SoundSoftware Code Site

# This file is a part of redmine_tags

# redMine plugin, that adds tagging support.

#

# Copyright (c) 2010 Aleksey V Zapparov AKA ixti

#

# redmine_tags is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# redmine_tags is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with redmine_tags.  If not, see <http://www.gnu.org/licenses/>.

module FiltersHelper

  # returns link to the page with issues filtered by specified filters

  # === parameters

  # * <i>title</i> = link title text

  # * <i>filters</i> = filters to be applied (see <tt>link_to_filter_options</tt> for details)

  # * <i>options</i> = (optional) base options of the link

  # === example

  # link_to_filter 'foobar', [[ :tags, '~', 'foobar' ]]

  # link_to_filter 'foobar', [[ :tags, '~', 'foobar' ]], :project_id => project

  def link_to_filter(title, filters, options = {})

    options.merge! link_to_filter_options(filters)

    link_to title, options

  end

  # returns hash suitable for passing it to the <tt>to_link</tt>

  # === parameters

  # * <i>filters</i> = array of arrays. each child array is an array of strings:

  #                    name, operator and value

  # === example

  # link_to 'foobar', link_to_filter_options [[ :tags, '~', 'foobar' ]]

  #

  # filters = [[ :tags, '~', 'bazbaz' ], [:status_id, 'o']]

  # link_to 'bazbaz', link_to_filter_options filters

  def link_to_filter_options(filters)

    options = {

      :controller => 'issues',

      :action => 'index',

      :set_filter => 1,

      :fields => [],

      :values => {},

      :operators => {}

    }

    filters.each do |f|

      name, operator, value = f

      options[:fields].push(name)

      options[:operators][name] = operator

      options[:values][name] = [value]

    end

    options

  end

end