Can't Convert Symbol into Integer

I must have really screwed something up big time. I was trying to
modify SortHelper to work on multiple columns and now I can’t get
anything to work even though I reverted all my changes.

I keep getting the error:
can’t convert Symbol into Integer
C:/Users/Eric
Powell/Documents/ruby/my1fnc/app/helpers/sort_helper.rb:108:in []' C:/Users/Eric Powell/Documents/ruby/my1fnc/app/helpers/sort_helper.rb:108:insort_clause’
C:/Users/Eric
Powell/Documents/ruby/my1fnc/app/controllers/posts_controller.rb:29:in
`index’

The offending line in sort_helper.rb is:
result = session[@sort_name][:key] + ’ ’ +
session[@sort_name][:order]

Here’s my entire SortHelper module:

module SortHelper

require ‘active_support/inflector’

Initializes the default sort column (default_key) with the following

options:

- :default_order – the default sort order ‘asc’ or ‘desc’. Defaults

to

‘asc’.

- :name – the name of the session hash entry that stores the sort

state.

Defaults to ‘<controller_name>_sort’.

- :icons_dir – directory with sort direction icons. Defaults to

/images

def sort_init(default_key, options={})
options = { :default_order => ‘asc’,
:name => params[:controller] + ‘_sort’,
:icons_dir => ‘/images’,
}.merge(options)
@sort_name = options[:name]
@sort_default = {:key => default_key, :order =>
options[:default_order]}
@icons_dir = options[:icons_dir]
end

Updates the sort state. Call this in the controller prior to calling

sort_clause.

def sort_update()
if params[:sort_key]
sort = {:key => params[:sort_key], :order => params[:sort_order]}
elsif session[@sort_name]
sort = session[@sort_name] # Previous sort.
else
sort = @sort_default
end
session[@sort_name] = sort
end

Returns an SQL sort clause corresponding to the current sort state.

Use this to sort the controller’s table items collection.

def sort_clause()
result = session[@sort_name][:key] + ’ ’ +
session[@sort_name][:order]
result if result =~ /^[\w_]+ (asc|desc)$/i # Validate sort.
end

Returns a link which sorts by the named column.

- column is the name of an attribute in the sorted record

collection.

- The optional text explicitly specifies the displayed link text.

- A sort icon image is positioned to the right of the sort link.

def sort_link(column, text=nil, options=nil)
key, order = session[@sort_name][:key], session[@sort_name][:order]
if key == column
if order.downcase == ‘asc’
icon, order = ‘sort_asc.png’, ‘desc’
else
icon, order = ‘sort_desc.png’, ‘asc’
end
else
icon, order = nil, ‘asc’
end
text = ActiveSupport::Inflector::titleize(column) unless text
params = {:params => {:sort_key => column, :sort_order => order } }
params = params.merge(options[:params]) if options[:params]
link_to(text, params) +
(icon ? nbsp(2) + image_tag(File.join(@icons_dir,icon)) : ‘’)
end

def sort_header_tag(column, options = {})
text = options.delete(:text) ||
ActiveSupport::Inflector::titleize(column.humanize)
options[:title]= “Sort by #{text}” unless options[:title]
text = options[:title] || options.delete(:text) ||
ActiveSupport::Inflector::titleize(column.humanize)
content_tag(‘th’, sort_link(column, text, options), options)
end

private

# Return n non-breaking spaces.
def nbsp(n)
  '&nbsp;' * n
end

end

and here’s the relevent code from my controller:
def index

sort_init ‘name’
sort_update

if not params[:q].blank?
options = { :conditions => params[:q] }
end

options = { :order => sort_clause }

@clause = options[:order]
#@posts = Post.all

@posts = Post.find(:all, :order => sort_clause)

@posts = Post.find(:all, options)

respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => @posts }
end
end

On Apr 10, 3:25 pm, Eric P. [email protected] wrote:

I must have really screwed something up big time. I was trying to
modify SortHelper to work on multiple columns and now I can’t get
anything to work even though I reverted all my changes.

Looks like at some point you stored something in session[@sort_name]
that was an array - although you may have reverted the code that
caused that to happen your old session is still there.

Fred

Frederick C. wrote:

On Apr 10, 3:25�pm, Eric P. [email protected] wrote:

I must have really screwed something up big time. �I was trying to
modify SortHelper to work on multiple columns and now I can’t get
anything to work even though I reverted all my changes.

Looks like at some point you stored something in session[@sort_name]
that was an array - although you may have reverted the code that
caused that to happen your old session is still there.

Fred

Thanks, Fred. You were spot on. I just added session[@sort_name] = nil
to sort_init, ran the code, then commented it out and I was all set.

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