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Knockout js : Read parent of parent's data



The 2019 Stack Overflow Developer Survey Results Are In
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Magento 2 Knockout JS data binding issueMagento 2: Can't call parent function in JS / knockout fileMagento 2 custom module override knockout templateMagento 2.1 Create a filter in the product grid by new attributeMagento 2 Add new field to Magento_User admin formMagento 2 how to get product attribute options on checkout cartCalling knockout js with php paramsMagento 2 : Bind data on ajax response using knockout not working properMagento 2 : knockout data-bind:click not workingMagento 2: Knockout js dynamic content binding issue



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2















I want to read the parent of parent elements data. But, I can't able to read it properly.



My Array Screenshot :



enter image description here



My Code :



<!-- ko foreach: data: Object.keys($parent.optionParam()[main_id]), as: 'attribute' -->
<div class="product-custom-option-select">
<p style="font-weight:bold;color:blue" data-bind="text:attribute"></p>
<!-- ko if: Array.isArray(Object.keys($parent.optionParam()[main_id][attribute])) -->
<p style="font-weight:bold;color:green" data-bind="text:attribute"></p>
<!-- ko foreach: $parents[1].optionParam[$parentContext.$index()][attribute] -->
<p class="options-label" data-bind="text:sub_id"></p>
<!-- /ko -->
<!-- /ko -->
<!-- ko if: !Array.isArray($parent.optionParam()[$index][attribute]) -->
<p style="font-weight:bold;color:red" data-bind="text:attribute"></p>
<p class="options-label" data-bind="text:attribute[$parents[1].main_id]"></p>
<!-- /ko -->
</div>
<!-- /ko -->


Using $parent.optionParam()[main_id] I can able to access 0 element array. So, in first <p> tag I get Size text as attribute.



Now, I want to read there are sub-element available in Size or Color, If true then, First Array.isArray() should be true and I can able to read sub_color or sub_id field value.



<!-- ko if: Array.isArray(Object.keys($parent.optionParam()[main_id][attribute])) -->


This line always returns an error to me.



How can I read it?



Any help would be appreciated.










share|improve this question
























  • Did you have a look at my answer? Did it solve your query?

    – Vivek Kumar
    yesterday

















2















I want to read the parent of parent elements data. But, I can't able to read it properly.



My Array Screenshot :



enter image description here



My Code :



<!-- ko foreach: data: Object.keys($parent.optionParam()[main_id]), as: 'attribute' -->
<div class="product-custom-option-select">
<p style="font-weight:bold;color:blue" data-bind="text:attribute"></p>
<!-- ko if: Array.isArray(Object.keys($parent.optionParam()[main_id][attribute])) -->
<p style="font-weight:bold;color:green" data-bind="text:attribute"></p>
<!-- ko foreach: $parents[1].optionParam[$parentContext.$index()][attribute] -->
<p class="options-label" data-bind="text:sub_id"></p>
<!-- /ko -->
<!-- /ko -->
<!-- ko if: !Array.isArray($parent.optionParam()[$index][attribute]) -->
<p style="font-weight:bold;color:red" data-bind="text:attribute"></p>
<p class="options-label" data-bind="text:attribute[$parents[1].main_id]"></p>
<!-- /ko -->
</div>
<!-- /ko -->


Using $parent.optionParam()[main_id] I can able to access 0 element array. So, in first <p> tag I get Size text as attribute.



Now, I want to read there are sub-element available in Size or Color, If true then, First Array.isArray() should be true and I can able to read sub_color or sub_id field value.



<!-- ko if: Array.isArray(Object.keys($parent.optionParam()[main_id][attribute])) -->


This line always returns an error to me.



How can I read it?



Any help would be appreciated.










share|improve this question
























  • Did you have a look at my answer? Did it solve your query?

    – Vivek Kumar
    yesterday













2












2








2








I want to read the parent of parent elements data. But, I can't able to read it properly.



My Array Screenshot :



enter image description here



My Code :



<!-- ko foreach: data: Object.keys($parent.optionParam()[main_id]), as: 'attribute' -->
<div class="product-custom-option-select">
<p style="font-weight:bold;color:blue" data-bind="text:attribute"></p>
<!-- ko if: Array.isArray(Object.keys($parent.optionParam()[main_id][attribute])) -->
<p style="font-weight:bold;color:green" data-bind="text:attribute"></p>
<!-- ko foreach: $parents[1].optionParam[$parentContext.$index()][attribute] -->
<p class="options-label" data-bind="text:sub_id"></p>
<!-- /ko -->
<!-- /ko -->
<!-- ko if: !Array.isArray($parent.optionParam()[$index][attribute]) -->
<p style="font-weight:bold;color:red" data-bind="text:attribute"></p>
<p class="options-label" data-bind="text:attribute[$parents[1].main_id]"></p>
<!-- /ko -->
</div>
<!-- /ko -->


Using $parent.optionParam()[main_id] I can able to access 0 element array. So, in first <p> tag I get Size text as attribute.



Now, I want to read there are sub-element available in Size or Color, If true then, First Array.isArray() should be true and I can able to read sub_color or sub_id field value.



<!-- ko if: Array.isArray(Object.keys($parent.optionParam()[main_id][attribute])) -->


This line always returns an error to me.



How can I read it?



Any help would be appreciated.










share|improve this question
















I want to read the parent of parent elements data. But, I can't able to read it properly.



My Array Screenshot :



enter image description here



My Code :



<!-- ko foreach: data: Object.keys($parent.optionParam()[main_id]), as: 'attribute' -->
<div class="product-custom-option-select">
<p style="font-weight:bold;color:blue" data-bind="text:attribute"></p>
<!-- ko if: Array.isArray(Object.keys($parent.optionParam()[main_id][attribute])) -->
<p style="font-weight:bold;color:green" data-bind="text:attribute"></p>
<!-- ko foreach: $parents[1].optionParam[$parentContext.$index()][attribute] -->
<p class="options-label" data-bind="text:sub_id"></p>
<!-- /ko -->
<!-- /ko -->
<!-- ko if: !Array.isArray($parent.optionParam()[$index][attribute]) -->
<p style="font-weight:bold;color:red" data-bind="text:attribute"></p>
<p class="options-label" data-bind="text:attribute[$parents[1].main_id]"></p>
<!-- /ko -->
</div>
<!-- /ko -->


Using $parent.optionParam()[main_id] I can able to access 0 element array. So, in first <p> tag I get Size text as attribute.



Now, I want to read there are sub-element available in Size or Color, If true then, First Array.isArray() should be true and I can able to read sub_color or sub_id field value.



<!-- ko if: Array.isArray(Object.keys($parent.optionParam()[main_id][attribute])) -->


This line always returns an error to me.



How can I read it?



Any help would be appreciated.







magento2 knockoutjs knockout






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited yesterday









Vivek Kumar

2,6122729




2,6122729










asked Jan 28 at 5:31









Emipro Technologies Pvt. Ltd.Emipro Technologies Pvt. Ltd.

2,6421925




2,6421925












  • Did you have a look at my answer? Did it solve your query?

    – Vivek Kumar
    yesterday

















  • Did you have a look at my answer? Did it solve your query?

    – Vivek Kumar
    yesterday
















Did you have a look at my answer? Did it solve your query?

– Vivek Kumar
yesterday





Did you have a look at my answer? Did it solve your query?

– Vivek Kumar
yesterday










1 Answer
1






active

oldest

votes


















0














$parent is essentially an array with all the parents in the current context.



So $parent or $parent[0] refers to immediate parent, $parent[1] will refer to grandparent or parent of parent and so on.






share|improve this answer























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    1 Answer
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    1 Answer
    1






    active

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    active

    oldest

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    active

    oldest

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    0














    $parent is essentially an array with all the parents in the current context.



    So $parent or $parent[0] refers to immediate parent, $parent[1] will refer to grandparent or parent of parent and so on.






    share|improve this answer



























      0














      $parent is essentially an array with all the parents in the current context.



      So $parent or $parent[0] refers to immediate parent, $parent[1] will refer to grandparent or parent of parent and so on.






      share|improve this answer

























        0












        0








        0







        $parent is essentially an array with all the parents in the current context.



        So $parent or $parent[0] refers to immediate parent, $parent[1] will refer to grandparent or parent of parent and so on.






        share|improve this answer













        $parent is essentially an array with all the parents in the current context.



        So $parent or $parent[0] refers to immediate parent, $parent[1] will refer to grandparent or parent of parent and so on.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Apr 9 at 6:51









        Vivek KumarVivek Kumar

        2,6122729




        2,6122729



























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