/// <summary>
/// Determines whether this instance [can generate key] the specified pk.
/// </summary>
/// <param name="pk">The pk.</param>
/// <param name="pInfo">The p info.</param>
/// <param name="entity">The entity.</param>
/// <param name="typeConverterStore">The type converter store.</param>
/// <returns>
/// <c>true</c> if this instance [can generate key] the specified pk; otherwise, <c>false</c>.
/// </returns>
public static bool CanGenerateKey(this PrimaryKeyProperty pk, PropertyAccessor pInfo, object entity,
ITypeConverterStore typeConverterStore)
{
if (pk.KeyGenerator == null)
{
return(false);
}
//now let's check the value
var idValue = pInfo.GetMethod(entity);
if (idValue == null)
{
return(true);
}
var converter = typeConverterStore.GetConverterFactoryMethod(idValue.GetType());
try
{
object unsavedVal = converter.Invoke(pk.UnsavedValueString);
if (idValue.Equals(unsavedVal))
{
return(true);
}
return(false);
}
catch (Exception ex)
{
throw new MappingException(
string.Format("Could not convert '{0}' to {1} for property {2}", pk.UnsavedValueString,
idValue.GetType().FullName, pk.Key.PropertyName), ex);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ConfigManager"/> class.
/// </summary>
/// <param name="config">The config.</param>
/// <exception cref="System.ArgumentNullException">config</exception>
public ConfigManager(MapConfig config)
{
if (config == null)
{
throw new ArgumentNullException("config");
}
mainMap = config;
typeConverterStore = new TypeConverterStore();
}
/// <summary>
/// Overrides the type converter factory.
/// </summary>
/// <param name="converterStore">The type converter factory.</param>
/// <returns></returns>
public IConfigurationManager RegisterTypeConverterStore(ITypeConverterStore converterStore)
{
if (converterStore == null)
{
throw new ArgumentNullException("converterStore");
}
typeConverterStore = converterStore;
return(this);
}
public static object GetUnsavedValue(this PrimaryKeyProperty pk, Type type, ITypeConverterStore typeConverterStore)
{
if (pk == null)
{
return(null);
}
if (string.IsNullOrWhiteSpace(pk.UnsavedValueString))
{
if (type.IsValueType && type.IsPrimitive)
{
if (type == typeof(string))
{
return(string.Empty);
}
if ((type == typeof(int)) || (type == typeof(int?)))
{
return(0);
}
if ((type == typeof(long)) || (type == typeof(long?)))
{
return((long)0);
}
if ((type == typeof(short)) || (type == typeof(short?)))
{
return((short)0);
}
if ((type == typeof(double)) || (type == typeof(double?)))
{
return((double)0);
}
if ((type == typeof(float)) || (type == typeof(float?)))
{
return((float)0.0);
}
if ((type == typeof(Guid)) || (type == typeof(Guid?)))
{
return(Guid.Empty);
}
}
}
else
{
var convertMethod = typeConverterStore.GetConverterFactoryMethod(type);
var value = convertMethod(pk.UnsavedValueString);
return(value);
}
return(null);
}
/// <summary>
/// Initializes a new instance of the <see cref="EntitySerializer"/> class.
/// </summary>
/// <param name="settings">The settings.</param>
/// <param name="typeConverterStore">The type converter.</param>
public EntitySerializer(IDatabaseSettings settings, ITypeConverterStore typeConverterStore)
{
if (settings == null)
{
throw new ArgumentNullException("settings");
}
if (typeConverterStore == null)
{
typeConverterStore = new TypeConverterStore();
}
this.settings = settings;
TypeConverterStore = typeConverterStore;
}
/// <summary>
/// Initializes a new instance of the <see cref="DataExporterAdapter" /> class.
/// </summary>
/// <param name="importDialect">The dialect.</param>
/// <param name="exportDialect">The export dialect.</param>
/// <param name="dbConnector">The database connector.</param>
/// <param name="typeConverter">The type converter.</param>
/// <exception cref="System.ArgumentNullException">
/// </exception>
public DataExporterAdapter(SqlDialect importDialect, SqlDialect exportDialect, IDbConnector dbConnector, ITypeConverterStore typeConverter)
{
if (importDialect == null)
{
throw new ArgumentNullException(nameof(importDialect));
}
if (dbConnector == null)
{
throw new ArgumentNullException(nameof(dbConnector));
}
if (typeConverter == null)
{
throw new ArgumentNullException(nameof(typeConverter));
}
this.importDialect = importDialect;
this.exportDialect = exportDialect;
this.dbConnector = dbConnector;
this.typeConverter = typeConverter;
}
void ProcessRelation(Relation rel, object entity, EntityMap entityMap, InsertSqlInfo info, EntityAccessor entityAccessor, InsertSqlExecutionList executionList, ITypeConverterStore converterStore, ISession session)
{
if ((rel.RelationType != RelationshipType.ManyToOne) || rel.IsAutoGenerated)
{
return;
}
var paramName = ParameterNameBuilderHelper.QueryParamName(entityMap, rel.ColumnName);
//first let's see if property is null or not than we need to compare the primary key with unsaved value
PropertyAccessor pinf;
if (!entityAccessor.Properties.TryGetValue(rel.Name, out pinf))
{
throw new GoliathDataException("Property " + rel.Name + " not found in entity.");
}
object relValue = pinf.GetMethod(entity);
if (relValue != null)
{
//now we need to get unsaved value;
var relEntityType = relValue.GetType();
var relEntityMap = session.SessionFactory.DbSettings.Map.GetEntityMap(relEntityType.FullName);
var relEntAccessor = entityAccessorStore.GetEntityAccessor(relEntityType, relEntityMap);
PropertyAccessor relPinf;
if (!relEntAccessor.Properties.TryGetValue(rel.ReferenceProperty, out relPinf))
{
throw new GoliathDataException("Reference " + rel.ReferenceProperty + " not found in entity.");
}
if (relEntityMap.PrimaryKey != null)
{
foreach (var pk in relEntityMap.PrimaryKey.Keys)
{
object pkValue;
if (HasUnsavedValue(pk, relPinf, relValue, converterStore, out pkValue))
{
Build(relValue, relEntityType, relEntityMap, executionList, session);
}
QueryParam qParam;
if (!info.Parameters.TryGetValue(paramName, out qParam))
{
qParam = new QueryParam(paramName, rel.DbType);
info.Columns.Add(paramName, rel.ColumnName);
info.Parameters.Add(paramName, qParam);
}
qParam.Value = relPinf.GetMethod(relValue);
}
}
}
}
void ProcessManyToManyRelation(Relation rel, object entity, EntityMap entityMap, InsertSqlInfo info, EntityAccessor entityAccessor, InsertSqlExecutionList executionList, ITypeConverterStore converterStore, ISession session)
{
if ((rel.RelationType != RelationshipType.ManyToMany) || !rel.Inverse)
{
return;
}
PropertyAccessor pinf;
if (!entityAccessor.Properties.TryGetValue(rel.Name, out pinf))
{
throw new GoliathDataException("Property " + rel.Name + " not found in entity.");
}
var collection = pinf.GetMethod(entity) as System.Collections.IEnumerable;
int counter = 1;
if (collection != null)
{
foreach (var relObj in collection)
{
if (relObj == null)
{
continue;
}
var relEntityType = relObj.GetType();
var relEntityMap = session.SessionFactory.DbSettings.Map.GetEntityMap(relEntityType.FullName);
var relEntAccessor = entityAccessorStore.GetEntityAccessor(relEntityType, relEntityMap);
var paramName = ParameterNameBuilderHelper.QueryParamName(entityMap, rel.MapColumn + counter);
var mapParamName = ParameterNameBuilderHelper.QueryParamName(entityMap, rel.MapReferenceColumn + counter);
PropertyAccessor relPinf;
if (!relEntAccessor.Properties.TryGetValue(rel.ReferenceProperty, out relPinf))
{
throw new GoliathDataException("Reference " + rel.ReferenceProperty + " not found in entity.");
}
if (relEntityMap.PrimaryKey != null)
{
foreach (var pk in relEntityMap.PrimaryKey.Keys)
{
object pkValue;
if (HasUnsavedValue(pk, relPinf, relObj, converterStore, out pkValue))
{
Build(relObj, relEntityType, relEntityMap, executionList, session);
}
var manyToManyInfo = new InsertSqlInfo {
DelayExecute = true, TableName = rel.MapTableName
};
var param1 = new QueryParam(mapParamName, pk.Key.DbType)
{
Value = relPinf.GetMethod(relObj)
};
manyToManyInfo.Columns.Add(mapParamName, rel.MapReferenceColumn);
manyToManyInfo.Parameters.Add(mapParamName, param1);
PropertyAccessor mappedPinf;
if (!entityAccessor.Properties.TryGetValue(rel.MapPropertyName, out mappedPinf))
{
throw new GoliathDataException("Property " + rel.MapPropertyName + " not found in entity" + entityMap.FullName + ".");
}
var param2 = new QueryParam(paramName, rel.DbType)
{
Value = mappedPinf.GetMethod(entity)
};
manyToManyInfo.Columns.Add(paramName, rel.MapColumn);
manyToManyInfo.Parameters.Add(paramName, param2);
executionList.ExcuteStatement(session, manyToManyInfo, typeof(object));
}
}
counter++;
}
}
}
bool HasUnsavedValue(PrimaryKeyProperty pk, PropertyAccessor pinf, object entity, ITypeConverterStore converterStore, out object pkValue)
{
if (!pk.UnsavedValueProcessed)
{
pk.UnsavedValue = pk.GetUnsavedValue(pinf.PropertyType, converterStore);
pk.UnsavedValueProcessed = true;
}
pkValue = pinf.GetMethod(entity);
var rlt = object.Equals(pkValue, pk.UnsavedValue);
return(rlt);
}
