A Golang library for using SQL.
It is not an ORM, it is not a query builder. Dotsql is a library that helps you keep sql files in one place and use it with ease.
Dotsql is heavily inspired by yesql.
Installation
Simple install the package to your $GOPATH
with the go
tool from shell:
$ go get github.com/gchaincl/dotsql
Make sure Git is installed on your machine and in your system's $PATH
First of all, you need to define queries into a file:
-- name: create-users-table
CREATE TABLE users (
id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
name VARCHAR(255),
email VARCHAR(255)
);
-- name: create-user
INSERT INTO users (name, email) VALUES(?, ?)
-- name: find-users-by-email
SELECT id,name,email FROM users WHERE email = ?
-- name: find-one-user-by-email
SELECT id,name,email FROM users WHERE email = ? LIMIT 1
--name: drop-users-table
DROP TABLE users
Notice that every query has a name tag (--name:<some name>
),
this will be helpful for referring to a specific query
Then you should be able to run something like:
// Get a database handle
db, err := sql.Open("sqlite3", ":memory:")
// Loads queries from file
dot, err := dotsql.LoadFromFile("queries.sql")
// Run queries
res, err := dot.Exec(db, "create-users-table")
res, err := dot.Exec(db, "create-user", "User Name", "[email protected]")
rows, err := dot.Query(db, "find-users-by-email", "[email protected]")
row, err := dot.QueryRow(db, "find-one-user-by-email", "[email protected]")
stmt, err := dot.Prepare(db, "drop-users-table")
result, err := stmt.Exec()
For a complete example please refer to integration_test.go and test_schema.sql
Development
Dotsql is in a very early stage so api may change. Contributions are welcome!
Integration tests are tagged with +integration
, so if you want to run them you should:
go test -tags=integration
If integration tests takes too long remember to go install github.com/mxk/go-sqlite/sqlite3
Otherwise just run:
go test
Embeding
To avoid distributing sql
files with the binary, you will need to embed into it, tools like gotic may help
TODO
- Enable text interpolation inside queries using
text/template
-
sqlx
integration