mirror of https://github.com/aldy505/bob.git
110 lines
4.4 KiB
Markdown
110 lines
4.4 KiB
Markdown
# Bob - SQL Query Builder
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[](https://pkg.go.dev/github.com/aldy505/bob) [](https://goreportcard.com/report/github.com/aldy505/bob)  [](https://www.codefactor.io/repository/github/aldy505/bob) [](https://codecov.io/gh/aldy505/bob) [](https://www.codacy.com/gh/aldy505/bob/dashboard?utm_source=github.com&utm_medium=referral&utm_content=aldy505/bob&utm_campaign=Badge_Grade) [](https://github.com/aldy505/bob/actions/workflows/build.yml) [](https://github.com/aldy505/bob/actions/workflows/coverage.yml)
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Think of this as an extension of [Squirrel](https://github.com/Masterminds/squirrel) with functionability like [Knex](https://knexjs.org/). I still use Squirrel for other types of queries (insert, select, and all that), but I needed some SQL builder for create table and some other stuffs.
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Oh, and of course, heavily inspired by [Bob the Builder](https://en.wikipedia.org/wiki/Bob_the_Builder).
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```go
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import "github.com/aldy505/bob"
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```
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## Usage
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It's not ready for production yet. But, the API is probably close to how you'd do things on Squirrel. This is an example for using with pgx.
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```go
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import (
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"context"
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"log"
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"strings"
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"github.com/aldy505/bob"
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"github.com/jackc/pgx/v4"
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)
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func main() {
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db := pgx.Connect()
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// Check if a table is exists
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sql, args, err = bob.HasTable("users").PlaceholderFormat(bob.Dollar).ToSql()
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if err != nil {
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log.Fatal(err)
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}
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var hasTableUsers bool
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err = db.QueryRow(context.Background(), sql, args...).Scan(&hasTableUsers)
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if err != nil {
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if err == bob.ErrEmptyTablePg {
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hasTableUsers = false
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} else {
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log.Fatal(err)
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}
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}
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if !hasTableUsers {
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// Create "users" table
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// Note that this will return multiple query in a single string.
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sql, _, err := bob.
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CreateTable("users").
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IntegerColumn("id", "PRIMARY KEY", "SERIAL").
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StringColumn("name", "NOT NULL").
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TextColumn("password", "NOT NULL").
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DateColumn("created_at").
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ToSql()
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if err != nil {
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log.Fatal(err)
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}
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_, err = db.Query(context.Background(), splitQuery[i])
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if err != nil {
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log.Fatal(err)
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}
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// Create another table, this time with CREATE TABLE IF NOT EXISTS
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sql, _, err := bob.
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CreateTableIfNotExists("inventory").
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UUIDColumn("id", "PRIMARY KEY").
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IntegerColumn("userID", "FOREIGN KEY REFERENCES users(id)").
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JSONColumn("items").
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IntegerColumn("quantity").
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ToSql()
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if err != nil {
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log.Fatal(err)
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}
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_, err = db.Query(context.Background(), inventoryQuery[i])
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if err != nil {
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log.Fatal(err)
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}
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}
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}
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```
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## Features
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* `bob.CreateTable(tableName)` - Basic SQL create table
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* `bob.CreateTableIfNotExists(tableName)` - Create table if not exists
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* `bob.HasTable(tableName)` - Checks if column exists (return error if false, check example above for error handling)
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* `bob.HasColumn(columnName)` - Check if a column exists on current table
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### TODO
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Meaning these are some ideas for the future development of Bob.
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* `bob.DropTable(tableName)` - Drop a table (`drop table "users"`)
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* `bob.DropTableIfExists(tableName)` - Drop a table if exists (`drop table if exists "users"`)
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* `bob.RenameTable(tableName)` - Rename a table (`rename table "users" to "old_users"`)
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* `bob.Truncate(tableName)` - Truncate a table (`truncate "users"`)
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* `bob.Upsert(tableName)` - UPSERT function (`insert into "users" ("name", "email") values (?, ?) on duplicate key update email = ?`)
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* `bob.ExecWith()` - Just like Squirrel's [ExecWith](https://pkg.go.dev/github.com/Masterminds/squirrel?utm_source=godoc#ExecWith)
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* `bob.Count(tableName, columnName)` - Count query (`select count("active") from "users"`)
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## Contributing
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Contributions are always welcome! As long as you add a test for your changes.
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## License
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Bob is licensed under [MIT license](./LICENSE) |