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go-modeldb

A simple wrapper around sql.DB to help with structs. Not quite an ORM.

Philosophy: Don't make an ORM

Example:

// Setup
require "modeldb"
db := ...
modeldb.SetDB(db)


// Declaring a model
type User struct {
    Id       string `json:"id"      db:"id,autoinc"`
    Email    string `json:"email"   db:"email,null"`
    Scrypt   []byte `json:"-"       db:"scrypt"`
    Salt     []byte `json:"-"       db:"salt"`
}   
var UserModel = db.GetModelInfo(new(User))


// Inserting a model
user := &User{Email:email, Scrypt:scrypt, Salt:salt}
_, err = modeldb.Exec(
    `INSERT INTO user (`+UserModel.InsertFields+`)
     VALUES (`+UserModel.Placeholders+`)`,
    user,
) 


// Querying a model
var user User
err := modeldb.QueryRow(
    `SELECT `+UserModel.QueryFields+`
     FROM user WHERE email=?`,
    email,
).Scan(&user)


// Querying many rows
rows, err := modeldb.QueryAll(User{},
    `SELECT `+UserModel.QueryFields+`
     FROM user WHERE id < 100`)     
)   
if err != nil { panic(err) }
users := rows.([]*User)


// Auto-retry transaction blocks
err := db.DoBeginSerializable(func(tx *db.ModelTx) {
    _, err := tx.Exec(...)
    if err != nil {
        panic(err)
    }
    ...
})

Also supports MySQL with some included helpers.

Alternatives

https://github.com/jmoiron/sqlx

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A simple wrapper around sql.DB to help with structs. Not quite an ORM.

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