private Expression BuildMasterDetailRelationExpression(ref bool isManyToMany, ref Expression memberChain, Type masterType, Type detailType, IEnumerable <Type> routeEntityTypes, int currentEntityIndex)
{
var masterIdProperty = detailType.GetPropertyIgnoreCase(masterType.Name + "id");
if (masterIdProperty != null)
{
var relation = Expression.Equal(
Expression.Property(memberChain, masterIdProperty),
Expression.Constant(Convert.ChangeType(_actionContextAccessor.GetRouteParamIgnoreCase(masterIdProperty.Name), masterIdProperty.PropertyType)));
var masterObjectProperty = detailType.GetProperty(masterType.Name);
if (masterObjectProperty == null)
{
throw new InvalidOperationException($"Type '{detailType.Name}' does not contain a '{masterType.Name}' property.");
}
AppendMemberChain(ref memberChain, masterObjectProperty);
return(relation);
}
isManyToMany = true;
return(BuildMasterDetailManyToManyRelationExpression(memberChain, masterType, detailType, routeEntityTypes, currentEntityIndex));
}
private async Task <RecordError> ValidateParentEntitiesExistenceAsync()
{
for (int i = 0; i <= _routeEntityTypes.Count() - 2; i++)
{
var entityType = _routeEntityTypes.ElementAt(i);
var id = Convert.ChangeType(_actionContextAccessor.GetRouteParamIgnoreCase(entityType.Name + "id"), entityType.BaseGenericType().GenericTypeArguments[0]);
var result = await ValidateEntityExistenceAsync(entityType, id);
if (result != null)
{
return(result);
}
}
return(await Task.FromResult <RecordError>(null));
}
public void FillForeignKeysFromRoute <TEntity>(TEntity entity)
{
foreach (var property in _propertyProvider.GetProperties(entity.GetType())
.Where(p => _actionContextAccessor.HasRouteParamIgnoreCase(p.Name)))
{
entity.SetPropertyValue(property.Name, Convert.ChangeType(_actionContextAccessor.GetRouteParamIgnoreCase(property.Name), property.PropertyType));
}
}