private void ValidateUniqueCompositeKey(SPItemEventProperties properties, string[] compositeKeyFields)
{
// If the receiver isn't created with the data we need exit quickly (for performance reasons)
if (string.IsNullOrEmpty(properties.ReceiverData))
{
return;
}
SPItemEventDataCollection aftProps = properties.AfterProperties;
ListItemValidator validator = new ListItemValidator();
bool result = validator.MatchingFieldsExistInList(properties.List, aftProps, compositeKeyFields);
if (result)
{
StringBuilder errorMessage = new StringBuilder();
errorMessage.Append("Duplicate entry. The same composite key exists with the Field=Value: ");
for (int looper = 0; looper < compositeKeyFields.Length; looper++)
{
string key = compositeKeyFields[looper];
errorMessage.Append(key).Append('=').Append(aftProps[key]);
if (looper + 1 != compositeKeyFields.Length)
{
errorMessage.Append(", ");
}
}
properties.ErrorMessage = errorMessage.ToString();
properties.Cancel = true;
}
}
public void MatchingFieldsExistInList_ReturnsTrue_MatchingFieldsInList()
{
//Arrange
var validator = new ListItemValidator();
MSPList spList = new MSPList();
var spFields = new MSPFieldCollection();
var lookupField = new MSPField();
lookupField.TypeGet = () => SPFieldType.Lookup;
spList.FieldsGet = () => spFields;
spFields.GetFieldByInternalNameString = n => lookupField;
var dataCollection = new MSPItemEventDataCollection();
dataCollection.ItemGetString = (s) => "1";
var returnedItems = new MSPListItemCollection();
returnedItems.CountGet = () => 1;
spList.GetItemsSPQuery = q => returnedItems;
var fields = new List <string>();
fields.Add("Field1");
fields.Add("Field2");
//Act
bool result = validator.MatchingFieldsExistInList(spList, dataCollection, fields);
//Assert
Assert.IsTrue(result);
}
