Alchemy suggest can't open api_key.txt, fopen confusion? Use a configuration page for API keys.

I was trying to get Alchemy working, and having some serious trouble. There is no documentation for where to place the API key, so it was only after I decided to look at the code that I noticed the README inside of the /modules folder indicating that I should paste the key into the api_key.txt file. However, it continued to state that "AlchemyAPI module needs key to work. See README." in the tagging widget.

After some fiddling about with the code, I decided to try changing line 9.

    @$alchemyObj->loadAPIKey( drupal_get_path('module', 'Tagging')."\\modules\\tagging_alchemy_suggest\\api_key.txt");

To

    @$alchemyObj->loadAPIKey( drupal_get_path('module', 'Tagging')."/modules/tagging_alchemy_suggest/api_key.txt");

And VOILA it started working!

Now, I'm on a linux server, and don't know exactly why this solved the problem, but could it be that drupal_get_path was returning forward slashes, and the tagging module was concatenating backslashes onto it?

Regardless, I recommend a configuration page and variable_get(). The lack of clear documentation and clumsiness of using a file to load the API key really does little to help simple users like myself.

Checking the AlchemyAPI files, the 'loadAPIKey()' function can be replaced by 'setAPIKey()' like so once there is a config page for entering API keys into the variable table.

6-10

function tagging_alchemy_suggest_tagging_suggestions($vid, $node) {
  $alchemyObj = new AlchemyAPI();
  try {
    @$alchemyObj->setAPIKey( variable_get('tagging_alchemy_suggest_apikey', " "); //Use a single space for the default because if they keylength is less than 5 the function setAPIKey() throws an exception, "Error setting API key."
  }
//...