Magento 2 How to display placeholder image to image preview backend UI component form












0















In my custom module i have custom UI component form and i add file upload filed to this form.



Form is working fine while Add or Edit, when upload file image preview is display,but i want to display default image preview once file is not uploaded and display a placeholder image to image preview section.



Below is image upload code.



<field name="image">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="dataType" xsi:type="string">string</item>
<item name="source" xsi:type="string">image</item>
<item name="label" xsi:type="string" translate="true">Image</item>
<item name="visible" xsi:type="boolean">true</item>
<item name="formElement" xsi:type="string">fileUploader</item>
<item name="placeholderType" xsi:type="document">document</item>
<item name="elementTmpl" xsi:type="string">ui/form/element/uploader/uploader</item>
<item name="previewTmpl" xsi:type="string">Namespace_Modulename/image-preview</item>
<item name="validation" xsi:type="array">
<item name="required-entry" xsi:type="boolean">true</item>
</item>
<item name="uploaderConfig" xsi:type="array">
<item name="url" xsi:type="url" path="managelabels/productlabel/upload"/>
</item>
</item>
</argument>
</field>


After search a lot and found something to display placeholder image this link. in this documentation they use placeholderType argument to Defines the preview type.



But i have no idea to how to implement this argument to my custom form.



Any help would be appreciated! Thanks.









share



























    0















    In my custom module i have custom UI component form and i add file upload filed to this form.



    Form is working fine while Add or Edit, when upload file image preview is display,but i want to display default image preview once file is not uploaded and display a placeholder image to image preview section.



    Below is image upload code.



    <field name="image">
    <argument name="data" xsi:type="array">
    <item name="config" xsi:type="array">
    <item name="dataType" xsi:type="string">string</item>
    <item name="source" xsi:type="string">image</item>
    <item name="label" xsi:type="string" translate="true">Image</item>
    <item name="visible" xsi:type="boolean">true</item>
    <item name="formElement" xsi:type="string">fileUploader</item>
    <item name="placeholderType" xsi:type="document">document</item>
    <item name="elementTmpl" xsi:type="string">ui/form/element/uploader/uploader</item>
    <item name="previewTmpl" xsi:type="string">Namespace_Modulename/image-preview</item>
    <item name="validation" xsi:type="array">
    <item name="required-entry" xsi:type="boolean">true</item>
    </item>
    <item name="uploaderConfig" xsi:type="array">
    <item name="url" xsi:type="url" path="managelabels/productlabel/upload"/>
    </item>
    </item>
    </argument>
    </field>


    After search a lot and found something to display placeholder image this link. in this documentation they use placeholderType argument to Defines the preview type.



    But i have no idea to how to implement this argument to my custom form.



    Any help would be appreciated! Thanks.









    share

























      0












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      0








      In my custom module i have custom UI component form and i add file upload filed to this form.



      Form is working fine while Add or Edit, when upload file image preview is display,but i want to display default image preview once file is not uploaded and display a placeholder image to image preview section.



      Below is image upload code.



      <field name="image">
      <argument name="data" xsi:type="array">
      <item name="config" xsi:type="array">
      <item name="dataType" xsi:type="string">string</item>
      <item name="source" xsi:type="string">image</item>
      <item name="label" xsi:type="string" translate="true">Image</item>
      <item name="visible" xsi:type="boolean">true</item>
      <item name="formElement" xsi:type="string">fileUploader</item>
      <item name="placeholderType" xsi:type="document">document</item>
      <item name="elementTmpl" xsi:type="string">ui/form/element/uploader/uploader</item>
      <item name="previewTmpl" xsi:type="string">Namespace_Modulename/image-preview</item>
      <item name="validation" xsi:type="array">
      <item name="required-entry" xsi:type="boolean">true</item>
      </item>
      <item name="uploaderConfig" xsi:type="array">
      <item name="url" xsi:type="url" path="managelabels/productlabel/upload"/>
      </item>
      </item>
      </argument>
      </field>


      After search a lot and found something to display placeholder image this link. in this documentation they use placeholderType argument to Defines the preview type.



      But i have no idea to how to implement this argument to my custom form.



      Any help would be appreciated! Thanks.









      share














      In my custom module i have custom UI component form and i add file upload filed to this form.



      Form is working fine while Add or Edit, when upload file image preview is display,but i want to display default image preview once file is not uploaded and display a placeholder image to image preview section.



      Below is image upload code.



      <field name="image">
      <argument name="data" xsi:type="array">
      <item name="config" xsi:type="array">
      <item name="dataType" xsi:type="string">string</item>
      <item name="source" xsi:type="string">image</item>
      <item name="label" xsi:type="string" translate="true">Image</item>
      <item name="visible" xsi:type="boolean">true</item>
      <item name="formElement" xsi:type="string">fileUploader</item>
      <item name="placeholderType" xsi:type="document">document</item>
      <item name="elementTmpl" xsi:type="string">ui/form/element/uploader/uploader</item>
      <item name="previewTmpl" xsi:type="string">Namespace_Modulename/image-preview</item>
      <item name="validation" xsi:type="array">
      <item name="required-entry" xsi:type="boolean">true</item>
      </item>
      <item name="uploaderConfig" xsi:type="array">
      <item name="url" xsi:type="url" path="managelabels/productlabel/upload"/>
      </item>
      </item>
      </argument>
      </field>


      After search a lot and found something to display placeholder image this link. in this documentation they use placeholderType argument to Defines the preview type.



      But i have no idea to how to implement this argument to my custom form.



      Any help would be appreciated! Thanks.







      uicomponent image-upload magento2.3 ui-form image-preview





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      asked 3 mins ago









      Chirag PatelChirag Patel

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