gmane.comp.lang.ruby.rails.engines.devel

Re: RoR with Reia

Nat Budin — 2011-05-25T21:16:31

Highly doubtful.

Nat
On Wednesday, May 25, 2011 at 5:15 PM, flash wrote: 
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RoR with Reia

flash — 2011-05-25T21:15:22

Hello,
would be possible to run RoR with Reia (
http://en.wikipedia.org/wiki/Reia_(programming_language) )?

Engines as Gems

Ray Boutotte — 2010-03-29T21:38:49

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Re: The state of Rails 2.3 / Engines migrations

Nat Budin — 2010-02-09T21:47:16

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The state of Rails 2.3 / Engines migrations

seth b — 2010-02-09T21:43:01

Hey everyone,

I've been out of the loop for a minute regarding engines, but I'm
looking to update Substruct to Engines 2.3/Rails 2.3 if possible.

My last investigation stopped when running into the migrations issue.
I'm wondering if there is a recommended way to handle engine
migrations / legacy migrations (001_my_migration.rb) with 2.3. The
official site mentions some "things being in the works" but I didn't
really see anything past that.

Any advice or a link to a blog post would be cool. Thanks much.

--------------------
http://subimage.com
http://twitter.com/subimage

ApplicationHelper in engine?

Jonathan Rochkind — 2009-09-14T16:22:22

So if I understand things right, my Engine plug-in can have a helper in 
it. And my app can provide a helper by the same name, and the two 
helpers will be merged together, any conflicting method names my app's 
helper with the same name will take precedence.

Is there a reason this wouldn't work for an ApplicationHelper in 
application_helper.rb ?

My engine provides an ApplicationHelper. That works fine as long as the 
app using it has no ApplicationHelper. But if the containing app does 
have an ApplicationHelper, they are NOT merged together, but instead 
only the containing app's ApplicationHelper is used, everything in the 
Engine's ApplicationHelper is lost and unavailable.

Can anyone shed some light on this?

Jonathan

Re: using a generator to handle migrations

James Adam — 2009-09-07T21:12:36

2009/9/7 Cynthia Kiser <cnk-7GExONQZ6ZKVc3sceRu5cw< at >public.gmane.org>:

This is basically correct - you want to use the 'migration_template'
method available in the generator mechanism to copy a migration file
into db/migrate, and Clearance is a reasonable example where this
happens.

The reason we do this is to place the migration in the appropriate
part of the application timeline; this is one of the issues I covered
in my presentation. You can see my blog for more discussion of this
(http://interblah.net/plugin-migrations), but the gist is that I
believe it is important to preserve the order migrations were applied.

The other part of the migration issue is tracking which migrations
have already run; there's no reason why you couldn't run the migration
generators from Clearance multiple times, for example. This isn't a
big deal normally, but comes into play if you're trying to 'upgrade'
an engine in-place, and incorporate a new migration.


There's no video (probably for the best, to be honest), but I'm happy
to answer questions here, if you've got them.

- James
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Re: using a generator to handle migrations

Henry Poydar — 2009-09-07T21:10:05

I've got a small plugin that might help you:
http://github.com/hpoydar/engines-helper

On Mon, Sep 7, 2009 at 5:06 PM, Miles Georgi<azimux-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> wrote:
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Re: using a generator to handle migrations

Miles Georgi — 2009-09-07T21:06:00

Not sure if it's useful information or not, but in the repository I
use for engines, I've made it simply use the current Rails migration
mechanism, ie, no generator is required, the migrations in plugins are
automatically ran.

My repository is way out of date though... I should really do a pull
to see if it works just fine with the recent changes.

Miles

On Mon, Sep 7, 2009 at 2:03 PM, Cynthia Kiser <cnk-7GExONQZ6ZKVc3sceRu5cw< at >public.gmane.org> wrote:
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Re: using a generator to handle migrations

Cynthia Kiser — 2009-09-07T21:03:23

Quoting Andrew Roth <andrewroth-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org>:

I am not James - but I recently needed something like that. I used the
Clearance engine as a model for buillding the migrations I wanted. 

http://github.com/thoughtbot/clearance/tree/master

James, is there video anywhere of your talk? I got a lot out of the
slides but there are a couple where I would like more detail as was
probably provided at the talk.

using a generator to handle migrations

Andrew Roth — 2009-09-07T14:04:45

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relative_url_root in Engines::RailsExtensions::AssetHelpers.plugin_asset_path

John Koleszar — 2009-08-11T15:09:03

Hi,

I have a rails app (redmine) running within a sub-uri via the following
directive in environment.rb:

ActionController::AbstractRequest.relative_url_root = "/redmine" 

Unfortunately, URLs generated for plugin assets by Engines do not honor
this directive. I don't know Rails, but it seems like an easy fix if you
know how to get at the request object from within Engines. I was
thinking of something along these lines:

===================================================================
--- vendor/plugins/engines/lib/engines/rails_extensions/asset_helpers.rb
(revision 2796)
+++ vendor/plugins/engines/lib/engines/rails_extensions/asset_helpers.rb
(working copy)
< at >< at > -109,5 +109,5 < at >< at >
   # Returns the publicly-addressable relative URI for the given asset,
type and plugin
   def self.plugin_asset_path(plugin_name, type, asset)
     raise "No plugin called '#{plugin_name}' - please use the full name
of a loaded plugin." if Engines.plugins[plugin_name].nil?
-
"/#{Engines.plugins[plugin_name].public_asset_directory}/#{type}/#{asset}"
+
"#{< at >controller.request.relative_url_root}/#{Engines.plugins[plugin_name].public_asset_directory}/#{type}/#{asset}"
   end

Can someone point me in the right direction?

Thanks,

John