Osm Admin: ALTER TABLE. Non-NULL Data Conversion. Query Test Suite
2 years ago ∙ 5 minutes read
Implemented in Osm Admin:
- new ALTER TABLE algorithm
- NULL to non-NULL data conversion
- new query test suite
2 years ago ∙ 5 minutes read
Implemented in Osm Admin:
2 years ago ∙ 4 minutes read
This time, I tackled adding an explicit property to an existing table, and then making it non-nullable.
It raised the need for data conversions - additional handling of the existing data - or otherwise, the database engine fails, or the data becomes invalid.
And it made me split migrations in two parts - the one that runs before the data conversion, and the other one that runs afterwards.
2 years ago ∙ 3 minutes read
While working on diff algorithm I noticed a certain pattern that I use over an over again.
Using this pattern, I implemented notification table diff.
Finally, I rearranged diff/migration code for better code readability.
2 years ago ∙ 3 minutes read
Yesterday, I moved the table creation code into new schema diff migration engine.
Now, working on notification table migrations.
2 years ago ∙ 2 minutes read
This time:
2 years ago ∙ 1 minute read
Before digging into property diff algorithm, let's dig into how exactly it's used, and what other property-related logic is there.
2 years ago ∙ 2 minutes read
Yesterday, I continued working on schema migrations:
2 years ago ∙ 2 minutes read
After a system update, I've got some problem with my laptop, and one thing to check was system log files.
This got me thinking: what makes a good log for my own application? And I think that application logs are as useful as they are able to answer potential questions I may have when an application is in production.
Let's think what kind of questions I might have, and what information might be useful to answer them.
2 years ago ∙ 4 minutes read
Recently, I fixed numerous issues to make the first migration tests work.
Then, I started implementing the schema diff algorithm - the basis for schema migrations.
2 years ago ∙ 1 minute read
More dots got connected in the schema migration design, see this post for details.
Then, I tried to return to TDDing it, but strange errors met me there, so I left them to be resolved in the next piece.
2 years ago ∙ 2 minutes read
Schema migrations are going to be generated and executed automatically under gulp watch
. It will result in lots of tiny migrations: add a column, change its type, make it not nullable, and so on.
It's convenient during development, but it might be not optimal to reapply in production. Indeed, it's better to convert a large table to new structure all at once rather than running a conversion for each of the tiny migration.
This observation contradicts the previously stated migration workflow, so let's update it.
2 years ago ∙ 4 minutes read
In spirit of TDD, I started with a meaningful, but failing test that is reasonably fast. Then, I worked to make it green:
2 years ago ∙ 1 minute read
After drafting some ideas of how the schema migrations should actually work, let's start implementing it in TDD way.
2 years ago ∙ 3 minutes read
The goal of the current iteration is to adjust the database schema and preserve/convert existing data according to any changes in schema classes, grids, forms or indexers.
This post presents some thoughts how it might work with class definitions.
2 years ago ∙ 2 minutes read
After finishing the iteration "#17 Minimum UI", I revisited the goals and the scope of the minimum viable product, and picked the most pressing task for the next iteration - "#18 Database Schema Changes".
2 years ago ∙ 1 minute read
I implemented the last user action that is typical to a CRUD application - object deletion.
2 years ago ∙ 3 minutes read
Done:
INSERT INTO ... SELECT ...
statements2 years ago ∙ 3 minutes read
I came with an idea of much cleaner Osm Admin data class "markup", and more straightforward architecture, and I decided to give it a go in a separate experimental branch v0.2
, and to see if it's viable.
After three weeks of implementation effort, I can say that it is viable, and it's so much better! And it's not a completely new effort, I mostly copy code from v0.1
and some parts of osmphp/framework:old_v4
, and adapt it.
You can already define data classes using new markup, generate the database tables, and query it using new formula syntax. I really wanted to come with some UI working, but there wasn't enough time for that. It stays my priority for the next iteration.
2 years ago ∙ 2 minutes read
My current goal is to get some minimum Osm Admin user interface and API working - just for one property, one data type, one UI control type, and then improve.
And there is a lot of space for improvement. The main areas are listed in this document.
I'd really appreciate a helping hand, so if you are into this sort of things, DM me on Twitter.
2 years ago ∙ 4 minutes read
I feel that both attributes decorating data classes, and object model parsed from it are too complex.
Let's have a fresh look at Osm Admin. If I had to start from scratch, how would it be?
2021 ∙ August ∙ osm.software Website
2 years ago ∙ 1 minute read
Install PHP 8, MySql, Node, Gulp and ElasticSearch. Clone the project. Edit project settings. Finally, run few commands in the command line.
2 years ago ∙ 3 minutes read
New Osm Framework version comes with improved, configurable and easily
customizable Gulp script, modular NPM dependencies, standard page layout Blade
component and brand new README
. osm.software website
contains an easy-to-follow new project installation instruction.
3 years ago ∙ 1 minute read
The first osm.software blog articles have been written, edited and revised. Content changes are deployed in semi-automated way. The website got some SEO improvements, and now it scores 100% in Google Lighthouse.
2021 ∙ July ∙ osm.software Website
3 years ago ∙ 1 minute read
Today, osm.software reached an important milestone - 100% Lighthouse score.
2021 ∙ July ∙ osm.software Website
3 years ago ∙ 1 minute read
This article explains how to manage and assign blog categories.
3 years ago ∙ 1 minute read
Osm Framework introduced production mode and maintenance mode. osm.software website went live.
3 years ago ∙ 1 minute read
Osm Framework introduced JS controllers, and JS unit tests. osmcommerce.com website project was renamed to osm.software, it finalized the post rendering, and introduced a tool for checking broken links.
2021 ∙ May ∙ osm.software Website
3 years ago ∙ 3 minutes read
This article explains how to write and publish blog posts.