Ghost/core/server/data/db/health.js
Hannah Wolfe b00d9fee6d 🎨 ⏱ Cleanup / optimise the server.init() function (#7985)
refs #2182

* 🔥 Remove unused options from server init
- this is left over from old code and is now unused

* 🎨 Move knex-migrator check to db health

- Move complex check function into own module
- Call module from server/index.js
- This just improves the readability of server/index.js

* 🔥 Remove old comments

- These comments all make no sense now!

* 🎨 ⏱ Move model init out of promise chain

- Model.init() does not return a promise
- Therefore, we can move it to the top of the init function, outside of the promise change
- This should be a minor optimisation, and again improves readability /clarity of what's happening

*  ⁉️ Move DBHash init / first run to Settings model

- this structure is left over from when we had code we executed on the first run of Ghost
- the implementation used the API to initialise one setting before populateDefaults is called
- this had lots of dependencies - the whole model, API, and permissions structure had to be initialised for it to work
- the new implementation is simpler, it captures the dbHash getting initialised during populateDefaults()
- it also adds an event, so we can do first-run code later if we really want to (or maybe apps can?!)
- perhaps this is hiding behaviour, and there's a nicer way to do it, but populateDefaults seems like a sane place to populate a default setting 😁

* ⏱ Optimise require order so config is first

- the first require to config will cause the files to be read etc
- this ensures that it happens early, and isn't confusingly timed as part of loading a different module

* 🎨 Simplify settings model changes
2017-02-17 17:44:34 +01:00

41 lines
1.6 KiB
JavaScript

var KnexMigrator = require('knex-migrator'),
config = require('../../config'),
errors = require('../../errors'),
models = require('../../models');
module.exports.check = function healthCheck() {
var knexMigrator = new KnexMigrator({
knexMigratorFilePath: config.get('paths:appRoot')
});
return knexMigrator.isDatabaseOK()
.catch(function (outerErr) {
if (outerErr.code === 'DB_NOT_INITIALISED') {
throw outerErr;
}
// CASE: migration table does not exist, figure out if database is compatible
return models.Settings.findOne({key: 'databaseVersion', context: {internal: true}})
.then(function (response) {
// CASE: no db version key, database is compatible
if (!response) {
throw outerErr;
}
throw new errors.DatabaseVersionError({
message: 'Your database version is not compatible with Ghost 1.0.0 Alpha (master branch)',
context: 'Want to keep your DB? Use Ghost < 1.0.0 or the "stable" branch. Otherwise please delete your DB and restart Ghost.',
help: 'More information on the Ghost 1.0.0 Alpha at https://support.ghost.org/v1-0-alpha'
});
})
.catch(function (err) {
// CASE: settings table does not exist
if (err.errno === 1 || err.errno === 1146) {
throw outerErr;
}
throw err;
});
});
};