Osm Admin

Yesterday, I tested the instructions for installing Osm Admin locally as a contributor.

In Osm Admin, object editing form is used not only for a single object editing, but also for editing multiple objects, and for creating a new object.

I also created the osmphp/extras package as an easy way of adding Font Awesome icons to a project. Later, I'll add more optional reusable goodies to this package.

Yesterday, I described a user interface pattern for managing data of a certain data class using a grid/form pair. Let's call this grid/form pair class interface in the admin area.

In this article, I'll examine what moving parts are inside a class interface.

This time:

• I found out that the whole search index creation should be done during indexing, not migrations.
• I refactored diff algorithm and made it much easier to read.

Yesterday:

• Osm Admin in-browser functionality was fully restored after creating search index in the indexer.
• All test suites started passing again, and being run automatically on git push.

I developed dehydrate()/hydrate() functions for a very practical need - storing the data class schema:

• in cache - to reduce processing time spent on reflection;
• and in database - to compare current and new database schema, and only add new tables and columns.

This article describes the information stored in the schema, and unit tests that I prepared in order to be sure that schema classes are property hydrated.

After enumerating what kind of changes can happen to a property, I started implementing the most hard one - changing property type.

Implemented in Osm Admin:

• new ALTER TABLE algorithm
• NULL to non-NULL data conversion
• new query test suite