78 lines
2.1 KiB
Markdown
78 lines
2.1 KiB
Markdown
title: Rails helpers
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---
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### Date helpers
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http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html
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### Date
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distance_of_time_in_words(Time.now, project.end_date) #=> 3 hours
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distance_of_time_in_words_to_now project.end_date #=> 3 hours
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### Time select
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# Creates a time select tag that, when POSTed, will be stored in the article
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# variable in the sunrise attribute.
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time_select "article", "start_time"
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# All options are optional
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time_select "article", "start_time", \
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:include_seconds => true,
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:minute_step => 15,
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:prompt => true,
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:prompt => { :hour => "Choose hr", :minute => "Choose min", :second => "Choose sec" },
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:ampm => true
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# For dates (all options are optional)
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date_select "article", "written_on", \
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:start_year => 1995,
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:use_month_numbers => true,
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:discard_day => true,
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:include_blank => true,
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:order => [:day, :month, :year],
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:default => 3.days.from_now,
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:default => { :day => 20 },
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:prompt => { :day => 'Select day', :month => 'Select month', :year => 'Select year' }
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### Time tag
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time_tag Date.today #=> <time datetime="2010-11-04">November 04, 2010<%rtime>
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time_tag Time.now #=> <time datetime="2010-11-04T17:55:45+01:00">November 04, 2010 17:55</time>
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time_tag Date.yesterday, 'Yesterday' #=> <time datetime="2010-11-03">Yesterday<%rtime>
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time_tag Date.today, :pubdate => true #=> <time datetime="2010-11-04" pubdate="pubdate">November 04, 2010</time>
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## Forms
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### Forms
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= form_for @post do |f|
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### Fields
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f.check_box :enabled
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f.text_field :title
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f.text_area :body, \
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:size => '60x12'
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### Select dropdowns
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f.time_zone_select :time_zone
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f.date_select :birthday
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f.select :city_id, [['Lisbon',1], ['Madrid',2], ...], 4 # (4 = selected)
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f.collection_select :city_id, City.all, :id, :name
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options_for_select [['Lisbon',1], ['Madrid', 2], ...], 4 # Just makes <option> tags
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### The rest
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f.submit "Create"
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### Files
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= form_for @post, :multipart => true do |f|
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= f.file_field :picture
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