foodsoft/app/helpers/application_helper.rb

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# Methods added to this helper will be available to all templates in the application.
module ApplicationHelper
def format_time(time = Time.now)
I18n.l(time, :format => "%d.%m.%Y %H:%M") unless time.nil?
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end
def format_date(time = Time.now)
I18n.l(time.to_date) unless time.nil?
end
def format_datetime(time = Time.now)
I18n.l(time) unless time.nil?
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end
# Creates ajax-controlled-links for pagination
# see also the plugin "will_paginate"
def pagination_links_remote(collection, options = {})
per_page = options[:per_page] || @per_page
params = options[:params] || {}
update = options[:update] || nil
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# Translations
previous_label = '« ' + _('Previous')
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next_label = _('Next') + ' »'
# Merge other url-options for will_paginate
params = params.merge({:per_page => per_page})
will_paginate collection, { :params => params, :remote => true, :update => update,
:previous_label => previous_label, :next_label => next_label, }
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end
# Link-collection for per_page-options when using the pagination-plugin
def items_per_page(options = {})
per_page_options = options[:per_page_options] || [20, 50, 100]
current = options[:current] || @per_page
action = options[:action] || controller.action_name
update = options[:update] || nil
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links = []
per_page_options.each do |per_page|
unless per_page == current
links << link_to_remote(
per_page,
{ :url => { :action => action, :params => {:per_page => per_page}},
:before => "Element.show('loader')",
:success => "Element.hide('loader')",
:method => :get, :update => update } )
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else
links << per_page
end
end
return _('Per page: ') + links.join(" ")
end
def sort_td_class_helper(param)
result = 'class="sortup"' if params[:sort] == param
result = 'class="sortdown"' if params[:sort] == param + "_reverse"
return result
end
def sort_link_helper(text, param, per_page = (@per_page || 10) )
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key = param
key += "_reverse" if params[:sort] == param
options = {
:url => url_for(:params => params.merge({:sort => key, :page => nil, :per_page => per_page})),
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:before => "Element.show('loader')",
:success => "Element.hide('loader')",
:method => :get
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}
html_options = {
:title => _('Sort by this field'),
:href => url_for(:action => 'list', :params => params.merge({:sort => key, :page => nil, :per_page => per_page}))
}
link_to_remote(text, options, html_options)
end
# Generates a link to the top of the website
def link_to_top
link_to image_tag("arrow_up_red.png", :size => "16x16", :border => "0", :alt => "Nach oben"), "#"
end
# Returns the weekday. 0 is sunday, 1 is monday and so on
def weekday(dayNumber)
weekdays = ["Sonntag", "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag"]
return weekdays[dayNumber]
end
# highlights a phrase in given text
# based on the rails text-helper 'highlight'
def highlight_phrase(text, phrase, highlighter = '<strong class="highlight">\1</strong>')
unless phrase.blank? || text.nil?
phrase.split(' ').each {|keyword| text.gsub!(/(#{Regexp.escape(keyword)})/i, highlighter)}
end
return text
end
# to set a title for both the h1-tag and the title in the header
def title(page_title)
content_for(:title) { page_title }
end
def tab_is_active?(tab)
tab[:active].detect {|c| c == controller.controller_path }
end
def icon(name, options={})
icons = { :delete => { :file => 'b_drop.png', :alt => 'Löschen'},
:edit => { :file => 'b_edit.png', :alt => 'Bearbeiten'}}
options.merge!({:size => '16x16',:border => "0"})
options.merge!({:alt => icons[name][:alt]}) unless options[:alt]
image_tag icons[name][:file], options
end
# Remote links with default 'loader'.gif during request
def remote_link_to(text, options={})
remote_options = {:before => "Element.show('loader')", :success => "Element.hide('loader')"}
link_to_remote(text, remote_options.merge(options))
end
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end