[RedirectBundle] Automatically generate redirects

[JZuidema]

Q	A
Bug fix?	no
New feature?	yes
BC breaks?	no
Deprecations?	no
Fixed tickets

When the slug of a page is changed, if you visit the old url it will result in a 404. This feature will allow Kunstmaan to automatically generate a redirect for each page that implements the AutoRedirectInterface

When a slug is changed, the subscriber performs these steps:

• Find all redirects with origin the newly created url. Delete these redirects. (because it is going to be an actual url, you don't need to have an existing redirect for it
• Find all redirects with target the old url. Update the target to the newly created url. (so you don't have to chain redirects going from A to B to C to D, but instead going from A to D and from B to D)
• Create a new redirect with origin the old url and target the newly created url.

Here is an example:

This is the current page:

We rename the page to Page B and change the slug accordingly:

We now have one automatically generated redirect:

We rename the page to Page C and change the slug accordingly:

We now have two automatically generated redirects. Both redirects now target /page-c (instead of page-a redirecting to page-b etc)

We regret all the name changes, and rename the page back to Page A and change the slug accordingly:

We now still have to redirects where page-b and page-c both redirect back to page-a

[ProfessorKuma]

Hi @, your PR needs some changes

• This PR seems to need a milestone of a minor release.

[ProfessorKuma]

Hi @, your PR passed all our requirements.

Thank you for contributing!

[acrobat]

@JZuidema I'm thinking if we need the marker interface at all, would it make sense to have a configuration option in the node bundle to activitate auto redirects for all cms pages?

[acrobat]

I temporary removed the milestone as this needs some work. I've recently also implemented this in project and one thing missing here is the implementation of the multidomain setup. If you have multiple domains these need be added only for the specific domain.

So let's see in 6.x to implement this feature, I will see what I can add from my custom implementation!