Magento 2 knockout component scope

I have two knockout components. The xml in layout is:

<body>

    <referenceContainer name="content">

        <block class="VendorModuleBlockList" name="some_name" template="list.phtml">

        <arguments>

            <argument name="jsLayout" xsi:type="array">

                <item name="components" xsi:type="array">

                    <item name="js_list" xsi:type="array">

                        <item name="component" xsi:type="string">Vendor_Module/js/js-list</item>

                        <item name="config" xsi:type="array">

                            <item name="template" xsi:type="string">Vendor_Module/js-list</item>

                        </item>

                        <item name="children" xsi:type="array">

                            <item name="js_item" xsi:type="array">

                                <item name="component" xsi:type="string">Vendor_Module/js/js-item</item>

                                <item name="config" xsi:type="array">

                                    <item name="template" xsi:type="string">Vendor_Module/js-item</item>

                                </item>

                            </item>

                        </item>

                    </item>

                </item>

            </argument>

        </arguments>

        </block>

    </referenceContainer>

</body>

The component js_list has a template that contains the fallowing:

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <p data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <p data-bind="text: testVarThatPrintsTest"></p>

    </p>

</div>

The content of the template from the component js_item is printed out but when I try to access the variable defined in it testVarThatPrintsTest :

define(

    ['jquery', 'ko', 'uiComponent', 'Magento_Ui/js/modal/modal', 'domReady!'],

    function($, ko, Component, modal) {

        'use strict';



        return Component.extend({



            initialize: function() {

                this._super();

            },



            defaults: {

                template: 'Vendor_Module/js-item',

                testVarThatPrintsTest: 'TEST TEST TEST@'



            }

        });

    }

);

I get the fallowing error:

Message: testVarThatPrintsTest is not defined

    at text (eval at createBindingsStringEvaluator (knockout.js:2624), <anonymous>:3:57)

    at update (knockout.js:4260)

    at ko.dependentObservable.disposeWhenNodeIsRemoved (knockout.js:3004)

    at evaluateImmediate (knockout.js:1737)

    at Object.ko.computed.ko.dependentObservable (knockout.js:1946)

    at knockout.js:3002

    at Object.arrayForEach (knockout.js:151)

    at applyBindingsToNodeInternal (knockout.js:2974)

    at applyBindingsToNodeAndDescendantsInternal (knockout.js:2854)

    at Object.ko.applyBindings (knockout.js:3065)

What is the problem here?

edited Nov 13 '17 at 10:42

asked Nov 13 '17 at 7:57

Lachezar Raychev

65331335

bumped to the homepage by Community♦ 11 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

remove comma at the end from string testVarThatPrintsTest: 'TEST TEST TEST@',

– Rakesh Jesadiya
Nov 13 '17 at 10:33

that is not the problem

– Lachezar Raychev
Nov 13 '17 at 10:36

add a comment |

I have two knockout components. The xml in layout is:

<body>

    <referenceContainer name="content">

        <block class="VendorModuleBlockList" name="some_name" template="list.phtml">

        <arguments>

            <argument name="jsLayout" xsi:type="array">

                <item name="components" xsi:type="array">

                    <item name="js_list" xsi:type="array">

                        <item name="component" xsi:type="string">Vendor_Module/js/js-list</item>

                        <item name="config" xsi:type="array">

                            <item name="template" xsi:type="string">Vendor_Module/js-list</item>

                        </item>

                        <item name="children" xsi:type="array">

                            <item name="js_item" xsi:type="array">

                                <item name="component" xsi:type="string">Vendor_Module/js/js-item</item>

                                <item name="config" xsi:type="array">

                                    <item name="template" xsi:type="string">Vendor_Module/js-item</item>

                                </item>

                            </item>

                        </item>

                    </item>

                </item>

            </argument>

        </arguments>

        </block>

    </referenceContainer>

</body>

The component js_list has a template that contains the fallowing:

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <p data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <p data-bind="text: testVarThatPrintsTest"></p>

    </p>

</div>

The content of the template from the component js_item is printed out but when I try to access the variable defined in it testVarThatPrintsTest :

define(

    ['jquery', 'ko', 'uiComponent', 'Magento_Ui/js/modal/modal', 'domReady!'],

    function($, ko, Component, modal) {

        'use strict';



        return Component.extend({



            initialize: function() {

                this._super();

            },



            defaults: {

                template: 'Vendor_Module/js-item',

                testVarThatPrintsTest: 'TEST TEST TEST@'



            }

        });

    }

);

I get the fallowing error:

Message: testVarThatPrintsTest is not defined

    at text (eval at createBindingsStringEvaluator (knockout.js:2624), <anonymous>:3:57)

    at update (knockout.js:4260)

    at ko.dependentObservable.disposeWhenNodeIsRemoved (knockout.js:3004)

    at evaluateImmediate (knockout.js:1737)

    at Object.ko.computed.ko.dependentObservable (knockout.js:1946)

    at knockout.js:3002

    at Object.arrayForEach (knockout.js:151)

    at applyBindingsToNodeInternal (knockout.js:2974)

    at applyBindingsToNodeAndDescendantsInternal (knockout.js:2854)

    at Object.ko.applyBindings (knockout.js:3065)

What is the problem here?

edited Nov 13 '17 at 10:42

asked Nov 13 '17 at 7:57

Lachezar Raychev

65331335

bumped to the homepage by Community♦ 11 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

remove comma at the end from string testVarThatPrintsTest: 'TEST TEST TEST@',

– Rakesh Jesadiya
Nov 13 '17 at 10:33

that is not the problem

– Lachezar Raychev
Nov 13 '17 at 10:36

add a comment |

I have two knockout components. The xml in layout is:

<body>

    <referenceContainer name="content">

        <block class="VendorModuleBlockList" name="some_name" template="list.phtml">

        <arguments>

            <argument name="jsLayout" xsi:type="array">

                <item name="components" xsi:type="array">

                    <item name="js_list" xsi:type="array">

                        <item name="component" xsi:type="string">Vendor_Module/js/js-list</item>

                        <item name="config" xsi:type="array">

                            <item name="template" xsi:type="string">Vendor_Module/js-list</item>

                        </item>

                        <item name="children" xsi:type="array">

                            <item name="js_item" xsi:type="array">

                                <item name="component" xsi:type="string">Vendor_Module/js/js-item</item>

                                <item name="config" xsi:type="array">

                                    <item name="template" xsi:type="string">Vendor_Module/js-item</item>

                                </item>

                            </item>

                        </item>

                    </item>

                </item>

            </argument>

        </arguments>

        </block>

    </referenceContainer>

</body>

The component js_list has a template that contains the fallowing:

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <p data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <p data-bind="text: testVarThatPrintsTest"></p>

    </p>

</div>

The content of the template from the component js_item is printed out but when I try to access the variable defined in it testVarThatPrintsTest :

define(

    ['jquery', 'ko', 'uiComponent', 'Magento_Ui/js/modal/modal', 'domReady!'],

    function($, ko, Component, modal) {

        'use strict';



        return Component.extend({



            initialize: function() {

                this._super();

            },



            defaults: {

                template: 'Vendor_Module/js-item',

                testVarThatPrintsTest: 'TEST TEST TEST@'



            }

        });

    }

);

I get the fallowing error:

Message: testVarThatPrintsTest is not defined

    at text (eval at createBindingsStringEvaluator (knockout.js:2624), <anonymous>:3:57)

    at update (knockout.js:4260)

    at ko.dependentObservable.disposeWhenNodeIsRemoved (knockout.js:3004)

    at evaluateImmediate (knockout.js:1737)

    at Object.ko.computed.ko.dependentObservable (knockout.js:1946)

    at knockout.js:3002

    at Object.arrayForEach (knockout.js:151)

    at applyBindingsToNodeInternal (knockout.js:2974)

    at applyBindingsToNodeAndDescendantsInternal (knockout.js:2854)

    at Object.ko.applyBindings (knockout.js:3065)

What is the problem here?

edited Nov 13 '17 at 10:42

asked Nov 13 '17 at 7:57

Lachezar Raychev

65331335

I have two knockout components. The xml in layout is:

<body>

    <referenceContainer name="content">

        <block class="VendorModuleBlockList" name="some_name" template="list.phtml">

        <arguments>

            <argument name="jsLayout" xsi:type="array">

                <item name="components" xsi:type="array">

                    <item name="js_list" xsi:type="array">

                        <item name="component" xsi:type="string">Vendor_Module/js/js-list</item>

                        <item name="config" xsi:type="array">

                            <item name="template" xsi:type="string">Vendor_Module/js-list</item>

                        </item>

                        <item name="children" xsi:type="array">

                            <item name="js_item" xsi:type="array">

                                <item name="component" xsi:type="string">Vendor_Module/js/js-item</item>

                                <item name="config" xsi:type="array">

                                    <item name="template" xsi:type="string">Vendor_Module/js-item</item>

                                </item>

                            </item>

                        </item>

                    </item>

                </item>

            </argument>

        </arguments>

        </block>

    </referenceContainer>

</body>

The component js_list has a template that contains the fallowing:

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <p data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <p data-bind="text: testVarThatPrintsTest"></p>

    </p>

</div>

The content of the template from the component js_item is printed out but when I try to access the variable defined in it testVarThatPrintsTest :

define(

    ['jquery', 'ko', 'uiComponent', 'Magento_Ui/js/modal/modal', 'domReady!'],

    function($, ko, Component, modal) {

        'use strict';



        return Component.extend({



            initialize: function() {

                this._super();

            },



            defaults: {

                template: 'Vendor_Module/js-item',

                testVarThatPrintsTest: 'TEST TEST TEST@'



            }

        });

    }

);

I get the fallowing error:

Message: testVarThatPrintsTest is not defined

    at text (eval at createBindingsStringEvaluator (knockout.js:2624), <anonymous>:3:57)

    at update (knockout.js:4260)

    at ko.dependentObservable.disposeWhenNodeIsRemoved (knockout.js:3004)

    at evaluateImmediate (knockout.js:1737)

    at Object.ko.computed.ko.dependentObservable (knockout.js:1946)

    at knockout.js:3002

    at Object.arrayForEach (knockout.js:151)

    at applyBindingsToNodeInternal (knockout.js:2974)

    at applyBindingsToNodeAndDescendantsInternal (knockout.js:2854)

    at Object.ko.applyBindings (knockout.js:3065)

What is the problem here?

magento-2.1 uicomponent knockoutjs

edited Nov 13 '17 at 10:42

asked Nov 13 '17 at 7:57

Lachezar Raychev

65331335

edited Nov 13 '17 at 10:42

asked Nov 13 '17 at 7:57

Lachezar Raychev

65331335

edited Nov 13 '17 at 10:42

asked Nov 13 '17 at 7:57

Lachezar Raychev

65331335

asked Nov 13 '17 at 7:57

Lachezar Raychev

65331335

asked Nov 13 '17 at 7:57

Lachezar Raychev

65331335

bumped to the homepage by Community♦ 11 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

bumped to the homepage by Community♦ 11 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

remove comma at the end from string testVarThatPrintsTest: 'TEST TEST TEST@',

– Rakesh Jesadiya
Nov 13 '17 at 10:33

that is not the problem

– Lachezar Raychev
Nov 13 '17 at 10:36

add a comment |

remove comma at the end from string testVarThatPrintsTest: 'TEST TEST TEST@',

– Rakesh Jesadiya
Nov 13 '17 at 10:33

that is not the problem

– Lachezar Raychev
Nov 13 '17 at 10:36

remove comma at the end from string testVarThatPrintsTest: 'TEST TEST TEST@',

– Rakesh Jesadiya
Nov 13 '17 at 10:33

that is not the problem

– Lachezar Raychev
Nov 13 '17 at 10:36

add a comment |

1 Answer
1

active

oldest

votes

The problem was that the scope and the binding happened to a

element. Probably has something to do with the inline nature of the element and the fact that I was trying to add block elements(from the child component template) to the content of an inline element. When I changed the code to

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <div data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <div data-bind="text: testVarThatPrintsTest"></div>

    </div>

</div>

Everything started working just fine.

answered Nov 13 '17 at 12:12

Lachezar Raychev

65331335

add a comment |

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1 Answer
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oldest

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The problem was that the scope and the binding happened to a

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <div data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <div data-bind="text: testVarThatPrintsTest"></div>

    </div>

</div>

Everything started working just fine.

answered Nov 13 '17 at 12:12

Lachezar Raychev

65331335

add a comment |

The problem was that the scope and the binding happened to a

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <div data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <div data-bind="text: testVarThatPrintsTest"></div>

    </div>

</div>

Everything started working just fine.

answered Nov 13 '17 at 12:12

Lachezar Raychev

65331335

add a comment |

The problem was that the scope and the binding happened to a

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <div data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <div data-bind="text: testVarThatPrintsTest"></div>

    </div>

</div>

Everything started working just fine.

answered Nov 13 '17 at 12:12

Lachezar Raychev

65331335

The problem was that the scope and the binding happened to a

<div data-bind="foreach: someArray, visible: someArray().length > 0 ">

    <div data-bind="scope: 'js_list.js_item'">

        <!-- ko template: getTemplate() --><!-- /ko -->

        <div data-bind="text: testVarThatPrintsTest"></div>

    </div>

</div>

Everything started working just fine.

answered Nov 13 '17 at 12:12

Lachezar Raychev

65331335

answered Nov 13 '17 at 12:12

Lachezar Raychev

65331335

answered Nov 13 '17 at 12:12

Lachezar Raychev

65331335

answered Nov 13 '17 at 12:12

Lachezar Raychev

65331335

add a comment |

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