ColumnControl searchList doesn't see Unicode

Storms_LV · July 5

DataTables 2.3.7,
ColumnControl 1.2.1,
Bootstrap 5.3.8

When searchList collects options from a column containing localized text (UTF8), it converts all localized characters to the corresponding Latin letter. But search is running correctly.
There is no such problem if the options are passed from the server side with ajax.
I tried different columns.type options - 'string-utf8', 'html-utf8' - nothing changes.

Here is an example of what it looks like:

Here is an example of ajax data:

allan · July 6

Can you give me a link to a test case showing the issue please? I've just tried putting together a little example with the current releases and it seems to work without issue.

Allan

Storms_LV · July 8

I will try to investigate the problem in more depth, including using the example you sent. And I found the problem.
I use several global parameters using the "default" property. In particular, the contents of the searchList are often modified using the orthogonal property "filter". Like this:

columns: [
   {
      data: 'name',
      columnControl: ['order', ['searchList']],
      render: function (data, type, row, meta) {
         if (type == 'filter') return data;
         return data+'<span>Some additional stuff</span>';
      }
   },
   ...

If I set the following default parameter, then the utf8 characters disappear:

DataTable.ColumnControl.content.searchList.defaults.orthogonal = 'filter';

If I specify the same parameter as {extend: 'searchList', orthogonal: 'filter'} in every column definition where I need it, then this problem does not exist.
The number of tables in the application is several dozen, so the default parameters make the work much easier.

P.S. - Data is received using ajax. Unfortunately, access to the existing code is not possible.

allan · July 8

If I set the following default parameter, then the utf8 characters disappear:

I would expect the result you are seeing if you set the SearchList orthogonal data point to be filter. The reason for that is that the filtering will "normalize" the text, allowing the end user to search either with or without diacritics.

If you need to add additional stuff for the display in the table, but don't want that in the SearchList, I'd suggest introduce a new orthogonal data type:

DataTable.ColumnControl.content.searchList.defaults.orthogonal = 'searchList';

and:

columns: [
   {
      data: 'name',
      columnControl: ['order', ['searchList']],
      render: function (data, type, row, meta) {
         if (type == 'filter' || type === 'searchList') return data;
         return data+'<span>Some additional stuff</span>';
      }
   },
   ...

DataTables does the normalization on the filter data type internally. You can disable that using DataTable.util.diacritics() if you prefer that option.

Allan

Storms_LV · July 9

Yes, .orthogonal = 'searchList' helped!
Thanks for the solution!

I have slightly upgraded dataTables.columnControl.js v.1.2.1 to make it possible to search with searchList if a row column contains multiple values (array).
Currently only works if searchList values are specified manually or received in a common data array from ajax.

Where is the best place to submit this as a suggestion for an extension improvement?

allan · July 9

Array support is something that is on my "todo" list . There are two ways it can be done - matching the full array, or taking each entry and then doing a partial match from the columns. My intention would be the latter way.

The git repo is here if you are interested in submitting a PR.

Allan

Storms_LV · July 10

Hello again! There is a next problem...

DataTable.ColumnControl.content.searchList.defaults.orthogonal = 'searchList';

columns: [
   {
      data: 'name',
      columnControl: ['order', ['searchList']],
      render: function (data, type, row, meta) {
         console.log(type);
         if (type == 'searchList') return data;
         return data+'<span>Some additional stuff</span>';
      }
   },
   ...

As a result, I see that only the type, filter, display and sort types appear in the render function. Type searchList does not appear. The result is searching for data+<span>Some additional stuff</span> instead of data.

It seems that the function accepts only types specified in the documentation. Orthogonal type is not taken into account.
At the same time, if orthogonal specifies anything other than filter, searchList displays UTF8.

The same applies to searchDropdown.

kthorngren · July 10

I updated Allan's test case with your code snippets and it seems to work:
https://live.datatables.net/qisomuka/3/edit

Can you provide a test case to show the issue so we can help debug?
https://datatables.net/manual/tech-notes/10#How-to-provide-a-test-case

Make sure you execute this:

DataTable.ColumnControl.content.searchList.defaults.orthogonal = 'searchList';

before initializing Datatables.

Kevin

ColumnControl searchList doesn't see Unicode

ColumnControl searchList doesn't see Unicode

Answers