Show blank_slate when all records filtered out

[linesarefuzzy]

The blank_slate feature only works when there are no records in the database. I would like it to also show the blank slate when no records are returned due to filters—at least when using detached filters. I realize this behavior is documented in the readme, but I don't see its value. If this is considered a feature, perhaps it could be an option.

[leikind]

i am currently not working on this plugin. But this should be a simple feature/configuration. Look at line

   if rendering.blank_slate_handler && grid.resultset.size == 0 && !grid.filtering_on?

in wice_grid_view_helpers.rb

Running or not running the last check will do the trick.

I will accept a pull request.

[linesarefuzzy]

Thanks for the tip! I actually found that on my own and tried disabling the last boolean. It does show the blank slate instead of the grid, but it also makes all the filters disappear. I tried to investigate further into the filter generation, but I wasn't able to figure it out.

As a workaround, is it possible to determine from the grid instance whether the filtered result set is empty? I tried empty?, size, count, do_count, resultset.size, resultset.count, even resultset_without_paging_with_user_filters—all return > 0 even when the table is empty.

[rockorequin]

If there are no records, you could display the grid title row and filters as well as the text "No records found" by looking for this in wice_grid_view_helpers.rb#grid_html:

grid.output_buffer << '</tfoot><tbody>'

and inserting this line immediately after it:

grid.output_buffer << "<tr><td colspan='#{rendering.number_of_columns + (no_rightmost_column ? 0 : 1)}'>No records found</td></tr>" if grid.resultset.length == 0