public override bool TryApply(IViewConfiguration configuration, IDataAdapterDependencies dependencies, IDictionary <string, string> customParameters, Fetch fetch)
{
if (!IsApplicable(configuration))
{
return(false);
}
// This should be the ID of the parent opportunity for the opportunity product. If it's
// null, we can't do any filtering.
if (configuration.ModalLookupFormReferenceEntityId == null)
{
return(false);
}
// Filter out non-published products,
fetch.AddFilter(new Filter
{
Conditions = new List <Condition>
{
new Condition("statecode", ConditionOperator.Equal, 0)
}
});
// Use distinct because you can have multiple price list items per product in a price list.
fetch.Distinct = true;
// Add the primary ID attribute explicitly because that allows Entity.Id to be set properly
// when doing a distinct query.
fetch.Entity.AddAttributes("productid");
var productPriceLevelFilter = new Filter
{
Type = LogicalOperator.And,
Conditions = new List <Condition>
{
new Condition(
"pricelevelid",
ConditionOperator.Equal,
// If the opportunity doesn't have a price list, or we fail to get it for some reason, filter
// by the empty GUID so that nothing will be returned.
GetPriceListId(dependencies, configuration.ModalLookupFormReferenceEntityId.Value).GetValueOrDefault(Guid.Empty))
}
};
// Filter by the selected unit of measure if available,
string uomIdParameter;
Guid uomId;
if (customParameters != null &&
customParameters.TryGetValue("uomid", out uomIdParameter) &&
Guid.TryParse(uomIdParameter, out uomId))
{
productPriceLevelFilter.Conditions.Add(new Condition("uomid", ConditionOperator.Equal, uomId));
}
// Filter by price list items in parent opporunity price list.
fetch.AddLink(new Link
{
Name = "productpricelevel",
FromAttribute = "productid",
ToAttribute = "productid",
Type = JoinOperator.Inner,
Filters = new List <Filter>
{
productPriceLevelFilter
}
});
return(true);
}
/// <summary>
/// Retrieves the list of Products available to the current user
/// </summary>
/// <returns>Product entity collection</returns>
public List <Guid> GetProducts()
{
// If anonymous user, return nothing
if (this.CurrentUserEntityReference == null)
{
return(Enumerable.Empty <Guid>().ToList());
}
var productFetch = new Fetch
{
Distinct = true,
Entity = new FetchEntity
{
Name = "product",
Attributes = new List <FetchAttribute>
{
new FetchAttribute("productid")
},
Filters = new List <Filter>()
}
};
var associatedToAccountOrContactFilter = new Filter
{
Type = LogicalOperator.Or,
Conditions = new List <Condition>(),
Filters = new List <Filter>()
};
// Get alias generator instance to maintain alias names consistency
// via postfix incrementation
var linkEntityAliasGenerator = LinkEntityAliasGenerator.CreateInstance();
// Retrieve Contact to Product relationships and build Entity Permission links
var contactToProductRelationshipNamesCollection =
this.GetDelimitedSiteSettingValueCollection(ContactToProductRelationshipNames, ContactToProductFallbackRelationshipName);
var contactLink = this.BuildLinksAndFilterChain(
contactToProductRelationshipNamesCollection, productFetch, associatedToAccountOrContactFilter,
this.CurrentUserEntityReference, null, OwningCustomerType.Contact, linkEntityAliasGenerator);
productFetch.AddLink(contactLink);
if (this.ParentCustomerEntityReference != null && this.ParentCustomerEntityReference.LogicalName == "contact")
{
// Retrieve parent Contact to Product relationships and build Entity Permission links
var parentContactLink = this.BuildLinksAndFilterChain(
contactToProductRelationshipNamesCollection, productFetch, associatedToAccountOrContactFilter,
this.ParentCustomerEntityReference, null, OwningCustomerType.Contact, linkEntityAliasGenerator);
productFetch.AddLink(parentContactLink);
}
else if (this.ParentCustomerEntityReference != null && this.ParentCustomerEntityReference.LogicalName == "account")
{
// Retrieve Account to Product relationships and build Entity Permission links
var accountToProductRelationshipNamesCollection =
this.GetDelimitedSiteSettingValueCollection(AccountToProductRelationshipNames, AccountToProductFallbackRelationshipName);
var accountLink = this.BuildLinksAndFilterChain(
accountToProductRelationshipNamesCollection, productFetch, associatedToAccountOrContactFilter,
null, this.ParentCustomerEntityReference, OwningCustomerType.Account, linkEntityAliasGenerator);
productFetch.AddLink(accountLink);
}
var accountOrContactNotNullFilter = new Filter
{
Type = LogicalOperator.Or,
Conditions =
associatedToAccountOrContactFilter.Conditions.Select(
condition =>
new Condition
{
EntityName = condition.EntityName,
Attribute = condition.Attribute,
Operator = ConditionOperator.NotNull
}).ToList()
};
// This is the AND Filter that will ensure state is Active and the Product is joined to either Contact or Account
productFetch.AddFilter(new Filter
{
Type = LogicalOperator.And,
Conditions = new List <Condition>
{
new Condition("statecode", ConditionOperator.Equal, 0)
},
Filters = new List <Filter>
{
accountOrContactNotNullFilter,
associatedToAccountOrContactFilter,
}
});
var productsCollection = productFetch.Execute(this.Portal.ServiceContext as IOrganizationService);
return(productsCollection.Entities.Select(x => x.Id).ToList());
}