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67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
12 months ago
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package stemdb
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import (
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"fmt"
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"os"
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_ "github.com/go-sql-driver/mysql"
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"github.com/jmoiron/sqlx"
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)
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type Book struct {
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ID int
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Author string
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Seria string
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Title string
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Deleted bool
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Selected bool
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}
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var dbx *sqlx.DB
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func Connect() *sqlx.DB {
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db, err := sqlx.Open("mysql", "itman:X753951x@(xigmanas:3306)/stem")
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checkError("open db", err)
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dbx = db
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return db
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}
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// возвращает список всех книг
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// возможно использование фильтров в query, типа: ?deleted=deleted&selected=not selected
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func ListAllBooks(options ...string) ([]Book, error) {
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cmd := `
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SELECT
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id, author, seria, title,
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deleted, selected
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FROM
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book
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`
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// блок условий
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where := ""
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if options != nil {
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where = "WHERE 1=1"
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for _, o := range options {
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if o != "" {
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where += fmt.Sprintf(" AND %s", o)
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}
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}
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}
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//fmt.Printf("where: %s\n", where)
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var books []Book
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err := dbx.Select(&books, cmd+where)
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//checkError("ListBooks", err)
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return books, err
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}
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// поскольку это отдельный пакет, то приходится дублировать
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// ============================ разные утилиты ==========================
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// Проверяет наличие ошибки
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func checkError(src string, err error) {
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if err != nil {
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fmt.Printf("[db] (%s): %s\n", src, err)
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os.Exit(1)
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}
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}
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