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Handle database with escapable identifiers in name #717

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merged 3 commits into from May 9, 2024

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jharder
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@jharder jharder commented May 7, 2024

In the case where a MySQL database has a hyphen in it, the updated migrations in 4.3.0 cause the migration to fail with a syntax error. The previous Phinx-backed migrations did not encounter this.

Looking into the code, there were only two locations that did not escape the database name, setConnection() and createDatabase(), which have been updated to use the quoteTableName() method. Additionally, there were a couple other instances where the database name was being manually quoted with backticks, so I refactored those to use the quoteTableName() method as well for consistency.

Tests have been updated to explicitly create and drop a database with the configured name plus a hyphenated suffix component. All tests continue to pass. The dropDatabase() method which runs before createDatabase() in the test setup had previously had quoting hard-coded into the query, which explains why the original syntax error did not occur at that point. After refactoring, the dropDatabase() method continued to work without regression.

In MySQL a hyphen (-) in a database name is not prohibited but requires the name to be escaped with backtick (`).

The methods setConnection() and createDatabase() passed the database name unaltered which caused migrations to fail for systems with hyphens in the database name.

This change wraps the database name in quoteTableName(), and also identified a couple other cases where the name should be or was inconsistently quoted.
Adding a test case to cover databases with hyphen in its name.
Looks like the TABLE_SCHEMA was being quoted already, so this double-quoted and caused some tests to fail.
@dereuromark dereuromark added the bug label May 7, 2024
@markstory markstory merged commit 830e480 into cakephp:4.x May 9, 2024
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@markstory markstory added this to the 4.x (CakePHP 5) milestone May 9, 2024
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Thank you 🎉

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3 participants