Rails: Set multiple values for hidden_input_field using Javascript












0















I am using Rails 5 and trying to implement multiple delete functionality. Here is the form:



<%= form_tag destroy_multiple_scan_assets_path, method: :delete do %>
<%= hidden_field_tag :asset_ids, nil, multiple: true %>
<%= submit_tag 'Delete', class: 'btn btn-danger' %>
<% end %>


Now the hidden field value is to be set using javascript based on some checked boxes:



$('input.btn-danger').click(function() {
var selected_asset_elements = $('input.form-check-input:checkbox:checked');
var selected_assets_count = selected_asset_elements.length

if (selected_assets_count == 0) {
alert('Please select an asset to delete.')
return false;
} else if (confirm(`Are you sure, you want to delete ${selected_assets_count} assets?`)) {
selected_asset_elements.each(function () {
// Push $(this).val() in to the hidden filed value
});
} else {
return false
}
});


How do I set hidden field's value so that it's interpreted by rails as:



Parameters: {"asset_ids"=>["1", "2", "3", "4"]} 









share|improve this question



























    0















    I am using Rails 5 and trying to implement multiple delete functionality. Here is the form:



    <%= form_tag destroy_multiple_scan_assets_path, method: :delete do %>
    <%= hidden_field_tag :asset_ids, nil, multiple: true %>
    <%= submit_tag 'Delete', class: 'btn btn-danger' %>
    <% end %>


    Now the hidden field value is to be set using javascript based on some checked boxes:



    $('input.btn-danger').click(function() {
    var selected_asset_elements = $('input.form-check-input:checkbox:checked');
    var selected_assets_count = selected_asset_elements.length

    if (selected_assets_count == 0) {
    alert('Please select an asset to delete.')
    return false;
    } else if (confirm(`Are you sure, you want to delete ${selected_assets_count} assets?`)) {
    selected_asset_elements.each(function () {
    // Push $(this).val() in to the hidden filed value
    });
    } else {
    return false
    }
    });


    How do I set hidden field's value so that it's interpreted by rails as:



    Parameters: {"asset_ids"=>["1", "2", "3", "4"]} 









    share|improve this question

























      0












      0








      0








      I am using Rails 5 and trying to implement multiple delete functionality. Here is the form:



      <%= form_tag destroy_multiple_scan_assets_path, method: :delete do %>
      <%= hidden_field_tag :asset_ids, nil, multiple: true %>
      <%= submit_tag 'Delete', class: 'btn btn-danger' %>
      <% end %>


      Now the hidden field value is to be set using javascript based on some checked boxes:



      $('input.btn-danger').click(function() {
      var selected_asset_elements = $('input.form-check-input:checkbox:checked');
      var selected_assets_count = selected_asset_elements.length

      if (selected_assets_count == 0) {
      alert('Please select an asset to delete.')
      return false;
      } else if (confirm(`Are you sure, you want to delete ${selected_assets_count} assets?`)) {
      selected_asset_elements.each(function () {
      // Push $(this).val() in to the hidden filed value
      });
      } else {
      return false
      }
      });


      How do I set hidden field's value so that it's interpreted by rails as:



      Parameters: {"asset_ids"=>["1", "2", "3", "4"]} 









      share|improve this question














      I am using Rails 5 and trying to implement multiple delete functionality. Here is the form:



      <%= form_tag destroy_multiple_scan_assets_path, method: :delete do %>
      <%= hidden_field_tag :asset_ids, nil, multiple: true %>
      <%= submit_tag 'Delete', class: 'btn btn-danger' %>
      <% end %>


      Now the hidden field value is to be set using javascript based on some checked boxes:



      $('input.btn-danger').click(function() {
      var selected_asset_elements = $('input.form-check-input:checkbox:checked');
      var selected_assets_count = selected_asset_elements.length

      if (selected_assets_count == 0) {
      alert('Please select an asset to delete.')
      return false;
      } else if (confirm(`Are you sure, you want to delete ${selected_assets_count} assets?`)) {
      selected_asset_elements.each(function () {
      // Push $(this).val() in to the hidden filed value
      });
      } else {
      return false
      }
      });


      How do I set hidden field's value so that it's interpreted by rails as:



      Parameters: {"asset_ids"=>["1", "2", "3", "4"]} 






      javascript html ruby-on-rails






      share|improve this question













      share|improve this question











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      share|improve this question










      asked Nov 19 '18 at 21:50









      Rajkaran MishraRajkaran Mishra

      1,3191928




      1,3191928
























          1 Answer
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          You can't do that using a single hidden field, but you can have that result if you add one hidden field with name asset_ids for each id. That's how rails knows it has to parse the params as an array.



          selected_asset_elements.each(function (el) {
          field = document.createElement('INPUT');
          field.type = 'hidden';
          field.name = 'asset_ids';
          field.value = el.id; #something like this
          your_form.append(field);
          });


          By the way, multiple is not a valid option for a hidden field, it just accepts a string value.






          share|improve this answer























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            1 Answer
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            1 Answer
            1






            active

            oldest

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            active

            oldest

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            active

            oldest

            votes









            1














            You can't do that using a single hidden field, but you can have that result if you add one hidden field with name asset_ids for each id. That's how rails knows it has to parse the params as an array.



            selected_asset_elements.each(function (el) {
            field = document.createElement('INPUT');
            field.type = 'hidden';
            field.name = 'asset_ids';
            field.value = el.id; #something like this
            your_form.append(field);
            });


            By the way, multiple is not a valid option for a hidden field, it just accepts a string value.






            share|improve this answer




























              1














              You can't do that using a single hidden field, but you can have that result if you add one hidden field with name asset_ids for each id. That's how rails knows it has to parse the params as an array.



              selected_asset_elements.each(function (el) {
              field = document.createElement('INPUT');
              field.type = 'hidden';
              field.name = 'asset_ids';
              field.value = el.id; #something like this
              your_form.append(field);
              });


              By the way, multiple is not a valid option for a hidden field, it just accepts a string value.






              share|improve this answer


























                1












                1








                1







                You can't do that using a single hidden field, but you can have that result if you add one hidden field with name asset_ids for each id. That's how rails knows it has to parse the params as an array.



                selected_asset_elements.each(function (el) {
                field = document.createElement('INPUT');
                field.type = 'hidden';
                field.name = 'asset_ids';
                field.value = el.id; #something like this
                your_form.append(field);
                });


                By the way, multiple is not a valid option for a hidden field, it just accepts a string value.






                share|improve this answer













                You can't do that using a single hidden field, but you can have that result if you add one hidden field with name asset_ids for each id. That's how rails knows it has to parse the params as an array.



                selected_asset_elements.each(function (el) {
                field = document.createElement('INPUT');
                field.type = 'hidden';
                field.name = 'asset_ids';
                field.value = el.id; #something like this
                your_form.append(field);
                });


                By the way, multiple is not a valid option for a hidden field, it just accepts a string value.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 20 '18 at 3:27









                arieljuodarieljuod

                6,87111221




                6,87111221
































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