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CVN-155 RDF: Include predicates in HTML replacing #745

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Merged
robvandenbogaard merged 1 commit into from
Jan 21, 2025
Merged

CVN-155 RDF: Include predicates in HTML replacing #745

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30 changes: 20 additions & 10 deletions modules/mod_ginger_rdf/models/m_rdf_triple.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -170,29 +170,39 @@ is_empty_object(#rdf_value{value = Value}) ->
is_empty_object(_) ->
false.

% Like 'replace_html/2' with 'z_html:strip/1' being the chosen modifier.
replace_html(In) -> replace_html(In, fun z_html:strip/1).
% Like 'replace_html/2' with 'z_html:strip/1' being the chosen modifier
% (regardless of predicate).
replace_html(In) -> replace_html(In, fun(Html, _Predicate) -> z_html:strip(Html) end).

% Replaces all html values with the given modifier function, recursively, from
% an 'rdf_value', an 'rdf_resource', a 'triple' or a list of either;
% returns any other value unaltered.
% The modifier function is called with two arguments:
% 1. the HTML text of an 'rdf_value'
% 2. the predicate of which it's an object (if any, 'undefined' otherwise)
% Note: the type of the output is always the same as the input's.
replace_html(List, ReplaceFun) when is_list(List) ->
replace_html(In, ReplaceFun) ->
replace_html(In, undefined, ReplaceFun).

% Recursive part of 'replace_html/2'.
% This carries an additional parameter for the predicate, which is discarded
% in every case except when going over an 'rdf_value' from a 'triple'.
replace_html(List, _Predicate, ReplaceFun) when is_list(List) ->
lists:map(fun(Item) -> replace_html(Item, ReplaceFun) end, List);
replace_html(Triple, ReplaceFun) when is_record(Triple, triple) ->
NewObject = replace_html(Triple#triple.object, ReplaceFun),
replace_html(Triple, _Predicate, ReplaceFun) when is_record(Triple, triple) ->
NewObject = replace_html(Triple#triple.object, Triple#triple.predicate, ReplaceFun),
Triple#triple{object=NewObject};
replace_html(Resource, ReplaceFun) when is_record(Resource, rdf_resource) ->
replace_html(Resource, _Predicate, ReplaceFun) when is_record(Resource, rdf_resource) ->
NewTriples = replace_html(Resource#rdf_resource.triples, ReplaceFun),
Resource#rdf_resource{triples=NewTriples};
replace_html(Value, ReplaceFun) when is_record(Value, rdf_value) ->
replace_html(Value, Predicate, ReplaceFun) when is_record(Value, rdf_value) ->
ValueTerm = Value#rdf_value.value,
NewValueTerm =case is_html_value(ValueTerm) of
true -> ReplaceFun(ValueTerm);
NewValueTerm = case is_html_value(ValueTerm) of
true -> ReplaceFun(ValueTerm, Predicate);
false -> replace_html(ValueTerm, ReplaceFun)
end,
Value#rdf_value{value=NewValueTerm};
replace_html(Other, _ReplaceFun) ->
replace_html(Other, _Predicate, _ReplaceFun) ->
Other.

% Returns 'true' iff the input is a binary string of html, 'false' otherwise.
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