automigrate | SQL schemas with git automatically migrate | Data Migration library
kandi X-RAY | automigrate Summary
kandi X-RAY | automigrate Summary
Automigrate is a command-line tool for SQL migrations. Unlike other migration tools, it uses git history to do diffs on create table statements instead of storing the migration history in a folder somewhere.
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Top functions reviewed by kandi - BETA
- Transform table_stmts into SQL statements
- Parse the sqlite database
- Group a list of Statement objects into a dictionary
- Return the arguments for a column
- Return diff between ref1 and ref2
- Show diff between ref1 and ref2
- Return the diff between two statements
- Compute the diff between two statements
- Try to repair errors
- Extract errors from a table
- Extract errors from table statement
- Run migrations
- Main entry point of git
- Build argument parser
- Return the name of the table
- Build the argument parser
- Main entry point for git
- Create argument parser
- Wrap a Statement
- Read files from glob pattern
automigrate Key Features
automigrate Examples and Code Snippets
Community Discussions
Trending Discussions on automigrate
QUESTION
i want to preload M2M relation with gorm and it is not populating the slice with Preload function.
ANSWER
Answered 2021-Jun-15 at 14:41There are a couple of things to try out and fix:
You probably don't need the many2many attribute to load the DonationDetail slice, since they can be loaded only with DonationID. If you have a foreign key, you can add it like this:
QUESTION
package main
import (
"fmt"
_ "github.com/jinzhu/gorm/dialects/postgres"
"gorm.io/driver/postgres"
"gorm.io/gorm"
)
type Books struct {
gorm.Model
ID uint
title string
author string
description string
display_picture byte
}
func main() {
dsn := //successful create connection string
db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
if err != nil {
// fmt.Println(err)
panic(err)
}
b := Books{}
db.AutoMigrate(&b)
data := Books{
title: "Invisible Cities",
author: "Italio Calvino",
description: "This book shows you the power of prose. It's a beautiful read which will make you feel like you're floating on a cloud.",
}
db.Create(&data)
fmt.Println(data)
}
ANSWER
Answered 2021-Jun-10 at 13:27- Rewrite your code to this and always remember in Gorm we need to have Model Fields Capitalised
QUESTION
I want to write table schemas declarative way like
- GORM AutoMigrate https://gorm.io/ko_KR/docs/migration.html
- django Migrations https://docs.djangoproject.com/en/3.2/topics/migrations/
However, As far I know, Diesel requires hand-written migration DDL like below.
...ANSWER
Answered 2021-May-18 at 15:24If I understand correctly, you're looking for a way to keep your rust entities and db schema in sync, without having to write any SQL (which is basically what a regular orm like EFCore or GORM would provide).
If that's what you need, I'm afraid diesel won't do what you're looking for. There is this library which looks nice https://github.com/rust-db/barrel, and it provides a way for you to write your migrations in Rust instead of SQL, a bit like EFCore.
diesel also provides the embed_migrations! macro, which you can use in order to automatically run migrations without using the cli.
However, while all these tools will sort of help you out in automating your db migrations, you're still going to have to write them manually.
QUESTION
I'm using GORM to create records from within a Go application that uses gin. I've specified in the gorm.Config file a NowFunc as specified in GORM documentation here.
Here is a full, encapsulated sample application using gin and gorm that demonstrates the problem I am trying to solve:
...ANSWER
Answered 2021-Apr-16 at 18:54After much research, the problem is that Go's default time precision is nanoseconds, but Postgres SQL is microsecond precision. The following library resolved my problem:
QUESTION
import (
"gorm.io/gorm"
"gorm.io/driver/postgres"
)
type School struct {
gorm.Model
Students []Student `json:"students"`
}
type Student struct {
gorm.Model
Name string `json:"name"`
}
func init() {
//connect to db first
conn, err := gorm.Open(postgres.New(postgres.Config{
DSN: dbUri,
PreferSimpleProtocol: true,
}), &gorm.Config{})
if err != nil {
log.Fatal(err)
}
db = conn
db.AutoMigrate(&Student{}, &School{})
}
ANSWER
Answered 2021-Apr-15 at 09:25You need to add a SchoolID field to your Student. See the docs here for full usage.
QUESTION
I'm still learning about go and gorm, and following the tutorial from the gorm page itself (https://gorm.io/docs/advanced_query.html). It is stated that results from Find and First can be stored in map[string]interface{} or []map[string]interface{}. However, upon testing this functionality it doesn't seem to work:
...ANSWER
Answered 2021-Mar-10 at 16:22I noticed that you are browsing the Gorm V2 docs, but are importing the Gorm V1.
You should change your imports to:
QUESTION
I am starting to implement unit tests in a Vapor 4 project but the users postgres table is not being deleted/created after each tests. It works only for 1 test before it crashes them all.
Even though I am not implementing any tests, the compiler stop with this error:
caught error: "previousError(server: table "users" does not exist (DropErrorMsgNonExistent))"
My database is running with PostgreSQL in a Docker container. When I delete this container manually and run the tests again, there is no error. When I run it a second time, the error comes back.
Why is my table not being deleted after each tests?
This is my testing file, I have implemented a simple test to try out the plumbing:
...ANSWER
Answered 2021-Mar-12 at 09:15Your revert will fail if the table doesn't exist.
Changing it to try? app.autoRevert().wait() and your auto-migration to try? app.autoMigrate().wait() will ignore any errors.
QUESTION
I want to create a model User and Social where the User model has many Socials. Ideally a Social type would also have has one relation to simpilify querying from either side. Here is a code sample:
database type is MySQL 8.0
...ANSWER
Answered 2021-Feb-26 at 12:59According to documentation (https://gorm.io/docs/has_many.html#Has-Many), you need to use objects, not references
QUESTION
I have a model which is used in combination with GORM:
...ANSWER
Answered 2021-Feb-10 at 15:05It can't be done automatically as far as I can see.
As you note, gorm will not delete old columns in the table so in essence once you delete the field, gorm forgets about the column. What's clear is that at some point you had tagged your Name field with gorm:"not null" or that constraint wouldn't have been put on.
So one way you might reverse that would be to reinstate the old field, but remove the not null tag, and run the migration. That will remove the not null constraint. Then remove the field, and run the migration again. Not automatic by any means.
You might also look at using the migrator to create your own migration script that drops the constraint or even drops the column entirely.
In my humble opinion Gorm's auto-migrations is a feature that for now is only good for quick prototyping. I don't think it can replace a proper migration system in anything more than a toy app; sooner or later you run into these problems that force you to write careful migration scripts yourself. Packages to look at for that include github.com/pressly/goose or github.com/golang-migrate/migrate.
QUESTION
I want to make a webapp and I have a simple data model with a one to many relation. I tried sticking to the documentation of gorm and from my understanding this should work:
...ANSWER
Answered 2021-Jan-31 at 10:59As it says you need to define foreign key relationship for comments field like this.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install automigrate
You can use automigrate like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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