Develop Reference

Displaying data to a grid with ejs and express

what im trying to do is display news using newsAPI in a grid which is created in for each loop and it randomizes how it looks in each iteration. Problem that i have is obvious, im receiving 3 or 2 but only one instance of data from express each time it loops.Im trying to figure out how to keep grid randomized and receive exact number of data for each div inside the grid. Since its hard to explain here is the code:
EJS:
<div class="col-md-12">
<% let current = -1 %>
<% data.forEach(function(news){ %>
<% let count = Math.floor( Math.random() * Math.floor(4)) %>
<% if(count == 0 && count !== current){ %>
<div class="row py-2 px-1">
<div class="col-sm-12 col-md-8 bg border mainGrid">duh</div>
<div class="col-sm-12 col-md border mainGrid"></div>
</div>
<% current = count %>
<%}else if(count == 1 && count !== current){ %>
<div class="row py-2 px-1">
<div class="col-sm-12 col-md-5 bg border mainGrid">duh</div>
<div class="col-sm-12 col-md border mainGrid"></div>
<div class="col-sm-12 col-md-5 bg border mainGrid">duh</div>
</div>
<% current = count %>
<%}else if(count == 2 && count !== current){ %>
<div class="row py-2 px-1">
<div class="col-sm-12 col-md-3 bg border mainGrid">duh</div>
<div class="col-sm-12 col-md border mainGrid"></div>
</div>
<% current = count %>
<%}else if(count == 3 && count !== current){ %>
<div class="row py-2 px-1">
<div class="col-sm-12 col-md-4 bg border mainGrid">duh</div>
<div class="col-sm-12 col-md border mainGrid"></div>
<div class="col-sm-12 col-md-6 bg border mainGrid">duh</div>
</div>
<% current = count %>
<%}%>
<% }) %>
Express:
router.get("/",(req,res) => {
newsapi.v2.topHeadlines({
sources: 'bbc-news,the-verge',
language: 'en',
pageSize: 9
}).then(response => {
let data = response.articles;
console.log(data);
res.render("index",{data:data})
});
})
module.exports = router;
Thanks in advance!

If somebody wants to know how i solved it:
<div class="col-md-12">
<% let current = 0 %>
<% let count = 0 %>
<% let currentCount = 0 %>
<% data.forEach(function(news){ %>
<% if(current === 1){ %>
<%let gridcount = Math.floor((12 - count)/2); %>
<div class="col-sm-12 col-md-<%=gridcount%> border mainGrid">
<h2>
<%= news.title %>
</h2>
<p>
<%= news.description %>
</p>
</div>
<% current = 2 %>
<% }else if(current == 0){ %>
<% while(count == currentCount){ %>
<% count = Math.floor( Math.random() * Math.floor(4)) +3 %>
<% } %>
<div class="row">
<div class="col-sm-12 col-md-<%=count%> border mainGrid">
<h2>
<%= news.title %>
</h2>
<p>
<%= news.description %>
</p></div>
<% currentCount = count %>
<% current = 1 %>
<% }else if(current == 2){%>
<div class="col-sm-12 col-md border mainGrid">
<h2>
<%= news.title %>
</h2>
<p>
<%= news.description %>
</p>
</div>
</div>
<% current = 0 %>
<% } %>
<% }) %>
</div>

dynamically render div based on selectbox input rails 5 and select.js plugin

I have a Rails 5, ruby 2.4.0, bootstrap 4 alpha 6 app using the selectize.js plugin.
What I am trying to do is display device info based on the selected item in the select box.
Currently, When the page loads the div is hidden as it should be and the select box is displayed (as it should be) but when I select anything other than the first select option, it wont change the device in the div.
I am a java / ajax noob and am lost for a solution. Any assistance would be greatly appreciated!
my select-box:
<select class="form-control div-toggle" id="select-device" data-target=".device-names">
<option>Select Device</option>
<% #devices.each do |device| %>
<option value="<%= device.id %>" show=".<%= device.device_name %>"> <%= device.device_name.titleize %></option>
<% end %>
</select>
My Div to be rendered and displayed for each device when its selected:
<div class="container device-names">
<% #devices.each do |device_div| %>
<div class="<%= device_div.id %> invisible" id="result">
<div class="phoneDetailsContainer">
<div class="row">
<div class="col-sm-12">
<center><h5 class="deviceHeader"><%= device_div.manufacturer.name.titleize %> | <%= device_div.device_name.upcase %></h5></center>
</div>
</div>
<div class="row">
<div class="col-md-4 hidden-sm-down"></div>
<div class="col-sm-12 col-md-4" id="deviceDivImageContainer">
<center>
<% if device_div.image.present? %>
<%= image_tag device_div.image_url(:thumb), :class => "deviceImage" %>
<% else %>
<% end %>
</center>
</div>
<div class="col-md-4 hidden-sm-down"></div>
</div>
<div class="row">
<div class="col-sm-12 col-md-4"></div>
<div class="col-sm-12 col-md-4">
<center>
<span class="proceedDisclaimer">By clicking this button you agree that this is the device in your possession</span>
<%= link_to "Proceed to Carrier Selection", manufacturer_device_path(#manufacturer, device_div), class: 'btn btn-outline-primary proceedButton', :id => "proceed" %>
</center>
</div>
<div class="col-sm-12 col-md-4"></div>
</div>
</div>
</div>
<% end %>
</div>
my javaScript to call the div when the item is selected:
<script type="text/javascript">
var ready = function () {
// add code here
$('#result').hide();
$('#select-device').selectize({
});
$('#select-device').change(function(){
$('#result').show().removeClass('invisible')
});
//end code here
}
$(document).ready(ready);
$(document).on('page:load', ready);
$(document).on('turbolinks:load', ready);
</script>
Any assistance here would be greatly appreciated! please let me know if further info is required!

A fair warning. I am NOT much knowledgeable on ruby and thus my answer might be bit buggy on ruby side.
HTML
<div class="container device-names">
<% #devices.each do |device_div| %>
<!-- first id change -->
<div class="invisible" id="result<%= device_div.id %> ">
<div class="phoneDetailsContainer">
<div class="row">
<div class="col-sm-12">
<center><h5 class="deviceHeader"><%= device_div.manufacturer.name.titleize %> | <%= device_div.device_name.upcase %></h5></center>
</div>
</div>
<div class="row">
<div class="col-md-4 hidden-sm-down"></div>
<!-- second id change -->
<div class="col-sm-12 col-md-4" id="deviceDivImageContainer<%= device_div.id %> ">
<center>
<% if device_div.image.present? %>
<%= image_tag device_div.image_url(:thumb), :class => "deviceImage" %>
<% else %>
<% end %>
</center>
</div>
<div class="col-md-4 hidden-sm-down"></div>
</div>
<div class="row">
<div class="col-sm-12 col-md-4"></div>
<div class="col-sm-12 col-md-4">
<center>
<span class="proceedDisclaimer">By clicking this button you agree that this is the device in your possession</span>
<!-- third id change. Not knowing ruby i cannot help here -->
<%= link_to "Proceed to Carrier Selection", manufacturer_device_path(#manufacturer, device_div), class: 'btn btn-outline-primary proceedButton', :id => "proceed" %>
</center>
</div>
<div class="col-sm-12 col-md-4"></div>
</div>
</div>
</div>
<% end %>
</div>
Javascript
<script type="text/javascript">
$(document).ready(function(){
//result.hide is not wanted as elements are already having class invisible
//Assuming that the dropdown values have same values as element ids
$('#select-device').change(function(){
$('#'+$('#select-device').val()).removeClass('invisible')
});
});
</script>

Right now, your jQuery selector for $('#result') is going to return an array of all the elements which match your selector. You want to find the one which has the class of the id of the item. You can pass the target into the function like this
$('#select-device').change(function(e){
id = $(e.target).val()
$('.' + id).removeClass('hidden')
}

forEach usage with bootstrap grid system

I'm working on a blog site (in node.js), created a blog Schema, a forEach loop iterates over every blog and adds image, title,body to it :
Code :
<% blog.forEach(function(blog) { %>
<div class="col-md-4 col-sm-6">
<img src="<%= blog.image %>">
<div class="caption">
<h2><%= blog.title %></h2>
</div>
<span><%= blog.created.toDateString(); %></span>
<div class="relative">
<p><%- blog.body.substring(0,250); %></p>
<div class="absolute"></div>
</div>
</div>
<% }) %>
Because I've applied forEach, all blog posts have the same appearance.
Is there any chance that the 4th and 5th blog posts appear in different ways(col-md-6, i.e they both occupy half the space of the row)?

The second parameter of the forEach callback is for index:
<% blog.forEach(function(blog, idx) { %>
<% if (idx > 3) %>
<div class="col-md-6 col-sm-6">
<% else %>
<div class="col-md-4 col-sm-6">

How to put image on day event? clndr.js

Can someone help me?
I need to implement image on day event with clndr.js .
When I have events on some day, I need to put this image with the amount of events of this day.
I hope You will help.
This is my template when I have two events, I get this
<script id="clndrTemplate" type="text/template">
<div class="clndr-controls">
<div class="clndr-previous-button"><i class="fa fa-chevron-left"></i></div>
<div class="clndr-next-button"><i class="fa fa-chevron-right"></i></div>
<div class="month"><%= month %> <%= year %></div>
</div>
<div class="clndr-grid">
<div class="header-days">
<% _.each(daysOfTheWeek, function(day) { %>
<div class="header-day"><%= day %></div>
<% }); %>
<div class="days clearfix">
<% _.each(days, function(day) { %>
<div class="<%= day.classes %>" id="<%= day.id %>">
<span class="day-contents"><%= day.day %></span>
<% _.each(day.events, function(event){ %>
<div class="event">
<div class="event-images">
<span class="grey-img">
<img src="images/t-clndr.png" alt="">
</span>
<span class="white-img">
<img src="images/t-clndr-w.png" alt="">
</span>
</div>
<span class="amount-events">
<% %>
</span>
</div>
<% }) %>
</div>
<% }); %>
</div>
</div>
</div>
</script>

You can locate a <div> on each day (using CSS) which will contain the number of events, you should set the id of this div to be the date of its day, something like "d29-09-16".
Then use jQuery:
$("#d29-09-16").text(numOfEvents);
while numOfEvents is your counter of this day.

Ruby on Rails jQuery: Toggle not working

I am trying to create a button that shows/hides a div. It seems relatively easy, but whenever I click this button, it just does a refresh, and when I keep clicking it, it hides most of my page. Here is what I have so far. Also, I dont know if it matters but I am using foundation for most of the css
application.js
$(function() {
$(document).foundation();
});
$(document).ready(function() {
$('#message_button').click(function() {
$("#messages").toggle();
});
});
_userindex.html
<div class="row">
<div class="small-12 columns new-button">
<%= link_to 'New Job', new_job_path, class: 'button' %>
</div>
</div>
<div class="section-container auto" data-section>
<section>
<p class="title" data-section-title>Active Jobs</p>
<div class="content" data-section-content>
<% if #active.present? %>
<ul>
<% #active.each do |job| %>
<li class='panel'>
<div class="row">
<div class="small-12 columns">
<div class="row">
<div class="large-6 columns">
<span id="location"><strong>location</strong>: <%= job.location %></span>
</div>
<div class="large-6 columns">
<span id="status"><strong>status</strong>: <%= job.status %></span>
</div>
</div>
<div class='light panel bottom'>
<strong>job: <%= link_to job.name, job %></strong><br>
<%= job.description %>
</div>
</div>
</div>
<div class="row job-buttons">
<div class="small-6 columns">
MESSAGES BUTTON -->>> <%= link_to 'messages', '', class: 'button small secondary', id: "message_button" %>
</div>
<div class="small-6 columns">
<%= link_to 'cancel', job, method: :delete, data: {confirm: 'Are you sure?'}, class: 'button small alert' %>
</div>
</div>
<br />
I WANT TO HIDE THIS ENTIRE DIV ---->>>> <div id="messages">
<div class="row">
<div class="small-12 columns">
<div class="panel">
<%= form_for(#message) do |f| %>
<%= f.label :body, "Description" %>
<%= f.text_area :body %>
<%= f.hidden_field :job_id, value: job.id %>
<%= f.submit 'Create message', class: 'button small secondary' %>
<% end %>
</div>
</div>
</div>
<% jobs_messages = job.messages %>
<% if jobs_messages.present? %>
<ul>
<% jobs_messages.each do |m| %>
<% if m.user_id.present? %>
<% user = m.user %>
<% else %>
<% user = m.runner %>
<% end %>
<li class='panel'>
<div class='row'>
<div class='small-12 columns'>
<p> From: <%= user.login %> </p>
<p> Body: <%= m.body %>
</div>
</div>
</li>
<% end %>
</ul>
<% else %>
<div class="empty panel">
<p>no messages at the moment</p>
</div>
<% end %>
</div>
</li>
<% end %>
</ul>
<% else %>
<div class="empty panel">
<p>no active jobs at the moment</p>
</div>
<% end %>
</div>
</section>
<section>
<p class="title" data-section-title>Completed Jobs</p>
<div class="content" data-section-content>
<% if #completed.present? %>
<% else %>
<div class="empty panel">
<p>no completed jobs yet</p>
</div>
<% end %>
</div>
</section>
</div>
I am trying to an $().click action to the link_to button with id "message_button". Whenever this button/link is clicked, I want it to show/hide the "messages" div.
I am new to jQuery, rails, and foundation, so I left most of the code just in case anything was important. But I marked the message_button and the message div to help you better find it.

2 problems:
It looks to me as though you have a bad case of the "multiple IDs"!
You are not preventing the default behaviour of the link. (so when you click it, the page refreshes or navigates away)
Problem #2 is easy: call preventDefault() (usage example below).
Problem #1 is a little trickier...
You are creating <li> content within a loop, inside each of those <li> tags you have elements with the IDs #messages and #message_button. Multiple instances of an ID on the same page is not allowed. If you want, you can use classes instead of ids as you can have multiple instances of a class.
However, switching from IDs to Classes won't fix your problem, as if you use classes you'll just be toggling ALL messages when any message button is clicked.
Referring to this question here, you can easily get the index of the loop in your rails template:
<% #active.each do |job, index| %>
Your template/html code here
<% end %>
This exposes a new variable, index which you can use to decorate each of your messages and buttons with an index value to then specify which message you wish to show.
Note: I'm not sure if this is the best approach, but this should work. It's been a while since I've used Rails, so there might be errors. I've included the code below just to demonstrate the possible solution:
application.js:
$(function() {
$(document).foundation();
});
$(document).ready(function() {
//NOTE that I am selecting on a class here
$('.message_button').click(function(e) {
//You also need to prevent the default behaviour of
//the link. That is why the page keeps refreshing.
e.preventDefault();
//get the index value I appended to this elements ID
var msgButtonIndex = $(this).attr("id").replace("message_button_","");
//select and toggle the respective message
$("#messages_" + msgButtonIndex).toggle();
});
});
_userindex.html:
<div class="row">
<div class="small-12 columns new-button">
<%= link_to 'New Job', new_job_path, class: 'button' %>
</div>
</div>
<div class="section-container auto" data-section>
<section>
<p class="title" data-section-title>Active Jobs</p>
<div class="content" data-section-content>
<% if #active.present? %>
<ul>
<% #active.each do |job,index| %>
<li class='panel'>
<div class="row">
<div class="small-12 columns">
<div class="row">
<div class="large-6 columns">
<span id="location"><strong>location</strong>: <%= job.location %></span>
</div>
<div class="large-6 columns">
<span id="status"><strong>status</strong>: <%= job.status %></span>
</div>
</div>
<div class='light panel bottom'>
<strong>job: <%= link_to job.name, job %></strong><br>
<%= job.description %>
</div>
</div>
</div>
<div class="row job-buttons">
<div class="small-6 columns">
<%# Adding a "message_button" class and a decorated "message_button_{index}" ID! %>
<%= link_to 'messages', '', class: 'button small secondary message_button', id: "message_button_" + index.to_s %>
</div>
<div class="small-6 columns">
<%= link_to 'cancel', job, method: :delete, data: {confirm: 'Are you sure?'}, class: 'button small alert' %>
</div>
</div>
<br />
<%# decorating this ID too %>
<div id="messages_<%= index.to_s %>">
<div class="row">
<div class="small-12 columns">
<div class="panel">
<%= form_for(#message) do |f| %>
<%= f.label :body, "Description" %>
<%= f.text_area :body %>
<%= f.hidden_field :job_id, value: job.id %>
<%= f.submit 'Create message', class: 'button small secondary' %>
<% end %>
</div>
</div>
</div>
<% jobs_messages = job.messages %>
<% if jobs_messages.present? %>
<ul>
<% jobs_messages.each do |m| %>
<% if m.user_id.present? %>
<% user = m.user %>
<% else %>
<% user = m.runner %>
<% end %>
<li class='panel'>
<div class='row'>
<div class='small-12 columns'>
<p> From: <%= user.login %> </p>
<p> Body: <%= m.body %>
</div>
</div>
</li>
<% end %>
</ul>
<% else %>
<div class="empty panel">
<p>no messages at the moment</p>
</div>
<% end %>
</div>
</li>
<% end %>
</ul>
<% else %>
<div class="empty panel">
<p>no active jobs at the moment</p>
</div>
<% end %>
</div>
</section>
<section>
<p class="title" data-section-title>Completed Jobs</p>
<div class="content" data-section-content>
<% if #completed.present? %>
<% else %>
<div class="empty panel">
<p>no completed jobs yet</p>
</div>
<% end %>
</div>
</section>
</div>