7

我对 Clojure 和 Compojure Web 开发比较陌生。在我正在构建的玩具示例中,我注意到的第一个问题是 HTML 模板问题。我想支持 Rails 中的部分内容,或 Django 使用的模板框架。

目前我有:

(defn index-page []
(html5
    [:head
        [:title "Home | Compojure Docs"]
        (include-css "/css/bootstrap.min.css")
        (include-css "/css/bootstrap-responsive.min.css")]
    [:body
        [:div {:class "container-fluid"}
            [:div {:class "row-fluid"}
                [:div {:class "span2 menu"}]
                [:div {:class "span10 content"}
                    [:h1 "Compojure Docs"]
                    [:ul
                        [:li
                            [:a {:href "/getting-started"} "Getting Started"]]
                        [:li
                            [:a {:href "/routes-in-detail"} "Routes in Detail"]]
                        [:li
                            [:a {:href "/destructuring-syntax"} "Destructuring Syntax"]]
                        [:li
                            [:a {:href "/nesting-routes"} "Nesting Routes"]]
                        [:li
                            [:a {:href "/api-documentation"} "API Documentation"]]
                        [:li
                            [:a {:href "/paas-platforms"} "PaaS Platforms"]]
                        [:li
                            [:a {:href "/example-project"} "Example Project"]]
                        [:li
                            [:a {:href "/example-project-on-cloudbees"} "Example Project on CloudBees"]]
                        [:li
                            [:a {:href "/interactive-development-with-ring"} "Interactive Development with Ring"]]
                        [:li
                            [:a {:href "/emacs-indentation"} "Emacs Indentation"]]
                        [:li
                            [:a {:href "/sessions"} "Sessions"]]
                        [:li
                            [:a {:href "/common-problems"} "Common Problems"]]]
                    (include-js "/js/jquery-1.9.1.min.js")
                    (include-js "/js/bootstrap.min.js")]]]]))

(defn routes-in-detail []
(html5
    [:head
        [:title "Routes in Detail | Compojure Docs"]
        (include-css "/css/style.css")]
    [:body
        [:h1 "Routes in Detail"]]))

有没有不重复代码的好方法?我希望 HEAD 标记中的内容在它自己的模板文件或函数中,然后能够在我去的时候包含它。例如,我想将它包含在“详细路线”功能中。我看过 Enlive,但我不确定如何将它与 Hiccup 一起使用。任何关于最佳实践的想法都将不胜感激。

4

2 回答 2

11

您可以将部分标记拉出到单独的变量中:

(def head
  [:head
    [:title "Home | Compojure Docs"]
    (include-css "/css/bootstrap.min.css")
     ... ])

(defn routes-in-detail []
  (html5
    head
    [:body
      ... ]))

如果您需要您的片段/部分来获取参数,您可以将其变成一个函数,例如:

(defn head [title]
  [:head
    [:title title]
    (include-css "/css/bootstrap.min.css")
     ... ])

(defn routes-in-detail []
  (html5
    (head "Routes in detail")
    ... ))

有时您会希望您的“片段”由多个顶级元素组成,而不是单个元素。在这种情况下,您可以将它们包装在一个列表中 - hiccup 将内联扩展它:

(defn head-contents [title]
  (list [:title title]
        (include-css "/css/bootstrap.min.css")
        ... )))

(defn routes-in-detail []
  (html5
    [:head (head-contents "Routes in detail")]
    [:body ... ]))

一旦您意识到打嗝标记是由普通的 clojure 数据结构构成的事实,您就会发现使用函数操作/构建它既简单又灵活。

于 2013-03-13T15:32:44.607 回答
0

有一个名为的新模板库clabango,它以 Django 模板库为模型,它可能就是您所关注的:https ://github.com/danlarkin/clabango

于 2013-03-15T00:25:26.517 回答