public async Task <TaxonomyValidationResult> Validate(TaxonomyPart part)
{
if (part.TermContentType != ContentTypes.PageLocation)
{
return(new TaxonomyValidationResult(true, null));
}
List <string> errors = new List <string>();
//make sure nothing has moved that has associated pages anywhere down the tree
List <ContentItem> allPages = await _contentItemsService.GetActive(ContentTypes.Page);
JArray?terms = _taxonomyHelper.GetAllTerms(JObject.FromObject(part.ContentItem));
if (terms != null)
{
foreach (JObject term in terms)
{
dynamic?originalParent = _taxonomyHelper.FindParentTaxonomyTerm(term, JObject.FromObject(part.ContentItem));
dynamic?newParent = _taxonomyHelper.FindParentTaxonomyTerm(term, JObject.FromObject(part));
if (originalParent == null || newParent == null)
{
throw new InvalidOperationException($"Could not find {(originalParent == null ? "original" : "new")} parent taxonomy term for {term}");
}
if (newParent?.ContentItemId != null && newParent?.ContentItemId != originalParent?.ContentItemId)
{
//find all child terms down the taxonomy tree
var childTermsFromTree = _taxonomyHelper.GetAllTerms(term);
if (allPages.Any(x => (string)x.Content.Page.PageLocations.TermContentItemIds[0] == (string)term["ContentItemId"] ! || childTermsFromTree.Any(t => (string)t["ContentItemId"] ! == (string)x.Content.Page.PageLocations.TermContentItemIds[0])))
{
errors.Add("You cannot move a Page Location which has associated Pages linked to it, or any of its children.");
}
foreach (var validator in _validators)
{
(bool validated, string errorMessage) =
await validator.ValidateUpdate(term, JObject.FromObject(part));
if (!validated)
{
errors.Add(errorMessage);
}
}
//make sure display text doesn't clash with any other term at this level
JArray parentTerms = _taxonomyHelper.GetTerms(JObject.FromObject(newParent));
if (parentTerms?.Any(x => (string)x["ContentItemId"] ! != (string)term["ContentItemId"] ! && (string)x["DisplayText"] ! == (string)term["DisplayText"] !) ?? false)
{
errors.Add("Terms at the same hierarchical position must have unique titles.");
}
}
}
}
return(new TaxonomyValidationResult(!errors.Any(), errors));
}
public async Task <(bool, string)> ValidateUpdate(JObject term, JObject taxonomy)
{
if (!term.ContainsKey("PageLocation"))
{
return(true, string.Empty);
}
List <ContentItem> allPages = await _contentItemsService.GetActive(ContentTypes.Page);
//find all child terms down the taxonomy tree
var childTermsFromTree = _taxonomyHelper.GetAllTerms(term);
if (allPages.Any(x => (string)x.Content.Page.PageLocations.TermContentItemIds[0] == (string)term["ContentItemId"] ! || childTermsFromTree.Any(t => (string)t["ContentItemId"] ! == (string)x.Content.Page.PageLocations.TermContentItemIds[0])))
{
return(false, "Page Locations with pages associated to them or any of their children cannot be changed or deleted.");
}
return(true, string.Empty);
}
