Hi,
You might might be better posting this couchrest messages to the couchrest
google group, I only found this message by chance.
Firstly, your map function is not very good; sticking a doc into a the
value field of the index is a really bad idea. Secondly, you should be
using the new design blocks in Couchrest to make things easier to paginate
using the Kaminari plugin. Thirdly, CouchDB, like MongoDB, uses an id field
called '_id', you really don't want to be overwriting id properties if you
can help it.
Assuming that you have some kind of weird migration going on and you don't
want to use the normal 'type' property, here's what I'd recommend:
[code]
class Author < CouchRest::Model::Base
property :title, String
property :first_name, String
property :last_name, String
design do
view :by_author,
:map => "function(doc) {
if (doc['_id'].indexOf('authors') == 0) {
emit(doc['_id'], 1);
}
}", :reduce => "function(k,v,r) { return sum(v); }"
end
end
# Define view in controller:
@authors = Author.by_author.page(params[:page])
# Paginate it in view (requires kaminari)
paginate @authors
[/code]
(If you were using the type property, you wouldn't need to add your map
method and could just use `Author.all.page(params[:page])`, with the same
effect.)
You can find more info about this sort of stuff in the couchrest.info site,
especially the views page [1]
Good luck,
sam
[1]: http://www.couchrest.info/model/view_objects.html
On Thursday, 7 June 2012 09:56:40 UTC+2, Ruby-Forum.com User wrote:
>
> Hello,
>
> In my rails application, I am using couchrest_model to connect to a
> couchDB database.
>
> I have a model like this:
>
> [code]
> class Author < CouchRest::Model::Base
>
> property :id, Integer
> property :title, String
> property :first_name, String
> property :last_name, String
>
> # view to get only the documents which starts with "authors" - Table
> Authors
> view_by :id,
> :map => "function(doc) {
> if(doc._id.indexOf('authors') == 0) {
> emit(null, doc);
> }
> }"
>
> end
> [/code]
>
> In the controller the function is simple:
>
> [code]
>
> def list
> @authors = Author.by_id()
> end
>
> [/code]
>
>
> And in the view I iterate the @authors to show the results.
>
>
> I would like to implement pagination but I don't know how. I already
> implemented pagination before, when I was using a PostgreSQL database
> and active records (will_paginate), but now, I am stuck with this.
>
> Anyone can help me with a simple example?
>
> --
> Posted via http://www.ruby-forum.com/.
>
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