public bool ActivateFor(Row row)
{
if (ReferenceEquals(null, Target))
return false;
attr = Target.GetAttribute<MasterDetailRelationAttribute>();
if (attr == null)
return false;
var rowListType = Target.ValueType;
if (!rowListType.IsGenericType ||
rowListType.GetGenericTypeDefinition() != typeof(List<>))
{
throw new ArgumentException(String.Format("Field '{0}' in row type '{1}' has a MasterDetailRelationAttribute " +
"but its property type is not a generic List (e.g. List<Row>)!",
Target.PropertyName ?? Target.Name, row.GetType().FullName));
}
var rowType = rowListType.GetGenericArguments()[0];
if (rowType.IsAbstract ||
!typeof(Row).IsAssignableFrom(rowType))
{
throw new ArgumentException(String.Format(
"Field '{0}' in row type '{1}' has a MasterDetailRelationAttribute " +
"but its property type is not a generic list of rows (e.g. List<Row>)!",
Target.PropertyName ?? Target.Name, row.GetType().FullName));
}
rowListFactory = FastReflection.DelegateForConstructor<IList>(rowListType);
rowFactory = FastReflection.DelegateForConstructor<Row>(rowType);
listHandlerFactory = FastReflection.DelegateForConstructor<IListRequestProcessor>(
typeof(ListRequestHandler<>).MakeGenericType(rowType));
saveHandlerFactory = FastReflection.DelegateForConstructor<ISaveRequestProcessor>(
typeof(SaveRequestHandler<>).MakeGenericType(rowType));
saveRequestFactory = FastReflection.DelegateForConstructor<ISaveRequest>(
typeof(SaveRequest<>).MakeGenericType(rowType));
deleteHandlerFactory = FastReflection.DelegateForConstructor<IDeleteRequestProcessor>(
typeof(DeleteRequestHandler<>).MakeGenericType(rowType));
var detailRow = rowFactory();
foreignKeyField = detailRow.FindFieldByPropertyName(attr.ForeignKey) ??
detailRow.FindField(attr.ForeignKey);
if (ReferenceEquals(foreignKeyField, null))
throw new ArgumentException(String.Format("Field '{0}' doesn't exist in row of type '{1}'." +
"This field is specified for a master detail relation in field '{2}' of row type '{3}'.",
attr.ForeignKey, detailRow.GetType().FullName,
Target.PropertyName ?? Target.Name, row.GetType().FullName));
return true;
}
public bool ActivateFor(Row row)
{
if (ReferenceEquals(null, Target))
return false;
attr = Target.GetAttribute<MasterDetailRelationAttribute>();
if (attr == null)
return false;
var rowListType = Target.ValueType;
if (!rowListType.GetIsGenericType() ||
rowListType.GetGenericTypeDefinition() != typeof(List<>))
{
throw new ArgumentException(String.Format("Field '{0}' in row type '{1}' has a MasterDetailRelationAttribute " +
"but its property type is not a generic List (e.g. List<Row>)!",
Target.PropertyName ?? Target.Name, row.GetType().FullName));
}
var rowType = rowListType.GetGenericArguments()[0];
if (rowType.GetIsAbstract() ||
!typeof(Row).IsAssignableFrom(rowType))
{
throw new ArgumentException(String.Format(
"Field '{0}' in row type '{1}' has a MasterDetailRelationAttribute " +
"but its property type is not a generic list of rows (e.g. List<Row>)!",
Target.PropertyName ?? Target.Name, row.GetType().FullName));
}
rowListFactory = FastReflection.DelegateForConstructor<IList>(rowListType);
rowFactory = FastReflection.DelegateForConstructor<Row>(rowType);
listHandlerFactory = FastReflection.DelegateForConstructor<IListRequestProcessor>(
typeof(ListRequestHandler<>).MakeGenericType(rowType));
saveHandlerFactory = FastReflection.DelegateForConstructor<ISaveRequestProcessor>(
typeof(SaveRequestHandler<>).MakeGenericType(rowType));
saveRequestFactory = FastReflection.DelegateForConstructor<ISaveRequest>(
typeof(SaveRequest<>).MakeGenericType(rowType));
deleteHandlerFactory = FastReflection.DelegateForConstructor<IDeleteRequestProcessor>(
typeof(DeleteRequestHandler<>).MakeGenericType(rowType));
var detailRow = rowFactory();
foreignKeyField = detailRow.FindFieldByPropertyName(attr.ForeignKey) ??
detailRow.FindField(attr.ForeignKey);
if (ReferenceEquals(foreignKeyField, null))
throw new ArgumentException(String.Format("Field '{0}' doesn't exist in row of type '{1}'." +
"This field is specified for a master detail relation in field '{2}' of row type '{3}'.",
attr.ForeignKey, detailRow.GetType().FullName,
Target.PropertyName ?? Target.Name, row.GetType().FullName));
this.foreignKeyCriteria = new Criteria(foreignKeyField.PropertyName ?? foreignKeyField.Name);
if (!string.IsNullOrEmpty(attr.FilterField))
{
this.filterField = detailRow.FindFieldByPropertyName(attr.FilterField) ?? detailRow.FindField(attr.FilterField);
if (ReferenceEquals(null, this.filterField))
throw new ArgumentException(String.Format("Field '{0}' doesn't exist in row of type '{1}'." +
"This field is specified for a master detail relation as FilterField in field '{2}' of row type '{3}'.",
attr.FilterField, detailRow.GetType().FullName,
Target.PropertyName ?? Target.Name, row.GetType().FullName));
this.filterCriteria = new Criteria(filterField.PropertyName ?? filterField.Name);
this.filterValue = filterField.ConvertValue(attr.FilterValue, CultureInfo.InvariantCulture);
if (this.filterValue == null)
{
this.filterCriteria = this.filterCriteria.IsNull();
this.filterCriteriaT0 = this.filterField.IsNull();
}
else
{
this.filterCriteria = this.filterCriteria == new ValueCriteria(this.filterValue);
this.filterCriteriaT0 = this.filterField == new ValueCriteria(this.filterValue);
}
}
this.includeColumns = new HashSet<string>();
if (!string.IsNullOrEmpty(attr.IncludeColumns))
foreach (var s in attr.IncludeColumns.Split(','))
{
var col = s.TrimToNull();
if (col != null)
this.includeColumns.Add(col);
}
return true;
}
