Editing Magento (section)

==Operations==
===Commands===
 <MAGENTO_INSTALL_DIR>\bin\php magento cache:flush
 <MAGENTO_INSTALL_DIR>\bin\php magento cache:clean

====Module Installation====
 copy to <MAGENTO_INSTALL_DIR>\app\code\
 <MAGENTO_INSTALL_DIR>\bin\php magento module:status // first time for a new module module is listed as disabled
 <MAGENTO_INSTALL_DIR>\bin\php magento module:enable <MODULE_NAME> // adds module to /app/etc/config.php
 <MAGENTO_INSTALL_DIR>\bin\php magento setup:upgrade // see below

====Upgrade Module====
 <MAGENTO_INSTALL_DIR>\bin\php magento setup:upgrade // triggers setup scripts (if the module has one) of all modules that needs setup, 
                                                     // and updates version info in table setup_module
 <MAGENTO_INSTALL_DIR>\bin\php magento setup:db-schema:upgrade
 <MAGENTO_INSTALL_DIR>\bin\php magento setup:db-data:upgrade

In Magento 2 upgrade is defined by the following rule (see [https://devdocs.magento.com/guides/v2.2/extension-dev-guide/prepare/lifecycle.html here]):
 IF (NO 'schema_version' IN table 'setup_module') THEN InstallSchema
 ELSE UpgradeSchema
 ENDIF
 Recurring // Recurring Schema
 IF (NO 'data_version' IN table 'module_setup) THEN InstallData
 ELSEIF (version outdated) THEN UpgradeData
 ENDIF
 RecurringData

In order to manually upgrade a module:
 delete row from DB table setup_module
 php magento setup:upgrade

====Uninstall Module====
 <MAGENTO_INSTALL_DIR>\bin\php magento magento module:uninstall // only works for modules defined by a composer package
Detailled steps to uninstall manually are described [https://www.scommerce-mage.com/blog/magento2-uninstall-module.html here]

 <MAGENTO_INSTALL_DIR>\bin\php magento module:disable <MODULE_NAME> // sets module in /app/etc/config.php to 0
 <MAGENTO_INSTALL_DIR>\bin\php magento setup:upgrade

====DB Logging====
 <MAGENTO_INSTALL_DIR>\bin\php magento dev:query-log:enable  // writes all queries to /var/debug/db.log
 <MAGENTO_INSTALL_DIR>\bin\php magento dev:query-log:disable

====Magento Mode====

 <MAGENTO_INSTALL_DIR>\bin\php magento deploy:mode:show
 <MAGENTO_INSTALL_DIR>\bin\php magento deploy:mode:set developer

====Indexing====
 php magento indexer:reindex // e.g. needed to show new customers in the admin customer list

====Administration====
 php bin/magento admin:user:create [<PARAMETER>|--help] // will ask for all needed parameters

===Configuration===
====Admin Session Timeout====
* Stores->Settings->Configuration->Advanced->Admin->Security->Admin Session Lifetime

====Admin URL====
* lookup /app/etc/env.php <code>backend =></code>

====Cache and Index Management====
* System -> Tools -> Cache Management

====Payments====
* payments = zahlungsarten
* Stores->Configuration->Sales->Payment Methods
** banktransfer := Bank Transfer Payment (Überweisung, Vorkasse)
** cashondelivery := Cash on Delivery Payment (Nachnahme)
** checkmo := Check / Money Order (Kauf per Rechnung)
** purchaseorder := Purchase Order (Bestellung)

===DB Dump===
 C:\Uwes\Programme\xampp7.0.31\mysql\bin>mysqldump.exe --user=root m2_1 >C:\temp\m2_1.txt

===Error Logging===
* decomment in \app\bootstrap.php
 ini_set('display_errors', 1);

===Debugging===
* see [https://www.oscprofessionals.com/magento-commerce/debugging-tricks-tools-magento-2/ here] for some debugging strategies