The argument order in module_load_incude is frustratingly stupid.
module_load_include('inc', 'node', 'node.admin');
It requires devs (even those of us who use this thing all the time) to continue to look up the order because it's so non-intuitive. Ideally, this function would not be specific to modules, and would allow you to specify the entire file name as a single argument. something like...
backdrop_load_include('module', 'node.admin.inc');
or
backdrop_include_file('theme', 'basis', 'template.php');
We could even go one step further and always limit the search for .tpl.php files to the modulename/templates or themename/templates directory, .css files to modulename/css or themename/css and .js files to modulename/js or themename/js. This pattern can be extended to anything else we decide to neatly place into subdirectories (.test files in modulename/tests, etc).
This issue will depend on the addition of the BC layer, and the dupal.inc file.
Recent comments
Glad it works for you! Regarding selecting options, I've just tested the Views Autocomplete Filters module and got it working after I had a look at the README and made sure to use the same...
Can't filter content in a View
You are right, that was it... Now my problem is I would like users being able to select from pre-established options, like a drop down or maybe an autocomplete. For that I would the Autocomplete...
Can't filter content in a View
Here goes the screenshot for the exposed filter config I will try the module you are telling me about. thanks again!
Can't filter content in a View