Pull Request for Issue # 29 in the Guided Tour project : joomla-projects/guided-tours#29

Summary of Changes

Adding a new field ('url_type') to choose typical url or enter a cutom one.
Adding check validation on url on the 'option' url param to verify the component used exists or not.

Testing Instructions

• create a new tour and enter a custom url that does'nt exists, you will show an error message when saving
• create a new tour and enter a custom url that have an 'option=' url param that does'nt exists, you will show an error message when saving
• create a new tour and enter a custom url that exists, you can save it and execute this new Guided tour
• update an existing guided tour and change the 'url_type' field selected value to 'Custom' or to an existing component choice

Actual result BEFORE applying this Pull Request

The URL field is a simple url with no check on URL validation.

Expected result AFTER applying this Pull Request

You will have a list of existing url and a coice for a cutom url.
In Custom mode, you need to enter an url with an existing 'option=' that correspond to an installed component.

The new Url Type field (with a custom URL selection) :

A partial view of the the pre-listed items of URL type :

Link to documentations

Please select:

• Documentation link for guide.joomla.org:

• No documentation changes for guide.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed