带有生态模板的 Backbone.js:如何在模板中包含模板? [英] Backbone.js with Eco Templates: How to include template within a template?

问题描述

是否可以在模板中包含模板?也许类似于 ERB 处理部分的方式?

Is it possible to include a template within a template? Maybe something similar to the way ERB handles partials?

与其尝试以 ERB 之类的方式渲染嵌套模型，不如让 Backbone.js 来处理.

Rather than attempting to render nested models in a fashion like ERB, it's better to let Backbone.js take care of this.

注意，我使用的是 coffeescript 语法:

Note, I am using coffeescript syntax:

Projects.IndexView

Projects.IndexView

template: JST["backbone/templates/projects/index"]

addAll: () ->
    @options.projects.each(@addOne)

addOne: (project) ->
    view = new Worktimer.Views.Projects.ProjectView({model : project})
    @$("#projects-table").append(view.render().el)

render: ->
    $(@el).html(@template(projects: @options.projects.toJSON() ))
    @addAll()

模型项目有一个称为会话的嵌套集合:

the model Project has a nested collection called sessions:

Projects.ProjectView

Projects.ProjectView

template: JST["backbone/templates/projects/project"]

$(@el).html(@template(@model.toJSON() ))     
for s in @model.sessions.models
    v = new Worktimer.Views.ProjectSessions.ShowView(model: s)
    $(@el).find('.sessions').append(v.render().el)

ProjectSessions.ShowView

ProjectSessions.ShowView

template: JST["backbone/templates/project_sessions/show"]

render: ->
    $(this.el).html(@template(@model.toJSON() ))

所以，最后我们有这样的嵌套模板:

so, in the end we have nested templates like this:

• 项目索引
  • 项目
    • 会议
    • 会议
    • 会议
    • 会议
    • 会议
    • 会议
    • 会议

    推荐答案

    这里有一个小帮手我用在spine上:

    here a little helper I use for spine:

    # Render Partials in ECO-Templates like in Rails-ERB
    # 
    # usefull to clean up structure in spine.js and other js-mvc´s like backbone 
    # 
    # usage:
    #   <%- render_partial 'path/to/partial' %>  ..  will render ../spine-app/views/path/to/_partial.jst.eco
    #   <%- render_partial 'path/to/partial', foo: 'bar' %>  ..  will render ../spine-app/views/path/to/_partial.jst.eco  ..  locals = @foo 
    #
    window.render_partial = ( path, options = {} ) ->
        # add the leading underscore (like rails-partials)
        path = path.split('/')
        path[ path.length - 1 ] = '_' + path[ path.length - 1 ]
        path = path.join('/')
        # render and return the partial if existing
        try
            JST["app/views/#{ path }"]( options )
        catch error
            # if App.Environment != 'production' then "<p class='error'>Sorry, there is no partial named '#{ path }'.</p>" else ''
            "<p class='error'>Sorry, there is no partial named '#{ path }'.</p>"
    

    这篇关于带有生态模板的 Backbone.js:如何在模板中包含模板?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！