working the get statement

snippetbox/cmd/web/handlers.go

@@ -1,10 +1,13 @@
 package main
 
 import (
+	"errors"
 	"fmt"
 	"html/template"
 	"net/http"
 	"strconv"
+
+	"gitea.wagshome.duckdns.org/nathan/golearn/internal/models"
 )
 
 func (app *application) home(w http.ResponseWriter, r *http.Request) {
@@ -34,7 +37,16 @@ func (app *application) snippetView(w http.ResponseWriter, r *http.Request) {
 		app.notFound(w)
 		return
 	}
-	fmt.Fprintf(w, "Display a specific snippet with ID %d...", id)
+	snippet, err := app.snippets.Get(id)
+	if err != nil {
+		if errors.Is(err, models.ErrNoRecord) {
+			app.notFound(w)
+		} else {
+			app.serverError(w, err)
+		}
+		return
+	}
+	fmt.Fprintf(w, "%+v", snippet)
 }
 func (app *application) snippetCreate(w http.ResponseWriter, r *http.Request) {
 	if r.Method != "POST" {
@@ -42,5 +54,13 @@ func (app *application) snippetCreate(w http.ResponseWriter, r *http.Request) {
 		app.clientError(w, http.StatusMethodNotAllowed)
 		return
 	}
-	w.Write([]byte("Create a new snippet"))
+	title := "0 Snail"
+	content := "O snail\nClimb Mount Fuji,\nBut slowly, slowly!\n\n– Kobayashi Issa"
+	expires := 7
+	id, err := app.snippets.Insert(title, content, expires)
+	if err != nil {
+		app.serverError(w, err)
+		return
+	}
+	http.Redirect(w, r, fmt.Sprintf("/snippet/view?id=%d", id), http.StatusSeeOther)
 }

snippetbox/internal/models/errors.go

@@ -0,0 +1,7 @@
+package models
+
+import (
+	"errors"
+)
+
+var ErrNoRecord = errors.New("models: no matchin record found")

snippetbox/internal/models/snippets.go

@@ -2,6 +2,7 @@ package models
 
 import (
 	"database/sql"
+	"errors"
 	"time"
 )
 
@@ -18,11 +19,31 @@ type SnippetModel struct {
 }
 
 func (m *SnippetModel) Insert(title string, content string, expires int) (int, error) {
-	return 0, nil
+	stmt := `INSERT INTO snippets (title, content,created,expires) VALUES( ?,?, UTC_TIMESTAMP(), DATE_ADD(UTC_TIMESTAMP(), INTERVAL ? DAY))`
+	result, err := m.DB.Exec(stmt, title, content, expires)
+	if err != nil {
+		return 0, err
+	}
+	id, err := result.LastInsertId()
+	if err != nil {
+		return 0, err
+	}
+	return int(id), nil
 }
 
 func (m *SnippetModel) Get(id int) (*Snippet, error) {
-	return nil, nil
+	stmt := `SELECT id, title, content, created, expires FROM snippets WHERE expires > UTC_TIMESTAMP() and id = ?`
+	row := m.DB.QueryRow(stmt, id)
+	s := &Snippet{}
+	err := row.Scan(&s.ID, &s.Title, &s.Content, &s.Created, &s.Expires)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, ErrNoRecord
+		} else {
+			return nil, err
+		}
+	}
+	return s, nil
 }
 
 func (m *SnippetModel) Latest() ([]*Snippet, error) {