getCredentials() und OpenDB() zum öffnen einer sql.DB erstellt

i und j sollten jetzt richtig verwendet werden

db.go

@@ -0,0 +1,52 @@
+package sicherheitsunterweisung
+
+import (
+	"bufio"
+	"database/sql"
+	"fmt"
+	"os"
+	"strings"
+	"syscall"
+
+	"github.com/go-sql-driver/mysql"
+	"golang.org/x/term"
+)
+
+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) (*sql.DB, error) {
+	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, 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
+}

go.mod

@@ -1,3 +1,10 @@
 module streifling.com/jason/sicherheitsunterweisung
 
 go 1.21.1
+
+require (
+	github.com/go-sql-driver/mysql v1.7.1
+	golang.org/x/term v0.13.0
+)
+
+require golang.org/x/sys v0.13.0 // indirect

go.sum

@@ -0,0 +1,6 @@
+github.com/go-sql-driver/mysql v1.7.1 h1:lUIinVbN1DY0xBg0eMOzmmtGoHwWBbvnWubQUrtU8EI=
+github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.13.0 h1:bb+I9cTfFazGW51MZqBVmZy7+JEJMouUHTUSKVQLBek=
+golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U=

main.go

@@ -1,6 +1,7 @@
-package main
+package sicherheitsunterweisung
 
 import (
+	"fmt"
 	"html/template"
 	"log"
 	"net/http"
@@ -14,7 +15,7 @@ type Person struct {
 type Instructor Person
 
 type Participant struct {
-	id int64
+	ID int64
 	Person
 	Company string
 }
@@ -29,8 +30,16 @@ type Briefing struct {
 }
 
 func main() {
+	var i, j int64
+	var b Briefing
+
+	i, j = 1, 1
 	mux := http.NewServeMux()
-	i := 1
+
+	db, err := OpenDB("sicherheitsunterweisung")
+	if err != nil {
+		log.Fatalln(err)
+	}
 
 	mux.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static/"))))
 	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
@@ -40,6 +49,25 @@ func main() {
 		i++
 		template.Must(template.ParseFiles("templates/index.html", "templates/participant.html")).ExecuteTemplate(w, "participant", i)
 	})
+	mux.HandleFunc("/submit/", func(w http.ResponseWriter, r *http.Request) {
+		b.Instructor.FirstName = r.PostFormValue("instructor-first")
+		b.Instructor.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, Participant{
+				ID: j,
+				Person: 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.Fatalln(http.ListenAndServe(":8080", mux))
 }

templates/index.html

@@ -12,6 +12,14 @@
   <h1>Sicherheitsunterweisung</h1>
 
   <form>
+    <div id="instructor">
+      <label for="instructor-first-input">Unterweiser Vorname</label>
+      <input type="text" name="instructor-first" id="instructor-first-input" />
+
+      <label for="instructor-last-input">Unterweiser Nachname</label>
+      <input type="text" name="instructor-last" id="instructor-last-input" />
+    </div>
+
     <div id="date">
       <label for="date-input">Datum</label>
       <input type="date" name="date" id="date-input" />
@@ -40,13 +48,13 @@
 
       <div id="participant-{{ . }}">
         <label for="participant-first-input-{{ . }}">Vorname</label>
-        <input type="text" name="participant-first" id="participant-first-input-{{ . }}" />
+        <input type="text" name="participant-first-{{ . }}" id="participant-first-input-{{ . }}" />
 
         <label for="participant-last-input-{{ . }}">Nachname</label>
-        <input type="text" name="participant-last" id="participant-last-input-{{ . }}" />
+        <input type="text" name="participant-last-{{ . }}" id="participant-last-input-{{ . }}" />
 
         <label for="participant-company-input-{{ . }}">Firma</label>
-        <input type="text" name="participant-company" id="participant-company-input-{{ . }}" />
+        <input type="text" name="participant-company-{{ . }}" id="participant-company-input-{{ . }}" />
       </div>
     </div>
 

templates/participant.html

@@ -1,12 +1,12 @@
 {{ define "participant" }}
 <div id="participant-{{ . }}">
   <label for="participant-first-input-{{ . }}">Vorname</label>
-  <input type="text" name="participant-first" id="participant-first-input-{{ . }}" />
+  <input type="text" name="participant-first-{{ . }}" id="participant-first-input-{{ . }}" />
 
   <label for="participant-last-input-{{ . }}">Nachname</label>
-  <input type="text" name="participant-last" id="participant-last-input-{{ . }}" />
+  <input type="text" name="participant-last-{{ . }}" id="participant-last-input-{{ . }}" />
 
   <label for="participant-company-input-{{ . }}">Firma</label>
-  <input type="text" name="participant-company" id="participant-company-input-{{ . }}" />
+  <input type="text" name="participant-company-{{ . }}" id="participant-company-input-{{ . }}" />
 </div>
 {{ end }}