Moonscript Lapis cached widget examle

app.moon

lapis = require "lapis"
db = require "lapis.db"
html = require "lapis.html"
queries = require "queries"
config = require("lapis.config").get!
widgets = require "views.widgets"
import get_redis from require "lapis.redis"
import render_html from require "lapis.html"
import notNil from require "utils"

query = (q, blog_id) ->
  return string.gsub q, '_#_', "_#{blog_id}_"

get_set_redis = (key, query, view) =>
  content = @redis\get key
  unless notNil content
    @query = query
    @view = view
    content = @view @query!
    @redis\set key, content
  return content

main_query = () =>
  @main_query_results = db.query(query(queries.main, @blog_id), 0, 40)

main_posts = () =>
  render_html ->
    div class: "body", ->
      for post in *@main_query_results
        div ->
          h2 post.post_title
          h3 post.post_excerpt
          post.post_read_more  


class App extends lapis.Application
  
  @before_filter =>
    @blog_id = config.blog.default
    blog = db.query queries.blog, @blog_id
    @blog = {row.blog_option_name, row.blog_option_title for i, row in ipairs blog}
    @redis = get_redis!
    @get_set_redis = get_set_redis

  [index: "/"]: =>
    content = @get_set_redis @req.parsed_url.path, main_query, main_posts
    {
      layout: false,
      content
    }

https://gist.github.com/honewatson/b29c34fe740b8e4af98053b57de64d7c