Question

I am using Ruby (+ Sinatra) to work on one of my web projects.

I have an array with quite a bit of content and only want to display 10 of the array elements per page.

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So what I did so far is:

• creating an array with all of the content

  ary = ["ex1", "ex2", "ex3", … ,"ex60" ] // all elements
  

• splitting the array into subarrays

  ary.each_slice(10).to_a // subarrays with fewer content
  

Now, I need a way to split the subarrays into single arrays and give them a name,

for example:

@subAry1 # ex1, ex2, ex3, … ex10
@subAry2 # ex11, ex12, ex13, … ex20
@subAry3 # ex21, ex22, ex23, … ex30

I stuck on creating these arrays with a continuing number in the array name.

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When I would have my arrays split, I would use this in my .erb file:

<% currentAry = @subAry1 %>
<% currentAry.each do |element| %><%= element %><% end %>

and this to change the content, if the “next” button gets pressed:

currentAry = @subAry + '1'

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Can somebody help me, or is it even an effective way, to split/display array elments on my page?

Answer 1

How about an array of arrays? Here’s something to help you get started.

all = ary.each_slice(10).to_a
current_page = 0

In the ERB file:

<% all[current_page].each do |element| %><%= element %><% end %>

and after the “next” button gets pressed

current_page += 1