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Document the constraints we test against 

Signed-off-by: Joas Schilling <coding@schilljs.com>
This commit is contained in:
Joas Schilling 2020-11-11 14:33:47 +01:00
parent c98cab137c
commit 133a6f4fe4
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1 changed files with 17 additions and 0 deletions
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17
lib/private/DB/MigrationService.php
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@ -551,6 +551,23 @@ class MigrationService {
$this->markAsExecuted($version);
}
/**
* Naming constraints:
* - Tables names must be 30 chars or shorter (27 + oc_ prefix)
* - Column names must be 30 chars or shorter
* - Index names must be 30 chars or shorter
* - Sequence names must be 30 chars or shorter
* - Primary key names must be set or the table name 23 chars or shorter
*
* Data constraints:
* - Columns with "NotNull" can not have empty string as default value
* - Columns with "NotNull" can not have number 0 as default value
*
* @param Schema $sourceSchema
* @param Schema $targetSchema
* @param int $prefixLength
* @throws \Doctrine\DBAL\Exception
*/
public function ensureOracleIdentifierLengthLimit(Schema $sourceSchema, Schema $targetSchema, int $prefixLength) {
$sequences = $targetSchema->getSequences();