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javascriptfunctionbackbone.jshrefrivets.js

rivets with backbone: calling method (function) on href/onclick attribute


what i'm trying to do is call a funcation like below, further i want to pass current element (item) to function as parameter.

<tr rv-each-item="items:models">
    <td><a href="javascript:selectedItem(item);">{ item:Name }</a></td>
</tr>

var selectedItem = function (item)
{
    console.log(item);
}

while searching around i found below discussion helpful but could not solve my problem as it does not implement backbone

https://github.com/mikeric/rivets/issues/554

Rivets.js: When button is clicked, call a function with an argument from a data binding


Solution

  • While working around i found different approaches that can help, posting here if someone can get help or improve if there is any thing needs to.

    Option 1

    <body>
        <div rv-each-book="model.books">
            <button rv-on-click="model.selectedBook | args book">
                Read the book {book}
            </button>
        </div>
    </body>
    
    <script type="text/javascript">
        rivets.formatters["args"] = function (fn) {
            var args = Array.prototype.slice.call(arguments, 1);
            return function () {
                return fn.apply(null, args);
    
            };
        };
    
        rvBinder = rivets.bind(document.body, {
            model: {
                selectedBook: function (book) {
                    alert("Selected book is " + book);
                },
                books: ["Asp.Net", "Javascript"]
            }
        });
    </script>
    

    Option 2 Create a custom binder

    <body>
        <div rv-each-book="books">
            <a rv-cust-href="book">
                Read the book {book}
            </a>
        </div>
    </body>
    
    <script type="text/javascript">
    
        rivets.binders['cust-href'] = function (el, value) {
            //el.href = '/Books/Find/' + value;
            //OR
            el.onclick = function() { alert(value);};
        }
    
        rvBinder = rivets.bind(document.body, {
                books: ["Asp.Net", "Javascript"]
        });
    </script>
    

    Option 3 As I was using rivetsjs with backbone, i can also get advantage of events on backbone view

    // backbone view
    events: {
        'click #linkid': 'linkclicked'
    },
    linkclicked: function (e){
        console.log(this.model.get("Name"));
    },
    
    <td><a id="linkid" href="#">{ item:Name }</a></td>