How to sort results of group_by

@areas.group_by(&:responsibility).each do |responsibility, areas|

<%=h responsibility.name %>

<% areas.each do |area| %> ...

I see that #group_by iterates through my list of areas, splitting them
into
sets according to which ones have the same responsibility.

I would like to sort the results of that list.

It seems to me that group_by returns an OrderedHash. How to I sort
those
results prior to passing the |responsibility, areas| pairs?

–wpd

The ordered hash is already sorted by responsibility, so you would
sort each area something like this: (tags removed)

@areas.group_by(&:responsibility).each do |responsibility, areas|
responsibility.name
areas.sort_by{|area| area.name}.each do |area|

A style suggestion: make yourself a method in class Area that returns
@areas_grouped_and_sorted. Less code in the view, and reusable.

The problem is that the responsibilities are not already sorted going
in.
Each area belongs_to a responsibility. I have the list of all of the
areas,
I want to group them by responsibility, and I want to sort the result by
some field within the responsibility. Currently, I have something like:

@areas = Area.find(:all)

Is there some way to order that ahead of time by
areas.responsibility.some_field?

Hmmm… perhaps I’m thinking of this backwards. (It wouldn’t be the
first
time.) Do I really want to do something like:

@responsibilities = Responsibility.find(:all)

Hmmmm… that looks like the right avenue to have taken in the first
place…

now… if I could just figure out how to comment out blocks of ERB code,
this would be much easier to test and then back out of if it goes awry.

–wpd

On Dec 5, 2008, at 7:40 PM, Patrick D. wrote:

now… if I could just figure out how to comment out blocks of ERB
code, this would be much easier to test and then back out of if it
goes awry.

<% if false -%>
commented out
<% end -%>

Works for me when I don’t have time to think up anything else…

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