📰 Dev.to · Pavel Myslik

Articles from Dev.to · Pavel Myslik · 3 articles · Updated every 3 hours · View all reads

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Fixing Production Data in Rails: Lessons from a 6,000-Row Backfill

Dev.to · Pavel Myslik 2w ago

Fixing Production Data in Rails: Lessons from a 6,000-Row Backfill

Fixing a bug in production is usually straightforward. But what happens when the data in the database...

I Thought My Rails Query Was Fine — Until NULL Ate My Data

Dev.to · Pavel Myslik 1mo ago

I Thought My Rails Query Was Fine — Until NULL Ate My Data

I ran into this while working on a task where I needed to process all contracts that were not coming...

Stop Using .any? the Wrong Way in Rails

Dev.to · Pavel Myslik 1mo ago

Stop Using .any? the Wrong Way in Rails

A single block passed to .any? can silently load thousands of records into memory. No warnings. No...