public ExpressionHelper(Expression predicateExpression, SqlGeneratorHelper parameterNameGenerator)
{
if (predicateExpression == null)
{
throw new Exception("Predicate expression can't be null.");
}
if (parameterNameGenerator == null)
{
parameterNameGenerator = new SqlGeneratorHelper();
}
_paramNameGenerator = parameterNameGenerator;
this.Visit(predicateExpression);
}
public void Dispose()
{
_paramNameGenerator = null;
_predicateString = null;
_comparer = null;
}
private void MapTablesToEntities(IDbConnection dbconnection, Assembly[] assembliesOfModelTypes = null)
{
Assembly[] assemblies;
var sqlHelper = new SqlGeneratorHelper();
var entityReader = new DefaultEntityReader();
var service = PluralizationService.CreateService(CultureInfo.CurrentCulture);
Tables = DefaultDatabaseMapper.MapDatabase(dbconnection, TargetDatabases);
if (assembliesOfModelTypes != null)
{
assemblies = assembliesOfModelTypes;
}
else
{
assemblies = AppDomain.CurrentDomain.GetAssemblies();
}
var entityTypes = entityReader.ReadEntities(assemblies).ToList();
var typeDefault = default(Type);
foreach (var dbObject in TargetDatabases)
{
var dbTables = Tables.Where(t => string.Equals(t.Database, dbObject.Name,
StringComparison.InvariantCultureIgnoreCase))
.ToArray();
foreach (var tbl in dbTables)
{
Type selectedType = null;
var typeName = "";
if (dbObject.TableNamesInPlural)
{
typeName = service.Singularize(tbl.Name);
}
else
{
typeName = tbl.Name;
}
if (!string.IsNullOrEmpty(dbObject.NameSpace))
{
selectedType = entityTypes.FirstOrDefault(t => string.Equals(t.Name, typeName,
StringComparison.CurrentCultureIgnoreCase) &&
string.Equals(t.Namespace, dbObject.NameSpace,
StringComparison.CurrentCultureIgnoreCase));
}
else
{
selectedType = entityTypes.FirstOrDefault(t => string.Equals(t.Name, typeName,
StringComparison.CurrentCultureIgnoreCase));
}
if (selectedType == typeDefault)
{
#if DEBUG
Debug.WriteLine(string.Format("Table {0}.{1}.{2} was not mapped", tbl.Database, tbl.Schema, tbl.Name));
#endif
continue;
}
var tableAlias = sqlHelper.GetTableAlias(selectedType);
MapEntity(selectedType, tbl.Name, tableAlias);
entityTypes.RemoveAt(entityTypes.IndexOf(selectedType));
}
}
}
