How to handle saving for a custom input field on the backend product view's «Image Detail» popup?

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1

Screenshot 2016-03-29 22.36.07.png1192×633 167 KB

How to save data from custom field. In above image i already create some custom field. After fill and close dialog not save value. I have no idea why.
How to fix it

2

Please publish the HTML markup for your custom field.

3

template same in vendor\magento\module-product-video\view\adminhtml\templates\helper\gallery.phtml
I just added more fields to dialog-template associated with image

<div class="field">
    <label class="label"><?php echo __('Item Title') ?></label>
    <div class="control">
        <input type="text" name="banner[media_gallery][images][<%- data.file_id %>][item_title]"  />
    </div>
</div>

<div class="field field-item-alt">
    <label class="label"><?php echo __('Item Image Alt') ?></label>
    <div class="control">
        <input type="text" name="banner[media_gallery][images][<%- data.file_id %>][item_alt]" />
    </div>
</div>

<div class="field field-item-url">
    <label class="label"><?php echo __('Item Url') ?></label>
    <div class="control">
        <input type="text" name="banner[media_gallery][images][<%- data.file_id %>][item_url]" />
    </div>
</div>

<div class="field field-item-short-description">
    <label class="label"><?php echo __('Item Short Description') ?></label>
    <div class="control">
         <textarea rows="3" name="banner[media_gallery][images][<%- data.file_id %>][item_short_description]"></textarea>
    </div>
</div>

<div class="field field-item-status">
    <label class="label"><?php echo __('Item Status') ?></label>
    <div class="control">
        <select class="item_select select" name="banner[media_gallery][images][<%- data.file_id %>][item_status]">
            <option value="1"><?php echo __('Enable') ?></option>
            <option value="0"><?php echo __('Disable') ?></option>
        </select>
    </div>
</div>

How to save data all field above after fill all input

4

How is this markup related to the screenshot above?

5

Current dialog with custom input field

Screenshot 2016-03-30 00.55.24.png1159×637 912 KB

Could you tell me how to get or save all input above?

6

Is the server part successfully receive the custom inputs’ values?

7

No. Magento not save data that i fill in. How it can save it. Because after i close dialog. Values were gone.
My archievement is going to want save data i just put in input. This dialog is a part of form. I need data for save form after

8

The form you are trying to modify is not a plain HTML form, it is a text/x-magento-template:

So you should place your input fields inside the same text/x-magento-template.

9

Thanks, i will try it again

10

<%- data.item_short_description %> this custom var of mine not work
Where in code i can find all variables? Magento use this var <%- data.label %> <%- data.url %> in dialog

11

Please publish the exact link to the problem Magento 2 code block in the GitHub.

12

Anyone found the solution? I have post question on stack-exchange.
https://magento.stackexchange.com/questions/264398/magento-2-admin-product-image-detail-custom-textfield-value-gone-after-dialog-cl

13

Also have this situation, i haven’t idea how can i save value and in which table if i add some new field in this popup