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Contents
module CouchPotato
module View
# A view to return model instances by searching its properties.
# If you pass reduce => true will count instead
#
# example:
# view :my_view, :key => :name
#
# in addition you can pass in conditions as a javascript string
# view :my_view_only_completed, :key => :name, :conditions => 'doc.completed = true'
class ModelViewSpec < BaseViewSpec
def view_parameters
_super = super
if _super[:reduce]
_super
else
{:include_docs => true, :reduce => false}.merge(_super)
end
end
def map_function
map_body do
"emit(#{formatted_key(key)}, 1);"
end
end
def reduce_function
"function(key, values) {
return sum(values);
}"
end
def process_results(results)
if count?
results['rows'].first.try(:[], 'value') || 0
else
results['rows'].map { |row| row['doc'] }
end
end
private
def map_body(&block)
"function(doc) {
if(doc.#{JSON.create_id} && doc.#{JSON.create_id} == '#{@klass.name}'#{conditions_js}) {
" + yield + "
}
}"
end
def conditions_js
" && (#{options[:conditions]})" if options[:conditions]
end
def count?
view_parameters[:reduce]
end
def key
options[:key]
end
def formatted_key(key)
if key.is_a? Array
'[' + key.map{|attribute| formatted_key(attribute)}.join(', ') + ']'
else
"doc['#{key}']"
end
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems