeneratorUtils.AsSuitableRecordInstance(instance, autoSql);
var select = new StringBuilder();
if (autoSql)
{
foreach (var fld in record.Fields)
{
if (fld.StoreFlag == StoreFlag.LoadAndStore || fld.StoreFlag == StoreFlag.OnlyLoad)
{
select.AppendFormat(" T1.`{0}`,", fld.FieldName);
}
}
if (select.Length > 0)
{
select.Remove(select.Length - 1, 1);// remove ","
}
else
{
throw new MySQLDataAccessException(StringConsts.LOAD_NO_SELECT_COLUMNS_ERROR);
}
}
var pk = key ?? record.DataStoreKey;
if (pk == null)
{
throw new MySQLDataAccessException(StringConsts.KEY_UNAVAILABLE_ERROR);
}
using (var cmd = cnn.CreateCommand())
{
var where = GeneratorUtils.KeyToWhere(pk, cmd.Parameters);
if (autoSql)
{
cmd.CommandText = string.Format("SELECT {0} FROM `{1}` T1 WHERE {2}", select, record.TableName, where);
}
else
{
cmd.CommandText = string.Format(sqlStatement, where);
}
MySqlDataReader reader = null;
try
{
reader = cmd.ExecuteReader();
GeneratorUtils.LogCommand(store.LogLevel, "rmload-ok", cmd, null);
}
catch (Exception error)
{
GeneratorUtils.LogCommand(store.LogLevel, "rmload-error", cmd, error);
throw;
}
using (reader)
{
if (reader.Read())
{
reader.CopyFieldsToRecordFields(record);
}
else
{
throw new MySQLDataAccessException(string.Format(StringConsts.LOADING_ENTITY_NOT_FOUND_ERROR, pk));
}
} //using reader
} //using command
}
/// <summary>
/// Based on store settings, converts CLR value to MySQL-acceptable value, i.e. GDID -> BYTE[].
/// </summary>
public object CLRValueToDB(MySQLDataStoreBase store, object value, out MySqlDbType? convertedDbType)
{
return CRUDGenerator.CLRValueToDB(DataStore, value, out convertedDbType);
}
internal static void ConvertParameters(MySQLDataStoreBase store, MySqlParameterCollection pars)
{
if (pars==null) return;
for(var i=0; i<pars.Count; i++)
{
var par = pars[i];
par.Value = CLRValueToDB(store, par.Value);
}
}
