Class: RepresentationAnalyzer

Inherits:
Object
  • Object
show all
Defined in:
lib/wikidata/diff/representation_analyzer.rb

Class Method Summary collapse

Class Method Details

.isolate_representation_differences(current_content, parent_content) ⇒ Object 



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# File 'lib/wikidata/diff/representation_analyzer.rb', line 2

def self.isolate_representation_differences(current_content, parent_content)
    return {
    changed: [],
    removed: [],
    added: []
    } if current_content.nil? && parent_content.nil?

    if current_content
        current_representations = current_content['representations']
        if current_representations.nil? || current_representations.is_a?(Array)
            current_representations = {}
        end
    else
        current_representations = {}
    end
    
    if parent_content
        parent_representations = parent_content['representations'] 
        if parent_representations.nil? || parent_representations.is_a?(Array)
            parent_representations = {}
        end
    else
        parent_representations = {}
    end


    changed = []
    removed = []
    added = []


    # if parentid is 0, then add all labels as added and return it
    if parent_content.nil?
        current_representations.each do |lang, label|
            added << { lang: lang }
        end
        return {
            changed: changed,
            removed: removed,
            added: added
        }
    else

    
        # Iterate over each language in the current labels
        (current_representations || {}).each do |lang, current_representation|
            parent_representation =  parent_representations[lang]
        
            if parent_representation.nil?
                added << { lang: lang }
            elsif current_representation != parent_representation
                changed << { lang: lang }
            end
            end
        
            # Iterate over each language in the parent labels to find removed labels
        (parent_representations || {}).each do |lang, parent_representation|
            if current_representations[lang].nil?
                removed << { lang: lang }
            end
        end
    end

    {
    changed: changed,
    removed: removed,
    added: added
    }
end