Module: Searchlogic::RailsHelpers

Defined in:
lib/searchlogic/rails_helpers.rb

Instance Method Summary collapse

Instance Method Details

#fields_for(*args, &block) ⇒ Object

Automatically adds an “order” hidden field in your form to preserve how the data is being ordered.



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# File 'lib/searchlogic/rails_helpers.rb', line 66

def fields_for(*args, &block)
  if search_obj = args.find { |arg| arg.is_a?(Searchlogic::Search) }
    args.unshift(:search) if args.first == search_obj
    concat(content_tag("div", hidden_field_tag("#{args.first}[order]", search_obj.order)))
    super
  else
    super
  end
end

#form_for(*args, &block) ⇒ Object

Automatically makes the form method :get if a Searchlogic::Search and sets the params scope to :search



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# File 'lib/searchlogic/rails_helpers.rb', line 52

def form_for(*args, &block)
  if search_obj = args.find { |arg| arg.is_a?(Searchlogic::Search) }
    options = args.extract_options!
    options[:html] ||= {}
    options[:html][:method] ||= :get
    options[:url] ||= url_for
    args.unshift(:search) if args.first == search_obj
    args << options
  end
  super
end

#order(search, options = {}, html_options = {}) ⇒ Object

Creates a link that alternates between acending and descending. It basically alternates between calling 2 named scopes: “ascend_by_*” and “descend_by_*”

By default Searchlogic gives you these named scopes for all of your columns, but if you wanted to create your own, it will work with those too.

Examples:

order @search, :by => :username
order @search, :by => :created_at, :as => "Created"

This helper accepts the following options:

  • :by - the name of the named scope. This helper will prepend this value with “ascend_by_” and “descend_by_”

  • :as - the text used in the link, defaults to whatever is passed to :by

  • :ascend_scope - what scope to call for ascending the data, defaults to “ascend_by_:by”

  • :descend_scope - what scope to call for descending the data, defaults to “descend_by_:by”

  • :params - hash with additional params which will be added to generated url

  • :params_scope - the name of the params key to scope the order condition by, defaults to :search



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# File 'lib/searchlogic/rails_helpers.rb', line 22

def order(search, options = {}, html_options = {})
  options[:params_scope] ||= :search
  if !options[:as]
    id = options[:by].to_s.downcase == "id"
    options[:as] = id ? options[:by].to_s.upcase : options[:by].to_s.humanize
  end
  options[:ascend_scope] ||= "ascend_by_#{options[:by]}"
  options[:descend_scope] ||= "descend_by_#{options[:by]}"
  ascending = search.order.to_s == options[:ascend_scope]
  new_scope = ascending ? options[:descend_scope] : options[:ascend_scope]
  selected = [options[:ascend_scope], options[:descend_scope]].include?(search.order.to_s)
  if selected
    css_classes = html_options[:class] ? html_options[:class].split(" ") : []
    if ascending
      options[:as] = "&#9650;&nbsp;#{options[:as]}"
      css_classes << "ascending"
    else
      options[:as] = "&#9660;&nbsp;#{options[:as]}"
      css_classes << "descending"
    end
    html_options[:class] = css_classes.join(" ")
  end
  url_options = {
    options[:params_scope] => search.conditions.merge( { :order => new_scope } )
  }.deep_merge(options[:params] || {})
  link_to options[:as], url_for(url_options), html_options
end