- Remove extraneous parentheses around empty() calls
- Remove duplicate calls to intval(), count() or strlen() after empty()
- Replace ternary operators outputting binary value with empty() return value
- Rewrite defaults() without x()
```
2018-11-21T08:31:28Z@e3393hprfvfqnblturqp56rjnp [Info]:DBA.php:557:p
DB Error 3065: Expression #1 of ORDER BY clause is not in SELECT list,
references column 'friendica.item.created' which is not in SELECT list;
this is incompatible with DISTINCT
q, profile_content, update_profile_content,
LegacyModule::runModuleFunction, LegacyModule::content, call_user_func,
App::runFrontend
SELECT DISTINCT(`parent-uri`) AS `uri` FROM `item` INNER JOIN `contact`
ON `contact`.`id` = `item`.`contact-id` AND NOT `contact`.`blocked` AND
NOT `contact`.`pending` WHERE `item`.`uid` = 1 AND `item`.`visible` AND
(NOT `item`.`deleted` OR `item`.`gravity` = 3) AND NOT
`item`.`moderated` AND `item`.`wall` AND `item`.`unseen` ORDER BY
`item`.`created` DESC
```
* Rewrites:
- moved PAGE_* to Friendica\Model\Profile class
* Fixed more rewrites from plain (global namespace) PAGE_* to Friendica\Models\Profile class
* CR request:
- moved all PAGE_* constants to Friendica\Model\Contact class
- fixed all references of both classes
* CR request:
- moved ACCOUNT_TYPE_* constants from boot.php to Contact::ACCOUNT_TYPE_*
* Just copy-pasted this code from boot.php, needs to be changed to `const ACCOUNT_TYPE_FOO = x;`
* Ops, melting brain cells here ... :-/
* Some more warnings removed
* Even more warnings ...
* Will it ever end? ;-)
* Avoid warning in dbstructure
* Origin and OStatus ...
* There are more warnings solved ... yeah!
* And again ...
* We are not done yet
* And more ...
* And some new places ...
* And more in the feeds
* Avoid some more
* And some backend stuff
* Notifications cleared
* Some more stuff
* and again ...
* It's getting fewer ...
* Some warnings had been hidden in the notifications
* Fix the fix
* And another missing one ...
* We need the owner here, not the user
* Forgotten user
* And more ...
* And some more warnings disappeared ...
* Some more frontend warnings
* Some backend warnings removed
* Fixed sidebar for "vier"
* And more ...
* Some more ...
* And something for "remote self"
* Am I stuck in an endless loop?
* Fix: Clear tag and file field on update
* Preset page content
