Hi I am trying to use the RSS classes from "rss/2.0" and everything works but I want to know what attributes and properties I can get at from each of the classes I am getting back. For example, the class has a "channel" which I can tell has a "title" attribute (because it works when I query it :) but I would really like a list of every attribute that is supported! I found documentation for it here: http://www.ruby-doc.org/stdlib/libdoc/rss/rdoc/ But unless I am missing it, taking the example I used before and looking at the doc for RSS::Rss::Channel: http://www.ruby-doc.org/stdlib/libdoc/rss/rdoc/classes/RSS/Rss/Channel.html It doesnt tell me the basics like what attributes and methods it has. Am I missing something? What is the best way at getting at this information or am I going to have to plough through the source? Dave -- Posted via http://www.ruby-forum.com/.
I haven''t used the RSS/2.0 lib, I am using the FeedTools plugin and so far it works perfectly for the feeds I have tested. The problem you are asking is a generic one, like how can I discover what methods are available for an object. You can ask the object itself, "object.methods" will list all methods. Coming from the Java world sometimes I miss the "." ;) But Ruby brought the fun back :) Generally I play with the "ruby console" to play with the objects and it helps quickly to discover what''s there and how to use it. _Hari -- View this message in context: http://www.nabble.com/RSS%3A%3AParser-Documentation-tf1872507.html#a5118388 Sent from the RubyOnRails Users forum at Nabble.com.
Thanks for the response Nari, I have tried that but taking my example above... is this really the best documentation I can get for these inbuilt classes: => ["==", "===", "=~", "__id__", "__send__", "`", "b64encode", "blank?", "categories", "category", "category=", "class", "clone", "cloud", "cloud=", "convert", "converter=", "copy_instance_variables_from", "copyright", "copyright=", "daemonize", "date", "date=", "dclone", "decode64", "decode_b", "description", "description=", "display", "do_validate", "do_validate=", "docs", "docs=", "dup", "enable_warnings", "encode64", "eql?", "equal?", "extend", "extend_with_included_modules_from", "extended_by", "freeze", "frozen?", "full_name", "generator", "generator=", "hash", "id", "image", "image=", "indent_size", "inspect", "instance_eval", "instance_exec", "instance_of?", "instance_values", "instance_variable_get", "instance_variable_set", "instance_variables", "is_a?", "item", "item=", "items", "kind_of?", "language", "language=", "lastBuildDate", "lastBuildDate=", "link", "link=", "load", "managingEditor", "managingEditor=", "method", "methods", "nil?", "object_id", "other_element", "private_methods", "protected_methods", "pubDate", "pubDate=", "public_methods", "rating", "rating=", "remove_subclasses_of", "require", "require_gem", "require_gem_with_options", "require_library_or_gem", "respond_to?", "returning", "send", "set_category", "set_item", "setup_maker", "silence_stderr", "silence_stream", "silence_warnings", "singleton_methods", "skipDays", "skipDays=", "skipHours", "skipHours=", "subclasses_of", "suppress", "tag_name", "taguri", "taguri=", "taint", "tainted?", "textInput", "textInput=", "title", "title=", "to_a", "to_json", "to_s", "to_yaml", "to_yaml_properties", "to_yaml_style", "ttl", "ttl=", "type", "untaint", "validate", "validate_for_stream", "webMaster", "webMaster=", "with_options"] Ok that does technically give me the name of all methods I can call but it contains no description of them whatsoever and sure, I can figure out that title is the title of the feed but (and this is just an example) what is skipHours ?, ok so I could call it to try and get more information but all it tells me is "nil". This cant be the best documentation available for these classes, can it? -- Posted via http://www.ruby-forum.com/.
I also found this now: http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.en Which is fantastic, but as you say this is a generic problem and while that will solve my current issue I know that there isnt a document of this standard available for most of these classes. -- Posted via http://www.ruby-forum.com/.
> I also found this now: > http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.en > > Which is fantastic, but as you say this is a generic problem and while > that will solve my current issue I know that there isnt a document of > this standard available for most of these classes.Dave, unless you''re not planning on supporting Atom feeds or RSS 1.0 feeds (very likely a mistake unless you''re only looking to parse one or two feeds which you happen to be the publisher of) the ''rss/2.0'' code isn''t likely to be a good choice. If the feeds you''re parsing happen to become invalid (happens all the time) your site may break if you''re using ''rss/2.0'' to parse. SimpleRSS or FeedTools are both better ways to go, IMHO, depending on whether you need speed or accuracy, respectively. (Disclaimer: Obviously, I wrote FeedTools, so I''m biased.) Cheers, Bob Aman -- AIM: sporkmonger Jabber: sporkmonger@jabber.org
Bob Aman wrote:> Dave, unless you''re not planning on supporting Atom feeds or RSS 1.0 > feeds (very likely a mistake unless you''re only looking to parse one > or two feeds which you happen to be the publisher of) the ''rss/2.0'' > code isn''t likely to be a good choice. If the feeds you''re parsing > happen to become invalid (happens all the time) your site may break if > you''re using ''rss/2.0'' to parse. SimpleRSS or FeedTools are both > better ways to go, IMHO, depending on whether you need speed or > accuracy, respectively.Hi Bob Since writing this post, you will be pleased to know I have switched to FeedTools :) I have even taken on board FeedUpdater and I have just finished integrating that with my existing code. I might IM you or something soon because I have a requirement of the updater which if you also like the idea, I might try and submit as a patch to you. Dave -- Posted via http://www.ruby-forum.com/.
> Hi Bob > > Since writing this post, you will be pleased to know I have switched to > FeedTools :) I have even taken on board FeedUpdater and I have just > finished integrating that with my existing code. I might IM you or > something soon because I have a requirement of the updater which if you > also like the idea, I might try and submit as a patch to you. > > DaveHehe, alright. Go for it, patches are always welcome. Cheers, Bob Aman -- AIM: sporkmonger Jabber: sporkmonger@jabber.org