Retrieve information about the clicked item using the Backbone framework

Question

Retrieve information about the clicked item using the Backbone framework

I have a unique webpage that showcases an impressive collection of books. Each book listed on the page comes with essential information such as the title, price, and description. This data is imported from a JSON file.

Excitingly, when users click on any of the books displayed, a captivating lightbox (bootstrap modal) pops up to showcase more details about the selected book. Additionally, users can leave comments on the book, so it's crucial to collect and send the book ID along with their comment.

I'm currently unsure about the most efficient approach for retrieving the data associated with the clicked book. Can you provide any guidance or suggestions?

My current code implementation, which includes the lightbox feature, is shown below:

Backbone:

var Book = Backbone.Model.extend();

    var BookList = Backbone.Collection.extend({
        model: Book,
        url: 'json/books.json'
    });

    var BookView = Backbone.View.extend({
        el: '.booksList',
        template: _.template($('#booksTemplate').html()),
        render: function(){
            _.each(this.model.models, function(model){
                this.$el.append(this.template({
                    data: model.toJSON()
                }));
            }, this);
            return this;
        }
    });

    var AppView = Backbone.View.extend({
        el: 'body',
        initialize: function(){
            var bookList = new BookList();
            var bookView = new BookView({
                model: bookList
            });
            bookList.bind('reset', function(){
                bookView.render();
            });
            bookList.fetch();
        }
    });

    var appView = new AppView();

Template:

<script id="booksTemplate" type="text/template">
    <div class="book">
        <div class="bookDetails">
            <h3><%= data.title %></h3>
            <p><%= data.price %></p>
        </div>
        <p><%= data.description %></p>
        <a href="#myModal" data-toggle="modal">bid</a>
    </div>

    <div id="myModal" class="modal hide fade">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
            <h3><%= data.title %></h3>
        </div>
        <div class="modal-body">    
            <form action="#" method="post">
            <input type="text" name="comment" id="comment"  />
            </form>
        </div>
        <div class="modal-footer">
            <a href="#" class="btn close" data-dismiss="modal" aria-hidden="true">Close</a>   
        </div>
    </div>
</script>

javascript jquery backbone.js underscore.js click

Answer 1

Answer №1

Pay attention to the occurrences happening in your perspective. Origin.

Essentially, you will possess something similar to this within your viewpoint:

var MagazineView = Backbone.View.extend({
    el: '.magazinesList',
    template: _.template($('#magazinesTemplate').html()),
    display: function(){
        _.each(this.model.models, function(model){
            this.$el.append(this.template({
                data: model.toJSON()
            }));
        }, this);
        return this;
    },
    occasions: {
      'click': 'revealModal'
      // You could also use 'click selector', refer to the documentation
    },
    revealModal: function() {
      // Here the context signifies your point of view
      // Therefore, this.model will provide you with your assortment, thus leading to the usage of the information  
    }
});

However, I personally believe that instead of having a complete view for the collection, you ought to have several views, each dedicated to one particular parameter (=book). But hey, that's just my personal standpoint.

Edit: particulars
Personally, I do not create opinions on collections. Instead, I prefer wrapping up collections in another signifier (e.g., considering you have a list of books as an example, a bookshelf...). However, that's solely pertinent if you require a unique component apart from the views along with their lists.

To clarify further, suppose you arranged your books using genres. This would necessitate a wraparound view to exhibit a title (informing the user of the genre). Consequently, you can utilize a wraparound signifier for your collection.
Now, imagine that all you desire is displaying every single book as one. Here you may simply incorporate numerous views equivalent to the number of books within a particular div or ul element. Therefore, it would not be necessary to isolate and bind your collection.

I could go on indefinitely discussing the how, when, and where I constitute my viewpoints. Nevertheless, this is not the focus here, nor am I sufficiently certified to undertake such matters (as I have not had any formal education in computer science; therefore, you are free to question anything I express, as it will not cause any offense on my part). Essentially, you can just modify your existing code:

initialize: function(){
  var magazineList = new MagazineList;
  // The parenthesis is removed now
  // For better clarity, see the separate "new MagazineList" which produces a fresh object
  // However, observe "MagazineList()" which merely invokes the function itself
  magazineList.each(function(magazine) {
    new MagazineView({model: magazine});
    // It is possible that you do not require "magazine", using "this" instead might suffice, but I am uncertain  
  });

In addition, there's also the concern regarding binding. Again, I won't provide an exact solution, and it's better if you search for one applicable to your requirements. However, it can be relatively straightforward by incorporating bindings inside the initialize function of the views. Numerous possibilities exist.

Answer 2

Pay attention to the occurrences happening in your perspective. Origin.

Essentially, you will possess something similar to this within your viewpoint:

var MagazineView = Backbone.View.extend({
    el: '.magazinesList',
    template: _.template($('#magazinesTemplate').html()),
    display: function(){
        _.each(this.model.models, function(model){
            this.$el.append(this.template({
                data: model.toJSON()
            }));
        }, this);
        return this;
    },
    occasions: {
      'click': 'revealModal'
      // You could also use 'click selector', refer to the documentation
    },
    revealModal: function() {
      // Here the context signifies your point of view
      // Therefore, this.model will provide you with your assortment, thus leading to the usage of the information  
    }
});

However, I personally believe that instead of having a complete view for the collection, you ought to have several views, each dedicated to one particular parameter (=book). But hey, that's just my personal standpoint.

Edit: particulars
Personally, I do not create opinions on collections. Instead, I prefer wrapping up collections in another signifier (e.g., considering you have a list of books as an example, a bookshelf...). However, that's solely pertinent if you require a unique component apart from the views along with their lists.

To clarify further, suppose you arranged your books using genres. This would necessitate a wraparound view to exhibit a title (informing the user of the genre). Consequently, you can utilize a wraparound signifier for your collection.
Now, imagine that all you desire is displaying every single book as one. Here you may simply incorporate numerous views equivalent to the number of books within a particular div or ul element. Therefore, it would not be necessary to isolate and bind your collection.

I could go on indefinitely discussing the how, when, and where I constitute my viewpoints. Nevertheless, this is not the focus here, nor am I sufficiently certified to undertake such matters (as I have not had any formal education in computer science; therefore, you are free to question anything I express, as it will not cause any offense on my part). Essentially, you can just modify your existing code:

initialize: function(){
  var magazineList = new MagazineList;
  // The parenthesis is removed now
  // For better clarity, see the separate "new MagazineList" which produces a fresh object
  // However, observe "MagazineList()" which merely invokes the function itself
  magazineList.each(function(magazine) {
    new MagazineView({model: magazine});
    // It is possible that you do not require "magazine", using "this" instead might suffice, but I am uncertain  
  });

In addition, there's also the concern regarding binding. Again, I won't provide an exact solution, and it's better if you search for one applicable to your requirements. However, it can be relatively straightforward by incorporating bindings inside the initialize function of the views. Numerous possibilities exist.

Retrieve information about the clicked item using the Backbone framework

Answer №1

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