bitPickups/friendica_2019-12_sharedHosting_hotFix
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Add Update documentation page

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Hypolite Petovan 2018-01-17 15:30:34 -05:00
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doc/Home.md
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@ -27,6 +27,7 @@ Friendica Documentation and Resources
**Admin Manual**
* [Install](help/Install)
* [Update](help/Update)
* [Settings & Admin Panel](help/Settings)
* [Installing Connectors (Twitter/GNU Social)](help/Installing-Connectors)
* [Install an ejabberd server (XMPP chat) with synchronized credentials](help/install-ejabberd)

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doc/Install.md
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@ -118,24 +118,6 @@ If it is not possible to set up a cron job then please activate the "frontend wo
Once you have installed Friendica and created an admin account as part of the process, you can access the admin panel of your installation and do most of the server wide configuration from there
Updating your installation with git
---
You can get the latest changes at any time with
cd mywebsite
git pull
util/composer.phar install
The default branch to use it the ``master`` branch, which is the stable version of Friendica.
If you want to use and test bleeding edge code please checkout the ``develop`` branch.
The new features and fixes will be merged from ``develop`` into ``master`` when they are stable approx four times a year.
The addon tree has to be updated separately like so:
cd mywebsite/addon
git pull
###Set up a backup plan
Bad things will happen.
Let there be a hardware failure, a corrupted database or whatever you can think of.

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doc/Update.md Normal file
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@ -0,0 +1,72 @@
Updating Friendica
===============
* [Home](help)
## Using a Friendica archive
If you installed Friendica in the ``path/to/friendica`` folder:
1. Unpack the new Friendica archive in ``path/to/friendica_new``.
2. Copy ``.htconfig.php``, ``photo/`` and ``proxy/`` from ``path/to/friendica`` to ``path/to/friendica_new``.
3. Rename the ``path/to/friendica`` folder to ``path/to/friendica_old``.
4. Rename the ``path/to/friendica_new`` folder to ``path/to/friendica``.
5. Check your site. Note: it may go into maintenance mode to update the database schema.
6. If everything works, just delete the ``path/to/friendica_old`` folder.
To update Addons from an archive, simply delete the ``path/to/friendica/addon`` and replace it with the provided archive.
## Using Git
You can get the latest changes at any time with
cd path/to/friendica
git pull
util/composer.phar install
The addon tree has to be updated separately like so:
cd path/to/friendica/addon
git pull
For both repositories:
The default branch to use is the ``master`` branch, which is the stable version of Friendica.
It is updated about four times a year on a fixed schedule.
If you want to use and test bleeding edge code please checkout the ``develop`` branch.
The new features and fixes will be merged from ``develop`` into ``master`` after a release candidate period before each release.
Warning: The ``develop`` branch is unstable, and breaks on average once a month for at most 24 hours until a patch is submitted and merged.
Be sure to pull frequently if you choose the ``develop`` branch.
### Considerations before upgrading Friendica
#### MySQL >= 5.7.4
Starting from MySQL version 5.7.4, the IGNORE keyword in ALTER TABLE statements is ignored.
This prevents automatic table deduplication if a UNIQUE index is added to a Friendica table's structure.
If a DB update fails for you while creating a UNIQUE index, make sure to manually deduplicate the table before trying the update again.
#### Manual deduplication
There are two main ways of doing it, either by manually removing the duplicates or by recreating the table.
Manually removing the duplicates is usually faster if they're not too numerous.
To manually remove the duplicates, you need to know the UNIQUE index columns available in `database.sql`.
```SQL
SELECT GROUP_CONCAT(id), <index columns>, count(*) as count FROM users
GROUP BY <index columns> HAVING count >= 2;
/* delete or merge duplicate from above query */;
```
If there are too many rows to handle manually, you can create a new table with the same structure as the table with duplicates and insert the existing content with INSERT IGNORE.
To recreate the table you need to know the table structure available in `database.sql`.
```SQL
CREATE TABLE <table_name>_new <rest of the CREATE TABLE>;
INSERT IGNORE INTO <table_name>_new SELECT * FROM <table_name>;
DROP TABLE <table_name>;
RENAME TABLE <table_name>_new TO <table_name>;
```
This method is slower overall, but it is better suited for large numbers of duplicates.