private bool AllowsDifferenceChange(LookupRollup rollup)
{
//todo implement diffs for links?
return
(new[] { RollupType.Count, RollupType.Sum }.Contains(rollup.RollupType) &&
rollup.LinkEntity == null);
}
private void ExecuteDependencyPluginRefresh(XrmEntityPlugin plugin, LookupRollup rollup)
{
var idsRequireRefresh = GetIdsRequiringRefresh(plugin, rollup);
foreach (var id in idsRequireRefresh)
{
RefreshRollup(id, rollup);
}
}
public string GetLookupFetch(LookupRollup rollup, Guid id)
{
string RollupFieldNode;
switch (rollup.RollupType)
{
case RollupType.Exists:
{
RollupFieldNode = "<attribute name='" + rollup.FieldRolledup +
"' aggregate='count' distinct = 'true' alias='" + FetchAlias + "'/>";
break;
}
case RollupType.Count:
{
RollupFieldNode = "<attribute name='" + rollup.FieldRolledup + "' aggregate='count' alias='" +
FetchAlias + "'/>";
break;
}
case RollupType.Sum:
{
RollupFieldNode = "<attribute name='" + rollup.FieldRolledup + "' aggregate='sum' alias='" +
FetchAlias + "'/>";
break;
}
default:
{
throw new ArgumentOutOfRangeException("Fetch Rollup not implemented for " + rollup.RollupType);
}
}
return
("<fetch version='1.0' aggregate='true' output-format='xml-platform' mapping='logical' distinct='false'>"
+ "<entity name='" + rollup.RecordTypeRolledup + "'>"
+ RollupFieldNode
+ "<filter type='and'>"
+ "<condition attribute='" + rollup.LookupName + "' operator='eq' uiname='' uitype='" + rollup.RecordTypeWithRollup +
"' value='" + id + "' />"
+ (rollup.FieldRolledup != null ? GetConditionFetchNode(new ConditionExpression(rollup.FieldRolledup, ConditionOperator.NotNull)) : null)
+ String.Join("", rollup.Filters.Select(GetConditionFetchNode))
+ "</filter>"
+ String.Join("", GetLinkedEntityFetchNode(rollup.LinkEntity))
+ "</entity>"
+ "</fetch>");
}
private QueryExpression GetRollupQueryForLookup(LookupRollup rollup, Guid id)
{
var query = new QueryExpression(rollup.RecordTypeRolledup);
query.Criteria.AddCondition(rollup.LookupName, ConditionOperator.Equal, id);
foreach (var condition in rollup.Filters)
{
query.Criteria.AddCondition(condition);
}
query.ColumnSet.AddColumn(rollup.LookupName);
if (rollup.FieldRolledup != null)
{
query.ColumnSet.AddColumn(rollup.FieldRolledup);
query.Criteria.AddCondition(new ConditionExpression(rollup.FieldRolledup, ConditionOperator.NotNull));
}
if (rollup.LinkEntity != null)
{
query.LinkEntities.Add(rollup.LinkEntity);
}
return(query);
}
public IEnumerable <Guid> GetIdsRequiringRefresh(XrmEntityPlugin plugin, LookupRollup rollup)
{
var idsRequireRefresh = new List <Guid>();
var isDependencyChanging = false;
if (
(plugin.MessageName == PluginMessage.Create || plugin.MessageName == PluginMessage.Update ||
plugin.MessageName == PluginMessage.Delete) &&
plugin.Stage == PluginStage.PostEvent &&
plugin.Mode == PluginMode.Synchronous
)
{
switch (plugin.MessageName)
{
case PluginMessage.Delete:
{
isDependencyChanging = plugin.PreImageEntity.Contains(rollup.LookupName) &&
plugin.MeetsConditionsChanging(rollup.Filters);
break;
}
case PluginMessage.Update:
{
if (plugin.FieldChanging(rollup.LookupName) ||
(rollup.FieldRolledup != null && plugin.FieldChanging(rollup.FieldRolledup)) ||
(rollup.LinkEntity != null && plugin.FieldChanging(rollup.LinkEntity.LinkFromAttributeName)))
{
isDependencyChanging = true;
}
else
{
isDependencyChanging = plugin.MeetsConditionsChanging(rollup.Filters);
}
break;
}
case PluginMessage.Create:
{
isDependencyChanging =
plugin.TargetEntity.Contains(rollup.LookupName) &&
(rollup.FieldRolledup == null || plugin.TargetEntity.Contains(rollup.FieldRolledup)) &&
plugin.MeetsConditionsChanging(rollup.Filters);
break;
}
}
if (isDependencyChanging)
{
object preImageLookup = plugin.PreImageEntity.GetLookupGuid(rollup.LookupName);
object contextLookup = null;
if (plugin.MessageName == PluginMessage.Create || plugin.MessageName == PluginMessage.Update)
{
contextLookup = plugin.TargetEntity.GetLookupGuid(rollup.LookupName);
}
var processPreImage = false;
var processContextGuid = false;
//If they aren't the same do both
if (!XrmEntity.FieldsEqual(preImageLookup, contextLookup))
{
processPreImage = true;
processContextGuid = true;
}
//else just do the first not null one
else
{
if (preImageLookup != null)
{
processPreImage = true;
}
else
{
processContextGuid = true;
}
}
if (processPreImage && preImageLookup != null)
{
idsRequireRefresh.Add((Guid)preImageLookup);
}
if (processContextGuid && contextLookup != null)
{
idsRequireRefresh.Add((Guid)contextLookup);
}
}
}
return(idsRequireRefresh);
}
public object GetRollup(LookupRollup rollup, Guid id)
{
object newValue = null;
switch (rollup.RollupType)
{
case RollupType.Exists:
{
//if the Rollup returns a result > 0 then one exists
var fetch = GetLookupFetch(rollup, id);
var result = XrmService.Fetch(fetch);
newValue = result.Any() &&
XrmEntity.GetInt(result.First().GetFieldValue(FetchAlias)) > 0;
break;
}
case RollupType.Count:
{
var result = XrmService.Fetch(GetLookupFetch(rollup, id));
if (result.Any())
{
newValue = result.ElementAt(0).GetFieldValue(FetchAlias);
}
break;
}
case RollupType.Sum:
{
var result = XrmService.Fetch(GetLookupFetch(rollup, id));
if (result.Any())
{
newValue = result.ElementAt(0).GetFieldValue(FetchAlias);
}
break;
}
case RollupType.Min:
{
var query = GetRollupQueryForLookup(rollup, id);
query.AddOrder(rollup.FieldRolledup, OrderType.Ascending);
var minRecord = XrmService.RetrieveFirst(query);
newValue = minRecord.GetField(rollup.FieldRolledup);
break;
}
case RollupType.CSV:
case RollupType.PSV:
{
var query = GetRollupQueryForLookup(rollup, id);
query.AddOrder(rollup.FieldRolledup, OrderType.Ascending);
var records = XrmService.RetrieveAll(query);
var labels =
records.Select(e => e.GetField(rollup.FieldRolledup)).
ToArray();
if (rollup.RollupType == RollupType.CSV)
{
newValue = string.Join(", ", labels);
}
else
{
newValue = string.Join("|", labels);
}
newValue = ((string)newValue).Left(1000);
break;
}
}
if (newValue == null && rollup.NullAmount != null)
{
newValue = rollup.NullAmount;
}
if (newValue != null && rollup.ObjectType != null)
{
if (rollup.ObjectType == typeof(decimal))
{
newValue = Convert.ToDecimal(newValue.ToString());
}
}
return(newValue);
}
public void RefreshRollup(Guid id, LookupRollup rollup)
{
var newValue = GetRollup(rollup, id);
XrmService.SetFieldIfChanging(rollup.RecordTypeWithRollup, id, rollup.RollupField, newValue);
}