[Rails] Re: RSS Feed parsing problem

2009-04-15 Thread David Knorr



On 12 Apr., 22:02, Nick Hoyle 
wrote:
> Nick Hoyle wrote:
> > hi thanks for the reply, was much needed.
>
> > I knew what i was trying to do which was like you say call each of the
> > items in the array i just wasnt sure how to do it, and attempted a
> > similar type of loop but had no luck.
>
> > I will look into this and see if i can achieve what i want
>
> > Thanks alot
>
> > nick
>
> just another quick question
>
> how would i able to output each parsed feed from the array @feeds[] in a
> view?

You would do something like this:


  <%- @feeds.each do |feed| -%>
<%= feed.channel.title %>
  <%- end -%>


Voila, a list of feed titles. :)

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David Knorr
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[Rails] Re: RSS Feed parsing problem

2009-04-12 Thread Nick Hoyle

Nick Hoyle wrote:
> hi thanks for the reply, was much needed.
> 
> I knew what i was trying to do which was like you say call each of the 
> items in the array i just wasnt sure how to do it, and attempted a 
> similar type of loop but had no luck.
> 
> I will look into this and see if i can achieve what i want
> 
> Thanks alot
> 
> nick

just another quick question

how would i able to output each parsed feed from the array @feeds[] in a 
view?
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[Rails] Re: RSS Feed parsing problem

2009-04-12 Thread Nick Hoyle

hi thanks for the reply, was much needed.

I knew what i was trying to do which was like you say call each of the 
items in the array i just wasnt sure how to do it, and attempted a 
similar type of loop but had no luck.

I will look into this and see if i can achieve what i want

Thanks alot

nick
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[Rails] Re: RSS Feed parsing problem

2009-04-12 Thread David Knorr



On 12 Apr., 18:59, Nick Hoyle 
wrote:
> I want to parse multiple feeds but i have ran into problems
>
> Im doing a query on a table which returns rss feed urls stored in an
> instance variable called @urls .
>
> with each of these eed urls i want to parse them like below
>
> @feeds = SimpleRSS.parse open(@urls.feed_url)
>
> however this only works when doing a query for first or last and not
> find:all. eg: just 1 feed url
>
> undefined method `feed_url' for #
>
> any suggestions on what the problem is? ive tried the approach of trying
> to put this into a loop but had no luck and are struggling to find a
> solution

To me the problem is pretty obvious. You are trying to call an
undefined method 'feed_url' on an Array. To make this work you should
call the method on each of the items in the Array individually. Like
this:

@feeds = []
@urls.each do |url|
  @feeds << SimpleRSS.parse open(url.feed_url)
end

You need to know, that whenever you're asking ActiveRecord for
multiple records in the database, they will always come back as an
Array with each item representing a record or model. But when you're
asking for just a single record (Model.find(:first) or Model.find
(:last)) you simply get the record/model back.

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David Knorr
http://twitter.com/rubyguy
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