I have 2 repo which uses the same database. I have different migrations in each repo. how can I specify a custom migration table in 1 repo rather than the default migration table in Beego?
Beego version 1.10.1
Go version go1.10.3
It is not currently possible with beego, it uses hardcoded table name migrations as you can see in the source code - https://github.com/astaxie/beego/blob/develop/migration/migration.go#L149
But since it is open source, it can be improved with a PR!
Related
I try use flyway for migration. I find this option
spring.flyway.target= # Target version up to which migrations should
be considered.
But I need set version with which to start migration. For exmple I need start migration from V3_foo.sql
Can I do it?
Briefly why I need it. I have a database with data. No migration tools have been used before. Everything was done manually. Now I have created an init.sql and placed in it the creation of the entire base structure. Now, when adding changes, I will start the migration from version 2. And if you need to run on a new empty database - from version 1
Baseline is the flyway feature you need.
If your case, baseline your database with flyway.baselineVersion=2 will tell flyway that your database is already at the version 2. Any subsequent flyway migrate will only process migrations greater than 2.
Note: If previous migrations failed, it may be necessary to drop table flyway_schema_history first.
Does Laravel allow to use database migration based on ready SQL created in Workbench as an option?
As I know, now it suggests to write migration file manually following the specific format.
Sure, there's nothing preventing you from running SQL in a migration. You can use DB::statement() to do this inside of up() in your migration.
\Illuminate\Support\Facades\DB::statement('
create table application_pages_test
(
id int unsigned auto_increment
primary key,
application_id tinyint unsigned not null,
title varchar(64) not null,
created_at timestamp null,
updated_at timestamp null
)
collate=utf8_unicode_ci
;');
Yes, Laravel allows the use of ready SQL created in Workbench. You just have to connect your Laravel application to the database, and you should be fine.
The use of migrations in Laravel is not mandatory, but very useful in tracking versions your database structure.
Since tracking the structure of your database is very essential, I recommend you try one of these packages to convert your SQL to Laravel migrations:
MySQL Workbench Export Laravel 5 Migrations Plugin – plugin for
a popular software MySQL Workbench, written in Python language
Laravel Migration Exporter for Sequel Pro – A bundle for Sequel
Pro that lets you generate Laravel migration files from existing
tables. Written in PHP language.
Xethron Laravel Migrations Generator – Laravel artisan-command
tool, available as Laravel package
Source
A few weeks ago we released support for Laravel framework for our visual editor Skipper (https://www.skipper18.com). From your question I suppose, it might be very useful for you.
You can import your project from a database (MySql, Postgres, MSSQL or Sqlite) and you will get a clear graphical diagram of it which you can then automatically export to model classes and migrations files.
In addition, you can make changes in the model and create new migrations and repetitively export all changes back to Laravel PHP files. All of this via a user-friendly interface.
If you want to try it, it's completely free during the beta period. You can download it here https://www.skipper18.com/en/download and in the initial application license screen select "Laravel Beta license".
I am having a very bad situation here, working on a Laravel 5 project. previously developed by another developer. That developer at start created couple of tables using migration generators and added some columns using migrations. After that, he added table columns straight away using some sql GUI. I was given the sql dump which i imported and set it up on my local machine, now when i created a table using php artisan make:migration create_myTableName_table --create="myTableName" the table migration is created successfully, but, when i did php artisan migrate it's giving me SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'someTable' already exists I checked migrations folder and matched it with current version of someTable and i can see the columns are different, same with other tables aswell.
What should be the best case to handle this in this situation, i want to keep up with Laravel migrations generator so that in future if any other developer want to work on this project he just has to run migration command to migrate database or to create tables or create columns... Should i re-write all migrations ? pleas help. Thanks
Given your situation, I’d put the .sql export in your repository, clear out the old, broken migrations, and create a new one that initially imports the database dump. Then just create migrations as normal going forward.
Quick and dirty?
Delete current migration files. Clear your migrations table and export the whole DB. Put the SQL dump in the repo and instruct other devs to import it before they run php artisan migrate. With the dump imported and migrations table truncated, you can create new migrations with no further collisions with the legacy migrations.
Feeling ambitious?
Use a package like migrations-generator to generate migrations based on your current DB structure. Then, migrate away.
I have created the schema through MySQL Workbench and synchronized it with the database.
All the tables are there in database. Now when I use the
php artisan migrate
command, is there an option to take the fields director from the database instead of specifying the fields name.
Also could you please suggest any other tools on github.
Laravel Migrations Generator will help us generate migration source code from existed database in Laravel 4.
so if you already have your sql schema, created in mysql workbench, then you'd need to put that schema into laravel migrations using the schema builder.
there are tools that make this part easier:
http://www.laravelsd.com/ - kinda like mysql workbench, with an export possibility to laravel migration code
https://github.com/XCMer/larry-four-generator writes existing databases to laravel migration code
Another option is to use our tool Skipper (https://www.skipper18.com) We introduced Laravel support a month ago and now, in a beta phase, it is free for Laraver users.
Skipper allows you to import your MySQL Workbench project directly (or it is possible to import existing database too) and then export migrations and object files from Skipper to your Laravel project.
The benefit of this solution is that you can maintain your ORM schema directly in Skipper and continuously update model object files and create new migrations automatically from the application without the necessity to write any code manually.
If you want to try it, you can download it here https://www.skipper18.com/en/download, and in the initial application license screen select "Laravel Beta license".
I have a local instance of a database that I recently created using DbContext.Database.Create(), so the __MigrationHistory table exists with an InitalCreate entry that matches the code at the moment.
Some code-based migrations exist in the Migrations folder, however. These will be run in our development and staging environments to bring those databases in line with the code. I don't need to apply them locally, however, since I created the database using the current code.
I now need to make a change to the model and create the corresponding migration. But when I run Add-Migration TestMigration, I get the following error
Unable to generate an explicit migration because the following explicit
migrations are pending:
[201203271113060_AddTableX,
201203290856574_AlterColumnY]
Apply the pending explicit migrations before attempting to generate
a new explicit migration.
What should I do in this case? I can't point the Add-Migration tool at another environment because it's not guaranteed that version matches what I have locally. I want a migration that matches only the changes I've made.
It seems I have a few options but none are ideal:
Delete the other migrations from the Migrations folder, run the Add-Migration command, upgrade the database, then restore the old migrations. This is simple but seems a bit hackish.
Revert to the version of the model in source control that the first migration was applied to, then build this and use it to create the database. Then get the latest version, apply all the migrations, then I'm ready to add my migration. This seems like a lot of effort!
Create the migration manually.
Does anyone have any suggestions about how to manage this?
We are planning to use a variant of your Option #1...
Our Standard Operating Procedure is to generate a SQL script for each migration (using the -script option of update-database), in order to have SQL scripts to be applied to end-user "production" databases by InstallShield (we plan to use EF update-database only for developer databases).
Thus, we have both the Migration .cs files and the corresponding .sql files for all migrations in our Migrations folder.
So rather than deleting the migrations from the Migrations folder (as you proposed in #1), we use SQL Mgmt Studio to manually apply just the parts of the .sql files that do the inserts into _MigrationHistory.
That brings the _MigrationHistory of the local database up-to-date with the changes that are already incorporated into that database.
But it's a kludge, and we're still looking for a better solution.
DadCat
What I've found works best is very simple: don't use DbContext.Database.Create() once you've enabled migrations. If you want to programmatically create a new database, use the migrations API instead.
var migrator = new DbMigrator(new Configuration());
migrator.Update();
Then you've got the full migration history and adding further migrations works just as expected.
You either need to run "update-database" from the package manager console to push your changes to the database OR you can delete the pending migration file ([201203271113060_AddTableX]) from your Migrations folder and then re-run "add-migration" to create a brand new migration based off of your edits.
I have encountered the same problem.
If you run
Update-database
and then run
Add-Migration YourMigrationName
This solves the problem
simply exclude the old migration file from the solution files.