Add ability to delete articles

src/templates/src/education_article_delete.html

@@ -0,0 +1,15 @@
+{{ template "base.html" . }}
+
+{{ define "content" }}
+<div class="mw7 margin-center">
+    <h3 class="mb3">Are you sure you want to delete this article?</h3>
+    <div class="bg--dim pa3 br3 tl post-content">
+        <h1>{{ .Article.Title }}</h1>
+        {{ .Article.Content }}
+    </div>
+    <form action="{{ .SubmitUrl }}" method="POST" class="pv3 flex justify-end">
+        {{ csrftoken .Session }}
+        <input type="submit" value="Delete Article">
+    </form>
+</div>
+{{ end }}

src/website/education.go

@@ -191,13 +191,39 @@ func EducationArticleEditSubmit(c *RequestContext) ResponseData {
 }
 
 func EducationArticleDelete(c *RequestContext) ResponseData {
-	// TODO
-	panic("not implemented yet")
+	article, err := fetchEduArticle(c, c.Conn, c.PathParams["slug"], 0)
+	if errors.Is(err, db.NotFound) {
+		return FourOhFour(c)
+	} else if err != nil {
+		panic(err)
+	}
+
+	type deleteData struct {
+		templates.BaseData
+		Article   templates.EduArticle
+		SubmitUrl string
+	}
+
+	baseData := getBaseData(c, fmt.Sprintf("Deleting \"%s\"", article.Title), nil)
+
+	var res ResponseData
+	res.MustWriteTemplate("education_article_delete.html", deleteData{
+		BaseData:  baseData,
+		Article:   templates.EducationArticleToTemplate(article),
+		SubmitUrl: hmnurl.BuildEducationArticleDelete(article.Slug),
+	}, c.Perf)
+	return res
 }
 
 func EducationArticleDeleteSubmit(c *RequestContext) ResponseData {
-	// TODO
-	panic("not implemented yet")
+	_, err := c.Conn.Exec(c, `DELETE FROM education_article WHERE slug = $1`, c.PathParams["slug"])
+	if err != nil {
+		panic(err)
+	}
+
+	res := c.Redirect(hmnurl.BuildEducationIndex(), http.StatusSeeOther)
+	res.AddFutureNotice("success", "Article deleted.")
+	return res
 }
 
 func fetchEduArticle(ctx context.Context, dbConn db.ConnOrTx, slug string, t models.EduArticleType) (*models.EduArticle, error) {

src/website/routes.go

@@ -126,7 +126,7 @@ func NewWebsiteRoutes(conn *pgxpool.Pool) http.Handler {
 	hmnOnly.GET(hmnurl.RegexEducationArticleEdit, educationAuthorsOnly(EducationArticleEdit))
 	hmnOnly.POST(hmnurl.RegexEducationArticleEdit, educationAuthorsOnly(EducationArticleEditSubmit))
 	hmnOnly.GET(hmnurl.RegexEducationArticleDelete, educationAuthorsOnly(EducationArticleDelete))
-	hmnOnly.POST(hmnurl.RegexEducationArticleDelete, educationAuthorsOnly(EducationArticleDeleteSubmit))
+	hmnOnly.POST(hmnurl.RegexEducationArticleDelete, educationAuthorsOnly(csrfMiddleware(EducationArticleDeleteSubmit)))
 
 	hmnOnly.POST(hmnurl.RegexAPICheckUsername, csrfMiddleware(APICheckUsername))