Merge pull request #9179 from kenjis/improve-migration-file-names

docs: improve "Migration File Names"

Author: kenjis

user_guide_src/source/dbmgmt/migration.rst

@@ -22,19 +22,28 @@ include migrations from all namespaces.
 Migration File Names
 ********************
 
-Each Migration is run in numeric order forward or backwards depending on the
-method taken. Each migration is numbered using the timestamp when the migration
-was created, in **YYYY-MM-DD-HHIISS** format (e.g., **2012-10-31-100537**). This
-helps prevent numbering conflicts when working in a team environment.
+A migration file name is made up of a timestamp prefix, an underscore (``_``),
+and a descriptive name (classname).
+
+* 2024-09-08-013653_AddBlogTable.php
+
+Each migration is numbered using the timestamp (**2024-09-08-013653**) when the
+migration was created, in **YYYY-MM-DD-HHIISS** format.
 
-Prefix your migration files with the migration number followed by an underscore
-and a descriptive name for the migration. The year, month, and date can be separated
-from each other by dashes, underscores, or not at all. For example:
+The descriptive name (**AddBlogTable**) for the migration is a classname in PHP.
+So you must name a valid classname.
+
+The year, month, day, and time in a prefix can be separated from each other by
+dashes (``-``), underscores (``_``), or not at all. For example:
 
 * 2012-10-31-100538_AlterBlogTrackViews.php
 * 2012_10_31_100539_AlterBlogAddTranslations.php
 * 20121031100537_AddBlog.php
 
+Each Migration is run in numeric order forward or backwards depending on the
+method taken. This helps prevent numbering conflicts when working in a team
+environment.
+
 ******************
 Create a Migration
 ******************
@@ -49,7 +58,7 @@ The database connection and the database Forge class are both available to you t
 ``$this->db`` and ``$this->forge``, respectively.
 
 Alternatively, you can use a command-line call to generate a skeleton migration file.
-See **make:migration** in :ref:`command-line-tools` for more details.
+See `make:migration`_ in :ref:`command-line-tools` for more details.
 
 .. note:: Since the migration class is a PHP class, the classname must be unique in every migration file.