db-migrate/node-db-migrate

Is there a way to hook into an "afterMigrate" event?

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#384 opened on Jul 11, 2016

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Description

I'm trying to figure out a way to always run code after a migration happens, in my case I'm using mysql and I'd like to ensure a set of views is up to date so that we don't have to manually re-create our views after the underlying schema of the table changes. I noticed there is an endMigration event in the driver, maybe there is a way to hook into this?

Or perhaps if I put an index.js file in the migrations directory I can monkey patch the up function to call my recreate views methods after migrations are done?

Thanks for your help.

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Contributor guide

Tech stack
javascriptnodejssqlmysql
Domain
backenddatabasedeveloper experience
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Knowledge of Node.jsFamiliarity with db migrate internalsUnderstanding of migration lifecycle
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Investigate the existing event system in db migrate, specifically the 'endMigration' event in the driver. Look at how other hooks are implemented and propose adding an 'afterMigrate' event that fires after each migration. Consider the API design and backward compatibility. The issue lacks concrete implementation details, so explore the codebase in the repo (e.g., lib/driver.js) and open a discussion on the relevant files.