sequelize-typescript-migration-rafaeltab/dist/utils/writeMigration.js

migration tool for sequelize & typescript users

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const beautify = require("js-beautify");
const fs = require("fs");
const path = require("path");
const removeCurrentRevisionMigrations_1 = require("./removeCurrentRevisionMigrations");
async function writeMigration(revision, migration, options) {
    await (0, removeCurrentRevisionMigrations_1.default)(revision, options.outDir, options);
    const name = options.migrationName || "noname";
    const comment = options.comment || "";
    let commands = `var migrationCommands = [ \n${migration.commandsUp.join(", \n")} \n];\n`;
    let commandsDown = `var rollbackCommands = [ \n${migration.commandsDown.join(", \n")} \n];\n`;
    const actions = ` * ${migration.consoleOut.join("\n * ")}`;
    commands = beautify(commands);
    commandsDown = beautify(commandsDown);
    const info = {
        revision,
        name,
        created: new Date(),
        comment,
    };
    const template = `'use strict';

var Sequelize = require('sequelize');

/**
 * Actions summary:
 *
${actions}
 *
 **/

var info = ${JSON.stringify(info, null, 4)};

${commands}

${commandsDown}

module.exports = {
    pos: 0,
    up: function(queryInterface, Sequelize)
    {
        queryInterface = queryInterface.context;
        var index = this.pos;
        return new Promise(function(resolve, reject) {
            function next() {
                if (index < migrationCommands.length)
                {
                    let command = migrationCommands[index];
                    console.log("[#"+index+"] execute: " + command.fn);
                    index++;
                    queryInterface[command.fn].apply(queryInterface, command.params).then(next, reject);
                }
                else
                    resolve();
            }
            next();
        });
    },
    down: function(queryInterface, Sequelize)
    {
        queryInterface = queryInterface.context;
        var index = this.pos;
        return new Promise(function(resolve, reject) {
            function next() {
                if (index < rollbackCommands.length)
                {
                    let command = rollbackCommands[index];
                    console.log("[#"+index+"] execute: " + command.fn);
                    index++;
                    queryInterface[command.fn].apply(queryInterface, command.params).then(next, reject);
                }
                else
                    resolve();
            }
            next();
        });
    },
    info: info
};
`;
    const revisionNumber = revision.toString().padStart(8, "0");
    const filename = path.join(options.outDir, `${revisionNumber + (name !== "" ? `-${name.replace(/[\s-]/g, "_")}` : "")}.js`);
    fs.writeFileSync(filename, template);
    return { filename, info, revisionNumber };
}
exports.default = writeMigration;
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