312 lines
8.7 KiB
HTML
312 lines
8.7 KiB
HTML
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This is <a href="."><em>Devhints.io cheatsheets</em></a> — a collection of cheatsheets I've written.
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<div class='post-item'>
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<div class='post-headline -cheatsheet'>
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<p class='prelude'><span></span></p>
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<h1><span>Helpers</span></h1>
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</div>
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</div>
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<div class='post-content -cheatsheet'>
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<h3 id="date">Date</h3>
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<pre><code>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_ago_in_words 3.minutes.ago #=> "3 minutes"
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</code></pre>
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<h3 id="numbers">Numbers</h3>
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<pre><code>number_to_currency 20.33
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number_to_currency 20.33, precision: 0
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number_with_precision 3.14159, precision: 2
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number_to_percentage 32 #=> "32%"
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number_with_delimiter 2048 #=> "2,048"
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number_to_human 12000000 #=> "12 million"
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number_to_human_size 12000000 #=> "12 MB"
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number_to_phone "5551234" #=> "555-1234"
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</code></pre>
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<h3 id="cache">Cache</h3>
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<pre><code><% cache project do %>
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<% cache [project, current_user] do %>
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<% cache_if admin?, project do %>
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<% cache_unless admin?, project do %>
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</code></pre>
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<h3 id="tags">Tags</h3>
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<pre><code>tag("br")
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tag("img", src: "image.jpg")
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content_tag(:p, "Hello")
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</code></pre>
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<h3 id="time-select">Time select</h3>
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<pre><code># 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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</code></pre>
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<h3 id="time-tag">Time tag</h3>
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<pre><code>time_tag Date.today
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#=> '<time datetime="2010-11-04">November 04, 2010<%rtime>'
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time_tag Time.now
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#=> '<time datetime="2010-11-04T17:55:45+01:00">November 04, 2010 17:55</time>'
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time_tag Date.yesterday, 'Yesterday'
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#=> '<time datetime="2010-11-03">Yesterday<%rtime>'
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time_tag Date.today, pubdate: true
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#=> '<time datetime="2010-11-04" pubdate="pubdate">November 04, 2010</time>'
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time_tag Date.today, \
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format: :short_date # (en.time.formats.short_date)
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</code></pre>
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<h3 id="files">Files</h3>
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<pre><code>= form_for @post, multipart: true do |f|
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= f.file_field :picture
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</code></pre>
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<h3 id="i18n">i18n</h3>
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<pre><code>t('folders')
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t('folders.save')
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l(Time.now)
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t('x_files', count: files.count)
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# files:
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# one: 'one file'
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# other: '%{count} files'
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</code></pre>
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<h3 id="references">References</h3>
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<pre><code>* http://api.rubyonrails.org/classes/ActionView/Helpers.html
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</code></pre>
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<li class="twitter link hint--bottom" data-hint="Share on Twitter"><a href="https://twitter.com/intent/tweet?text=The%20ultimate%20cheatsheet%20for%20Helpers.%20https://devhints.io/rails-helpers.html" target="share"><span class="text"></span></a></li>
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</div>
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</div>
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<div class="about-the-site">
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<div class="container">
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<p class='blurb'>
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<strong><a href=".">Devhints.io cheatsheets</a></strong> is a collection of cheatsheets I've written over the years.
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Suggestions and corrections? <a href='https://github.com/rstacruz/cheatsheets/issues/907'>Send them in</a>.
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<i class='fleuron'></i>
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I'm <a href="http://ricostacruz.com">Rico Sta. Cruz</a>.
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Check out my <a href="http://ricostacruz.com/til">Today I learned blog</a> for more.
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