mirror of https://github.com/TryGhost/Ghost.git
50 lines
1.4 KiB
JavaScript
50 lines
1.4 KiB
JavaScript
const logging = require('../../../../../shared/logging');
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const commands = require('../../../schema').commands;
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const createLog = type => msg => logging[type](msg);
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function createColumnMigration({table, column, dbIsInCorrectState, operation, operationVerb, columnDefinition}) {
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return function columnMigrations({transacting}) {
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return transacting.schema.hasColumn(table, column)
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.then(dbIsInCorrectState)
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.then((isInCorrectState) => {
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const log = createLog(isInCorrectState ? 'warn' : 'info');
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log(`${operationVerb} ${table}.${column}`);
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if (!isInCorrectState) {
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return operation(table, column, transacting, columnDefinition);
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}
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});
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};
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}
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module.exports.up = createColumnMigration({
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table: 'posts',
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column: 'page',
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dbIsInCorrectState(columnExists) {
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return columnExists === false;
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},
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operation: commands.dropColumn,
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operationVerb: 'Removing'
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});
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module.exports.down = createColumnMigration({
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table: 'posts',
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column: 'page',
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dbIsInCorrectState(columnExists) {
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return columnExists === true;
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},
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operation: commands.addColumn,
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operationVerb: 'Adding',
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columnDefinition: {
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type: 'bool',
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nullable: false,
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defaultTo: false
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}
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});
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module.exports.config = {
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transaction: true
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};
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