jro_apps/redmine Files · app/helpers/sort_helper.rb

Speeds up very slow tests....

Speeds up very slow tests. git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3197 e93f8b46-1217-0410-a6f0-8f06a7374b81

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             sort_helper.rb
        
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        Jean-Philippe Lang
    
Initial commit...

              r2
            
      # Helpers to sort tables using clickable column headers.

      #

      # Author:  Stuart Rackham <srackham@methods.co.nz>, March 2005.

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
      #          Jean-Philippe Lang, 2009

        Jean-Philippe Lang
    
Initial commit...

              r2
            
      # License: This source code is released under the MIT license.

      #

      # - Consecutive clicks toggle the column's sort order.

      # - Sort state is maintained by a session hash entry.

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
      # - CSS classes identify sort column and state.

        Jean-Philippe Lang
    
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              r2
            
      # - Typically used in conjunction with the Pagination module.

      #

      # Example code snippets:

      #

      # Controller:

      #

      #   helper :sort

      #   include SortHelper

      # 

      #   def list

      #     sort_init 'last_name'

        Jean-Philippe Lang
    
Fixes SortHelper examples (#2950)....

              r2508
            
      #     sort_update %w(first_name last_name)

        Jean-Philippe Lang
    
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      #     @items = Contact.find_all nil, sort_clause

      #   end

      # 

      # Controller (using Pagination module):

      #

      #   helper :sort

      #   include SortHelper

      # 

      #   def list

      #     sort_init 'last_name'

        Jean-Philippe Lang
    
Fixes SortHelper examples (#2950)....

              r2508
            
      #     sort_update %w(first_name last_name)

        Jean-Philippe Lang
    
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              r2
            
      #     @contact_pages, @items = paginate :contacts,

      #       :order_by => sort_clause,

      #       :per_page => 10

      #   end

      # 

      # View (table header in list.rhtml):

      # 

      #   <thead>

      #     <tr>

      #       <%= sort_header_tag('id', :title => 'Sort by contact ID') %>

      #       <%= sort_header_tag('last_name', :caption => 'Name') %>

      #       <%= sort_header_tag('phone') %>

      #       <%= sort_header_tag('address', :width => 200) %>

      #     </tr>

      #   </thead>

      #

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
      # - Introduces instance variables: @sort_default, @sort_criteria

      # - Introduces param :sort

        Jean-Philippe Lang
    
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              r2
            
      #

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
        Jean-Philippe Lang
    
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      module SortHelper

        Jean-Philippe Lang
    
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        class SortCriteria

          def initialize

            @criteria = []

          end

          def available_criteria=(criteria)

            unless criteria.is_a?(Hash)

              criteria = criteria.inject({}) {|h,k| h[k] = k; h}

            end

            @available_criteria = criteria

          end

          def from_param(param)

            @criteria = param.to_s.split(',').collect {|s| s.split(':')[0..1]}

            normalize!

          end

        Jean-Philippe Lang
    
Ability to save "sort order" in custom queries (#2899)....

              r2504
            
          def criteria=(arg)

            @criteria = arg

            normalize!

          end

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
          def to_param

            @criteria.collect {|k,o| k + (o ? '' : ':desc')}.join(',')

          end

          def to_sql

            sql = @criteria.collect do |k,o|

              if s = @available_criteria[k]

                (o ? s.to_a : s.to_a.collect {|c| "#{c} DESC"}).join(', ')

              end

            end.compact.join(', ')

            sql.blank? ? nil : sql

          end

          def add!(key, asc)

            @criteria.delete_if {|k,o| k == key}

            @criteria = [[key, asc]] + @criteria

            normalize!

          end

          def add(*args)

            r = self.class.new.from_param(to_param)

            r.add!(*args)

            r

          end

          def first_key

            @criteria.first && @criteria.first.first

          end

          def first_asc?

            @criteria.first && @criteria.first.last

          end

        Jean-Philippe Lang
    
Ability to save "sort order" in custom queries (#2899)....

              r2504
            
          def empty?

            @criteria.empty?

          end

        Jean-Philippe Lang
    
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              r2503
            
          private

          def normalize!

        Jean-Philippe Lang
    
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            @criteria ||= []

            @criteria = @criteria.collect {|s| s = s.to_a; [s.first, (s.last == false || s.last == 'desc') ? false : true]}

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
            @criteria = @criteria.select {|k,o| @available_criteria.has_key?(k)} if @available_criteria

            @criteria.slice!(3)

            self

          end

        end

        Jean-Philippe Lang
    
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              r2504
            
        def sort_name

          controller_name + '_' + action_name + '_sort'

        end

        Jean-Philippe Lang
    
Initial commit...

              r2
            
        Jean-Philippe Lang
    
Ability to save "sort order" in custom queries (#2899)....

              r2504
            
        # Initializes the default sort.

        # Examples:

        #   

        #   sort_init 'name'

        #   sort_init 'id', 'desc'

        #   sort_init ['name', ['id', 'desc']]

        #   sort_init [['name', 'desc'], ['id', 'desc']]

        Jean-Philippe Lang
    
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              r2
            
        #

        Jean-Philippe Lang
    
Ability to save "sort order" in custom queries (#2899)....

              r2504
            
        def sort_init(*args)

          case args.size

          when 1

            @sort_default = args.first.is_a?(Array) ? args.first : [[args.first]]

          when 2

            @sort_default = [[args.first, args.last]]

          else

            raise ArgumentError

          end

        Jean-Philippe Lang
    
Initial commit...

              r2
            
        end

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

        # sort_clause.

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
        # - criteria can be either an array or a hash of allowed keys

        #

        def sort_update(criteria)

          @sort_criteria = SortCriteria.new

          @sort_criteria.available_criteria = criteria

        Jean-Philippe Lang
    
Ability to save "sort order" in custom queries (#2899)....

              r2504
            
          @sort_criteria.from_param(params[:sort] || session[sort_name])

          @sort_criteria.criteria = @sort_default if @sort_criteria.empty?

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
          session[sort_name] = @sort_criteria.to_param

        Jean-Philippe Lang
    
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        end

        Jean-Philippe Lang
    
Ability to save "sort order" in custom queries (#2899)....

              r2504
            
        # Clears the sort criteria session data

        #

        def sort_clear

          session[sort_name] = nil

        end

        Jean-Philippe Lang
    
Initial commit...

              r2
            
        # Returns an SQL sort clause corresponding to the current sort state.

        # Use this to sort the controller's table items collection.

        #

        def sort_clause()

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
          @sort_criteria.to_sql

        Jean-Philippe Lang
    
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              r2
            
        end

        # Returns a link which sorts by the named column.

        #

        # - column is the name of an attribute in the sorted record collection.

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
        # - the optional caption explicitly specifies the displayed link text.

        # - 2 CSS classes reflect the state of the link: sort and asc or desc

        Jean-Philippe Lang
    
Initial commit...

              r2
            
        #

        Jean-Philippe Lang
    
More appropriate default sort order on sortable columns....

              r1107
            
        def sort_link(column, caption, default_order)

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
          css, order = nil, default_order

          if column.to_s == @sort_criteria.first_key

            if @sort_criteria.first_asc?

              css = 'sort asc'

        Jean-Philippe Lang
    
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              r2
            
              order = 'desc'

            else

        Jean-Philippe Lang
    
SortHelper refactoring:...

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              css = 'sort desc'

        Jean-Philippe Lang
    
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              order = 'asc'

            end

          end

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
          caption = column.to_s.humanize unless caption

        Jean-Philippe Lang
    
Quick fix for:...

              r403
            
        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
          sort_options = { :sort => @sort_criteria.add(column.to_s, order).to_param }

        Jean-Philippe Lang
    
Adds date range filter and pagination on time entries detail view (closes #434)....

              r1159
            
          # don't reuse params if filters are present

          url_options = params.has_key?(:set_filter) ? sort_options : params.merge(sort_options)

        Jean-Philippe Lang
    
Quick fix for:...

              r403
            
        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
           # Add project_id to url_options

        Eric Davis
    
Fixes Issue sorting in a project, broken by #2317...

              r2322
            
          url_options = url_options.merge(:project_id => params[:project_id]) if params.has_key?(:project_id)

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
        Jean-Philippe Lang
    
ajaxified paginators...

              r31
            
          link_to_remote(caption,

        Eric Davis
    
Converted routing and urls to follow the Rails REST convention....

              r2315
            
                        {:update => "content", :url => url_options, :method => :get},

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
                        {:href => url_for(url_options),

                         :class => css})

        Jean-Philippe Lang
    
Initial commit...

              r2
            
        end

        # Returns a table header <th> tag with a sort link for the named column

        # attribute.

        #

        # Options:

        #   :caption     The displayed link name (defaults to titleized column name).

        #   :title       The tag's 'title' attribute (defaults to 'Sort by :caption').

        #

        # Other options hash entries generate additional table header tag attributes.

        #

        # Example:

        #

        #   <%= sort_header_tag('id', :title => 'Sort by contact ID', :width => 40) %>

        #

        def sort_header_tag(column, options = {})

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
          caption = options.delete(:caption) || column.to_s.humanize

        Jean-Philippe Lang
    
More appropriate default sort order on sortable columns....

              r1107
            
          default_order = options.delete(:default_order) || 'asc'

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503
            
          options[:title] = l(:label_sort_by, "\"#{caption}\"") unless options[:title]

        Jean-Philippe Lang
    
More appropriate default sort order on sortable columns....

              r1107
            
          content_tag('th', sort_link(column, caption, default_order), options)

        Jean-Philippe Lang
    
Initial commit...

              r2
            
        end

      end

        Jean-Philippe Lang
    
SortHelper refactoring:...

              r2503

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Jean-Philippe Lang Initial commit...	r2	# Helpers to sort tables using clickable column headers.
		#
		# Author: Stuart Rackham <srackham@methods.co.nz>, March 2005.
Jean-Philippe Lang SortHelper refactoring:...	r2503	# Jean-Philippe Lang, 2009
Jean-Philippe Lang Initial commit...	r2	# License: This source code is released under the MIT license.
		#
		# - Consecutive clicks toggle the column's sort order.
		# - Sort state is maintained by a session hash entry.
Jean-Philippe Lang SortHelper refactoring:...	r2503	# - CSS classes identify sort column and state.
Jean-Philippe Lang Initial commit...	r2	# - Typically used in conjunction with the Pagination module.
		#
		# Example code snippets:
		#
		# Controller:
		#
		# helper :sort
		# include SortHelper
		#
		# def list
		# sort_init 'last_name'
Jean-Philippe Lang Fixes SortHelper examples (#2950)....	r2508	# sort_update %w(first_name last_name)
Jean-Philippe Lang Initial commit...	r2	# @items = Contact.find_all nil, sort_clause
		# end
		#
		# Controller (using Pagination module):
		#
		# helper :sort
		# include SortHelper
		#
		# def list
		# sort_init 'last_name'
Jean-Philippe Lang Fixes SortHelper examples (#2950)....	r2508	# sort_update %w(first_name last_name)
Jean-Philippe Lang Initial commit...	r2	# @contact_pages, @items = paginate :contacts,
		# :order_by => sort_clause,
		# :per_page => 10
		# end
		#
		# View (table header in list.rhtml):
		#
		# <thead>
		# <tr>
		# <%= sort_header_tag('id', :title => 'Sort by contact ID') %>
		# <%= sort_header_tag('last_name', :caption => 'Name') %>
		# <%= sort_header_tag('phone') %>
		# <%= sort_header_tag('address', :width => 200) %>
		# </tr>
		# </thead>
		#
Jean-Philippe Lang SortHelper refactoring:...	r2503	# - Introduces instance variables: @sort_default, @sort_criteria
		# - Introduces param :sort
Jean-Philippe Lang Initial commit...	r2	#
Jean-Philippe Lang SortHelper refactoring:...	r2503
Jean-Philippe Lang Initial commit...	r2	module SortHelper
Jean-Philippe Lang SortHelper refactoring:...	r2503	class SortCriteria

		def initialize
		@criteria = []
		end

		def available_criteria=(criteria)
		unless criteria.is_a?(Hash)
		criteria = criteria.inject({}) {\|h,k\| h[k] = k; h}
		end
		@available_criteria = criteria
		end

		def from_param(param)
		@criteria = param.to_s.split(',').collect {\|s\| s.split(':')[0..1]}
		normalize!
		end

Jean-Philippe Lang Ability to save "sort order" in custom queries (#2899)....	r2504	def criteria=(arg)
		@criteria = arg
		normalize!
		end

Jean-Philippe Lang SortHelper refactoring:...	r2503	def to_param
		@criteria.collect {\|k,o\| k + (o ? '' : ':desc')}.join(',')
		end

		def to_sql
		sql = @criteria.collect do \|k,o\|
		if s = @available_criteria[k]
		(o ? s.to_a : s.to_a.collect {\|c\| "#{c} DESC"}).join(', ')
		end
		end.compact.join(', ')
		sql.blank? ? nil : sql
		end

		def add!(key, asc)
		@criteria.delete_if {\|k,o\| k == key}
		@criteria = [[key, asc]] + @criteria
		normalize!
		end

		def add(*args)
		r = self.class.new.from_param(to_param)
		r.add!(*args)
		r
		end

		def first_key
		@criteria.first && @criteria.first.first
		end

		def first_asc?
		@criteria.first && @criteria.first.last
		end

Jean-Philippe Lang Ability to save "sort order" in custom queries (#2899)....	r2504	def empty?
		@criteria.empty?
		end

Jean-Philippe Lang SortHelper refactoring:...	r2503	private

		def normalize!
Jean-Philippe Lang Ability to save "sort order" in custom queries (#2899)....	r2504	@criteria \|\|= []
		@criteria = @criteria.collect {\|s\| s = s.to_a; [s.first, (s.last == false \|\| s.last == 'desc') ? false : true]}
Jean-Philippe Lang SortHelper refactoring:...	r2503	@criteria = @criteria.select {\|k,o\| @available_criteria.has_key?(k)} if @available_criteria
		@criteria.slice!(3)
		self
		end
		end
Jean-Philippe Lang Ability to save "sort order" in custom queries (#2899)....	r2504
		def sort_name
		controller_name + '_' + action_name + '_sort'
		end
Jean-Philippe Lang Initial commit...	r2
Jean-Philippe Lang Ability to save "sort order" in custom queries (#2899)....	r2504	# Initializes the default sort.
		# Examples:
		#
		# sort_init 'name'
		# sort_init 'id', 'desc'
		# sort_init ['name', ['id', 'desc']]
		# sort_init [['name', 'desc'], ['id', 'desc']]
Jean-Philippe Lang Initial commit...	r2	#
Jean-Philippe Lang Ability to save "sort order" in custom queries (#2899)....	r2504	def sort_init(*args)
		case args.size
		when 1
		@sort_default = args.first.is_a?(Array) ? args.first : [[args.first]]
		when 2
		@sort_default = [[args.first, args.last]]
		else
		raise ArgumentError
		end
Jean-Philippe Lang Initial commit...	r2	end

		# Updates the sort state. Call this in the controller prior to calling
		# sort_clause.
Jean-Philippe Lang SortHelper refactoring:...	r2503	# - criteria can be either an array or a hash of allowed keys
		#
		def sort_update(criteria)
		@sort_criteria = SortCriteria.new
		@sort_criteria.available_criteria = criteria
Jean-Philippe Lang Ability to save "sort order" in custom queries (#2899)....	r2504	@sort_criteria.from_param(params[:sort] \|\| session[sort_name])
		@sort_criteria.criteria = @sort_default if @sort_criteria.empty?
Jean-Philippe Lang SortHelper refactoring:...	r2503	session[sort_name] = @sort_criteria.to_param
Jean-Philippe Lang Initial commit...	r2	end
Jean-Philippe Lang Ability to save "sort order" in custom queries (#2899)....	r2504
		# Clears the sort criteria session data
		#
		def sort_clear
		session[sort_name] = nil
		end
Jean-Philippe Lang Initial commit...	r2
		# Returns an SQL sort clause corresponding to the current sort state.
		# Use this to sort the controller's table items collection.
		#
		def sort_clause()
Jean-Philippe Lang SortHelper refactoring:...	r2503	@sort_criteria.to_sql
Jean-Philippe Lang Initial commit...	r2	end

		# Returns a link which sorts by the named column.
		#
		# - column is the name of an attribute in the sorted record collection.
Jean-Philippe Lang SortHelper refactoring:...	r2503	# - the optional caption explicitly specifies the displayed link text.
		# - 2 CSS classes reflect the state of the link: sort and asc or desc
Jean-Philippe Lang Initial commit...	r2	#
Jean-Philippe Lang More appropriate default sort order on sortable columns....	r1107	def sort_link(column, caption, default_order)
Jean-Philippe Lang SortHelper refactoring:...	r2503	css, order = nil, default_order

		if column.to_s == @sort_criteria.first_key
		if @sort_criteria.first_asc?
		css = 'sort asc'
Jean-Philippe Lang Initial commit...	r2	order = 'desc'
		else
Jean-Philippe Lang SortHelper refactoring:...	r2503	css = 'sort desc'
Jean-Philippe Lang Initial commit...	r2	order = 'asc'
		end
		end
Jean-Philippe Lang SortHelper refactoring:...	r2503	caption = column.to_s.humanize unless caption
Jean-Philippe Lang Quick fix for:...	r403
Jean-Philippe Lang SortHelper refactoring:...	r2503	sort_options = { :sort => @sort_criteria.add(column.to_s, order).to_param }
Jean-Philippe Lang Adds date range filter and pagination on time entries detail view (closes #434)....	r1159	# don't reuse params if filters are present
		url_options = params.has_key?(:set_filter) ? sort_options : params.merge(sort_options)
Jean-Philippe Lang Quick fix for:...	r403
Jean-Philippe Lang SortHelper refactoring:...	r2503	# Add project_id to url_options
Eric Davis Fixes Issue sorting in a project, broken by #2317...	r2322	url_options = url_options.merge(:project_id => params[:project_id]) if params.has_key?(:project_id)
Jean-Philippe Lang SortHelper refactoring:...	r2503
Jean-Philippe Lang ajaxified paginators...	r31	link_to_remote(caption,
Eric Davis Converted routing and urls to follow the Rails REST convention....	r2315	{:update => "content", :url => url_options, :method => :get},
Jean-Philippe Lang SortHelper refactoring:...	r2503	{:href => url_for(url_options),
		:class => css})
Jean-Philippe Lang Initial commit...	r2	end

		# Returns a table header <th> tag with a sort link for the named column
		# attribute.
		#
		# Options:
		# :caption The displayed link name (defaults to titleized column name).
		# :title The tag's 'title' attribute (defaults to 'Sort by :caption').
		#
		# Other options hash entries generate additional table header tag attributes.
		#
		# Example:
		#
		# <%= sort_header_tag('id', :title => 'Sort by contact ID', :width => 40) %>
		#
		def sort_header_tag(column, options = {})
Jean-Philippe Lang SortHelper refactoring:...	r2503	caption = options.delete(:caption) \|\| column.to_s.humanize
Jean-Philippe Lang More appropriate default sort order on sortable columns....	r1107	default_order = options.delete(:default_order) \|\| 'asc'
Jean-Philippe Lang SortHelper refactoring:...	r2503	options[:title] = l(:label_sort_by, "\"#{caption}\"") unless options[:title]
Jean-Philippe Lang More appropriate default sort order on sortable columns....	r1107	content_tag('th', sort_link(column, caption, default_order), options)
Jean-Philippe Lang Initial commit...	r2	end
		end
Jean-Philippe Lang SortHelper refactoring:...	r2503