Module: Cul::Hydra::OreProxiesHelperBehavior

Defined in:
app/helpers/cul/hydra/ore_proxies_helper_behavior.rb

Instance Method Summary collapse

Instance Method Details



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 104

def breadcrumbs(opts=params, &block)
  proxy_id = opts[:proxy_id]
  id = opts[:id]
  links = []
  if proxy_id
    parts = proxy_id.split('/')
    id = id.sub('info:fedora/','')
    yield( {id: id, label: 'All Content'})
    # the first three parts are proxied graph prefixes "info:fedora/PID/DSID/..."
    3.upto(parts.size - 2).each do |ix|
      f_id = parts[0..ix].join('/')
      yield( {id: id, proxy_id: (f_id), label: parts[ix]})
    end
  end
end

#download_permitted?(dl_proxy, args = {}) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 75

def download_permitted?(dl_proxy, args={})
  return permitted_to? :fedora_content, dl_proxy, {:context => :download}
end

#facet_to_hash(facet_values) ⇒ Object 



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 17

def facet_to_hash(facet_values)
  facet_values ||= []
  hash = {}
  facet_values.each_with_index {|v,ix| hash[v] = facet_values[ix+1] if (ix % 2 == 0)}
  hash
end

#facets_for(query, args) ⇒ Object 



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 10

def facets_for(query, args)
  raw = args.delete(:raw)
  args = args.merge(q:query, qt:'standard',facet:true,rows:0)
  result = ActiveFedora::SolrService.instance.conn.get('select', :params=>args)
  return result if raw
  result['facet_counts']['facet_fields']
end

#hasModel_name ⇒ Object 



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 2

def hasModel_name
  @has_model ||= ActiveFedora::SolrService.solr_name('has_model', :symbol)
end

#proxies(opts = params, &block) ⇒ Object 



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 23

def proxies(opts=params, &block)
  proxy_in = opts[:id]
  proxy_uri = "info:fedora/#{proxy_in}"
  proxy_id = opts[:proxy_id]
  proxy_in_query = "proxyIn_ssi:#{RSolr.solr_escape(proxy_uri)}"
  f = [proxy_in_query]
  if proxy_id
    f << "belongsToContainer_ssi:#{RSolr.solr_escape(proxy_id)}"
  else
    f << "-belongsToContainer_ssi:*"
  end
  rows = opts[:limit] || '999'
  proxies = ActiveFedora::SolrService.query("*:*",{fq: f,rows:rows})
  if proxies.detect {|p| p["type_ssim"] && p["type_ssim"].include?(RDF::NFO[:'#FileDataObject'])}
    query = "{!join from=proxyFor_ssi to=identifier_ssim}#{f.join(' ')}"
    files = ActiveFedora::SolrService.query(query,rows:'999')
    proxies.each do |proxy|
      file = files.detect {|f| f['identifier_ssim'].include?(proxy['proxyFor_ssi'])}
      if file
        rels_int = file.fetch('rels_int_profile_tesim',[]).first
        props = rels_int ? JSON.load(rels_int) : {}
        props = props["#{proxy_uri}/content"] || {}
        props['pid'] = file['id']
        props['extent'] ||= file['extent_ssim'] if file['extent_ssim']
        proxy.merge!(props)
      end
    end
  end
  if proxies.detect {|p| p["type_ssim"] && p["type_ssim"].include?(RDF::NFO[:'#Folder'])}
    query = "{!join from=id  to=belongsToContainer_ssi}#{f.join(' ')}"
    folder_counts = facets_for(query,:"facet.field" => "belongsToContainer_ssi",:"facet.limit" => '999')
    unless ( belongsToContainer = facet_to_hash(folder_counts["belongsToContainer_ssi"])).empty?
      proxies.each do |proxy|
        if proxy["type_ssim"].include?(RDF::NFO[:'#Folder'])
          proxy['extent'] ||= belongsToContainer[proxy['id']]
        end
      end
    end
  end
  if block_given?
    proxies.each &block
  else
    proxies
  end
end

#proxies_file_system(opts = params, &block) ⇒ Object 



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 69

def proxies_file_system(opts=params, &block)
  content_tag(:ul, nil, class: 'file-system') do
    proxies(opts, &block)
  end
end

#proxy_extent(node) ⇒ Object 



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 87

def proxy_extent(node)
  extent = Array(node['extent']).first || '0'
  if node["type_ssim"].include? RDF::NFO[:'#FileDataObject']
    extent = extent.to_i
    if extent > 0
      pow = Math.log(extent,1024).floor
      pow = 3 if pow > 3
      pow = 0 if pow < 0
    else
      pow = 0
    end
    unit = ['B','KiB','MiB','GiB'][pow]
    "#{extent.to_i/(1024**pow)} #{unit}"
  else
    "#{extent.to_i} items"
  end
end

#proxy_to_download(node, args = {}) ⇒ Object 



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 79

def proxy_to_download(node, args={})
  dl_proxy = Cul::DownloadProxy.new(args)
  dl_proxy.content_models = node[hasModel_name()]
  dl_proxy.mime_type = node['format']
  dl_proxy.publisher = node[publisher_name()]
  dl_proxy
end

#publisher_name ⇒ Object 



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# File 'app/helpers/cul/hydra/ore_proxies_helper_behavior.rb', line 6

def publisher_name
  @has_model ||= ActiveFedora::SolrService.solr_name('publisher', :symbol)
end