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PORuby on Rails: How to get the current week and loop through it to display its days?
 

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  1. PORuby on Rails: How to get the current week and loop through it to display its days?
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    <p><img src="https://i.stack.imgur.com/QQ4HB.jpg" alt="enter image description here"></p> <p>The above picture is what I mean. I think the code should be something like:</p> <pre><code> &lt;% @days_from_this_week.each do |day| %&gt; &lt;%= day.name %&gt; &lt;!--e.g. Monday--&gt; &lt;% day.sessions do |session| %&gt; &lt;% @session_categories.each do |category| %&gt; &lt;!--categories means the Sesion1/2/3/4 category A day's sessionX could be empty, so we have to determine wheather a session matches its cateogry, and then display it in the table --&gt; &lt;% if session.category == category %&gt; &lt;%= session.content %&gt; &lt;% end %&gt; &lt;% end %&gt; &lt;% end %&gt; &lt;% end %&gt; </code></pre> <p>But how to get the <code>current week</code>? And how to get the <code>name of a day</code>? And to navigate through this calendar, <code>pre_week</code> and <code>next_week</code> is also needed.</p> <p>I found<code>prev_week</code> and <code>next_week</code> method, but it seems like return a certain day after a week, which is not I need. </p> <p>A possible solution is <a href="https://stackoverflow.com/questions/11932091/rails-get-the-current-weeks-and-months-start-and-end-dates">here</a>, but I don't know how to use it.</p> <p>UPDATE: I found a workable solution, but still looking for better code:</p> <pre><code> &lt;!-- @date = params[:date] ? Date.parse(params[:date]) : Date.today first=@date.at_beginning_of_week last=@date.at_beginning_of_week + 6 @days= (first..last).to_a--&gt; &lt;% @days.each do |day| %&gt; &lt;div&gt; &lt;%= day %&gt; &lt;/div&gt; &lt;% end %&gt; </code></pre>
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    1. CONeed more information than just this. What are @days_from_this_week and @session_categories? How are they related?
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    2. CO`@days_from_this_week` means the days in the current week, which is what I'm asking `How to get the current week`. `@session_categories` means that a session could belong to different categories( see the table picture, there are session1/2/3/4), so I have to loop through them to determine whether a session matches the category and then display it.
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    3. CO`session` belongs_to `category`, a `session` has a `date` and a `category` attritube.
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