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Contents
module ForestAdminDatasourceToolkit
module Components
module Query
class Projection < Array
include ForestAdminDatasourceToolkit::Utils
def with_pks(collection)
ForestAdminDatasourceToolkit::Utils::Schema.primary_keys(collection).each do |key|
push(key) unless include?(key)
end
relations.each do |relation, projection|
schema = collection.fields[relation]
association = collection.datasource.collection(schema.foreign_collection)
projection_with_pks = projection.with_pks(association).nest(prefix: relation)
projection_with_pks.each { |field| push(field) unless include?(field) }
end
self
end
def columns
reject { |field| field.include?(':') }
end
def relations
each_with_object({}) do |path, memo|
next unless path.include?(':')
split_path = path.split(':')
relation = split_path[0]
memo[relation] = Projection.new([split_path[1]].union(memo[relation] || []))
end
end
def nest(prefix: nil)
prefix ? Projection.new(map { |path| "#{prefix}:#{path}" }) : self
end
end
end
end
end
Version data entries
3 entries across 3 versions & 1 rubygems