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module PublishMyData
# A theme for datasets
class Theme
include Tripod::Resource
include BasicFeatures
class << self
def theme_graph
RDF::URI.new("http://#{PublishMyData.local_domain}/graph/concept-scheme/themes")
end
def by_slug(slug)
Theme.where("?uri <#{RDF::SKOS.notation}> '#{slug}'").first
end
end
rdf_type RDF::SITE.Theme
graph_uri Theme.theme_graph
field :slug, RDF::SKOS.notation
def datasets_count
PublishMyData::SparqlQuery.new(datasets_query_str).count
end
def datasets_query_str
# this is similar to the deprecation_last_query_str, but with a theme restriction
"
SELECT ?uri where {
# this bit is all the non-deprecated ones
{
SELECT * WHERE {
?uri a <http://publishmydata.com/def/dataset#Dataset> .
?uri <#{RDF::DCAT.theme}> <#{self.uri.to_s}> . # limit to this theme
?uri <#{RDF::DC.title}> ?title . # select title so we can order
MINUS {
?uri a <http://publishmydata.com/def/dataset#DeprecatedDataset>
}
}
ORDER BY ?title
}
UNION
# this bit is all the deprecated ones
{
SELECT * WHERE {
?uri a <http://publishmydata.com/def/dataset#DeprecatedDataset> .
?uri <#{RDF::DCAT.theme}> <#{self.uri.to_s}> . # limit to this theme
?uri <#{RDF::DC.title}> ?title . # select title so we can order
}
ORDER BY ?title
}
}
"
end
def to_param
self.slug
end
end
end
Version data entries
39 entries across 39 versions & 1 rubygems