[4.0] Enable utf8mb4 in database connections

[wilsonge]

Pull Request for Issue #24697

Enables UTF8MB4 support in the database drivers when available

[infograf768]

Does not solve the issue here.

[brianteeman]

:) same error for me after applying the patch and trying to create an article with an emoji as the title
Save failed with the following error: Incorrect string value: '\xF0\x9F\x8E\x81\xE2\x9C...' for column 'title' at row 1

[brianteeman]

correction:
I still cannot insert an emoji in the title of a new article
But I can now insert an emoji in the title of an existing article

The difference between the two cases is either due to the INSERT vs UPDATE in the sql
OR it is failing at the create alias stage

[mbabker]

It might not fix that issue, but it does in general fix the configuration issue of utf8mb4 needing to be explicitly enabled in the driver config. So, this should still be merged but further troubleshooting of #24697 might be needed.

[wilsonge]

OK So at minimum I'd hope that the Database Connection Collation screenshot in the original PR is switched to be utf8mb4. Can you guys confirm?

[chetanmadaan]

@wilsonge
The Database Connection Collation still reads utf8_general_ci, before and after the patch with both (Mysqli and Mysql (PDO), DB drivers.

[wilsonge]

Ugh I made a really stupid bug in the code. Can you try again please

[chetanmadaan]

Checking now...

[chetanmadaan]

Awesome.

System config now reads collect collation for both DB Drivers and I am able to save Emoji's as well.

Database Connection Collation |
-- | --
utf8mb4_general_ci

[chetanmadaan]

These fix the issue.

[wilsonge]

This passed on drone but it hasn't apparently sent the response back to github http://ci.joomla.org/joomla/joomla-cms/17341 :(

[wilsonge]

Merging with the good test and @mbabker 's review

[brianteeman]

Just confirming it worked for me too

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/24704.}

[chetanmadaan]

Further confirmed that the emoji's work on new and existing articles and in title and article description as well.

Thank you @wilsonge for the promptness in getting this done.

[wilsonge]

No worries. Thanks for reporting it!