urls = Url.all(:category => catID) Should be:
urls = Url.all(:category_id => catID) On Mon, Apr 20, 2009 at 10:44 PM, Dan D <[email protected]> wrote: > > Please help, I'm sure I'm over looking something silly, but I cannot > query by category. Everything works great except the last line returns > " Unknown property 'category'" error. Same if I use the (:conditions > => ...... ) syntax. > > Thanks, > Dan > > require 'rubygems' > require 'dm-core' > > > DataMapper.setup(:default, "sqlite3://#{Dir.pwd}/test.sqlite3") > > DataMapper::Logger.new(STDOUT, :debug) > # :off, :fatal, :error, :warn, :info, :debug > DataObjects::Sqlite3.logger = DataObjects::Logger.new(STDOUT, 0) > > class Url > include DataMapper::Resource > > property :id, Integer, :serial => true > property :url, Text, :nullable => false > > has n, :categorizations > has n, :categories, > :through => :categorizations, > :class_name => 'Category', > :mutable => true > end > > class Category > include DataMapper::Resource > property :id, Serial > property :name, String > > has n, :categorizations > has n, :urls, :through => :categorizations, :mutable => true > end > > class Categorization > include DataMapper::Resource > property :id, Serial > > belongs_to :category > belongs_to :url > end > > DataMapper.auto_migrate! > > cat1 = Category.new > cat1.name = "Cat1" > cat1.save > > cat2 = Category.new > cat2.name = "Cat2" > cat2.save > > Category.all > > url1 = Url.new > url1.url = "http://yahoo.com"; > url1.save > > url2 = Url.new > url2.url = "http://google.com"; > url2.save > > catID = Category.first.id > urlID = Url.first.id > > Categorization.create(:category_id => catID, :url_id => urlID) > > urls = Url.all(:category => catID) > ArgumentError: Unknown property 'category' > from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/query.rb: > 462:in `append_condition' > from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/query.rb: > 246:in `initialize' > from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/query.rb: > 245:in `each' > from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/query.rb: > 245:in `initialize' > from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/model.rb: > 431:in `new' > from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/model.rb: > 431:in `scoped_query' > from /usr/lib/ruby/gems/1.8/gems/dm-core-0.9.11/lib/dm-core/model.rb: > 256:in `all' > from (irb):66 > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "DataMapper" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/datamapper?hl=en -~----------~----~----~----~------~----~------~--~---
