Versuch, eine übersichtlichere Struktur einzuführen

packages/db/db.go

@@ -0,0 +1,72 @@
+package db
+
+import (
+	"bufio"
+	"database/sql"
+	"fmt"
+	"os"
+	"strings"
+	"syscall"
+
+	"streifling.com/jason/sicherheitsunterweisung/packages/types"
+
+	"github.com/go-sql-driver/mysql"
+	"golang.org/x/term"
+)
+
+type DB struct {
+	*sql.DB
+	Name string
+}
+
+func getCredentials() (string, string, error) {
+	fmt.Printf("DB Benutzer: ")
+	user, err := bufio.NewReader(os.Stdin).ReadString('\n')
+	if err != nil {
+		return "", "", fmt.Errorf("getCredentials: bufio.NewReader(os.Stdin).ReadString('\n'): %v", err)
+	}
+
+	fmt.Printf("DB Passwort: ")
+	bytePass, err := term.ReadPassword(int(syscall.Stdin))
+	if err != nil {
+		return "", "", fmt.Errorf("getCredentials: term.ReadPassword(int(syscall.Stdin)): %v", err)
+	}
+	fmt.Println()
+	pass := string(bytePass)
+
+	return strings.TrimSpace(user), strings.TrimSpace(pass), nil
+}
+
+func OpenDB(dbName string) (*DB, error) {
+	var db *DB
+	var err error
+
+	cfg := mysql.NewConfig()
+	cfg.DBName = dbName
+	cfg.User, cfg.Passwd, err = getCredentials()
+	if err != nil {
+		return nil, fmt.Errorf("OpenDB: getCredentials(): %v\n", err)
+	}
+
+	db.Name = dbName
+	db.DB, err = sql.Open("mysql", cfg.FormatDSN())
+	if err != nil {
+		return nil, fmt.Errorf("newDB: sql.Open(\"mysql\", cfg.FormatDSN()): %v\n", err)
+	}
+	if err := db.Ping(); err != nil {
+		return nil, fmt.Errorf("newDB: db.Ping(): %v\n", err)
+	}
+
+	return db, nil
+}
+
+func (db *DB) WriteBriefing(b *types.Briefing) error {
+	for i := 1; i < len(b.Participants); i++ {
+		_, err := db.Exec("INSERT INTO ? (instructor_first, instructor_last, date, time, state, location, participant_first, participant_last, company) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)", db.Name, b.FirstName, b.LastName, b.Date, b.Time, b.State, b.Location, b.Participants[i].FirstName, b.Participants[i].LastName, b.Participants[i].Company)
+		if err != nil {
+			return fmt.Errorf("*DB.WriteBriefing: db.Exec(\"INSERT INTO ? (instructor_first, instructor_last, date, time, state, location, participant_first, participant_last, company) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)\", db.Name, b.FirstName, b.LastName, b.Date, b.Time, b.State, b.Location, b.Participants[i].FirstName, b.Participants[i].LastName, b.Participants[i].Company): %v\n", err)
+		}
+	}
+
+	return nil
+}

packages/server/server.go

@@ -0,0 +1,49 @@
+package server
+
+import (
+	"fmt"
+	"html/template"
+	"log"
+	"net/http"
+	"streifling.com/jason/sicherheitsunterweisung/packages/types"
+)
+
+func DisplayForm(i *int64) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		template.Must(template.ParseFiles("templates/index.html")).Execute(w, i)
+	}
+}
+
+func AddParticipant(i *int64) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		*i++
+		template.Must(template.ParseFiles("templates/index.html", "templates/participant.html")).ExecuteTemplate(w, "participant", i)
+	}
+}
+
+func SubmitForm(ch chan<- *types.Briefing, i, j *int64) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var b types.Briefing
+
+		b.FirstName = r.PostFormValue("instructor-first")
+		b.LastName = r.PostFormValue("instructor-last")
+		b.Date = r.PostFormValue("date")
+		b.Time = r.PostFormValue("time")
+		b.State = r.PostFormValue("state")
+		b.Location = r.PostFormValue("location")
+
+		for ; *j <= *i; *j++ {
+			b.Participants = append(b.Participants, types.Participant{
+				ID: *j,
+				Person: types.Person{
+					FirstName: r.PostFormValue("participant-first-" + fmt.Sprint(*j)),
+					LastName:  r.PostFormValue(("participant-last-" + fmt.Sprint(*j))),
+				},
+				Company: r.PostFormValue(("participant-company-" + fmt.Sprint(*j))),
+			})
+		}
+
+		log.Println(b)
+		ch <- &b
+	}
+}

packages/types/types.go

@@ -0,0 +1,23 @@
+package types
+
+type Person struct {
+	FirstName string
+	LastName  string
+}
+
+type Instructor Person
+
+type Participant struct {
+	ID int64
+	Person
+	Company string
+}
+
+type Briefing struct {
+	Instructor
+	Date         string
+	Time         string
+	State        string
+	Location     string
+	Participants []Participant
+}