[ruby on rails]一些常用的gems
一些好的gem推荐：https://ruby-china.org/wiki/gems
1. 图形验证码
rucaptcha
使用方法：http://docs.qzy.camp/docs/使用gem-rucaptcha
2. 计算网页浏览量
impressionist: https://github.com/charlotte-ruby/impressionist
3. 分页
pagy: https://ddnexus.github.io/pagy/how-to
kaminari: https://github.com/kaminari/kaminari
kaminari设置中文显示：在en.yml中en后面添加
views:
pagination:
first: "« 首页"
last: "末页 »"
previous: "« 上一页"
next: "下一页 »"
truncate: "..."
4. 富文本编辑器
ckeditor: https://github.com/galetahub/ckeditor
5. console美观适合人看
awesome_rails_console: https://github.com/ascendbruce/awesome_rails_console
6. 高效读取excel
creek：https://github.com/pythonicrubyist/creek
roo: https://github.com/roo-rb/roo
7. 导出excel、csv
spreadsheet_architect: https://github.com/westonganger/spreadsheet_architect
用法：
（1）在ApplicationRecord中加入 include SpreadsheetArchitect
class ApplicationRecord < ActiveRecord::Base
include SpreadsheetArchitect
end
（2）在model中定义spreadsheet_columns方法，同时设置导出到excel中的格式
class Movie < ApplicationRecord
def spreadsheet_columns
[
['Id', :id],
['标题', :title],
['时间', :created_at]
]
end
SPREADSHEET_OPTIONS = {
spreadsheet_columns: :spreadsheet_columns,
header_style: {background_color: 'AAAAAA', color: 'FFFFFF', align: :center, font_name: 'Arial', font_size: 10, bold: true, italic: false, underline: false},
row_style: {background_color: nil, color: '000000', align: :left, font_name: 'Arial', font_size: 10, bold: false, italic: false, underline: false},
sheet_name: self.name,
column_styles: [],
range_styles: [],
conditional_row_styles: [],
merges: [],
borders: [],
column_types: [],
}
end
（3）controller中使用
def index
@movies = Movie.where.not("title = ?", '')
respond_to do |format|
format.html
format.xlsx {render xlsx: @movies , filename:"movies-#{Time.now.to_s}"}
end
end
（4）下载excel
#在view中
<%= link_to 'download',index_movies_path %>
8. 表单
simple_form: https://github.com/plataformatec/simple_form
9. 图标
bootstrap: https://github.com/twbs/bootstrap-sass
fontawesome:http://www.fontawesome.com.cn/get-started/
gem ‘jquery-rails’
gem ‘bootstrap-sass’
gem ‘font-awesome-sass’
#application.scss
@import "bootstrap-sprockets";
@import 'bootstrap';
@import "font-awesome-sprockets";
@import "font-awesome";
#devise中让notice的样式继承alert-success,让alert样式继承alert-danger
.alert-notice{
@extend .alert-success;
}
.alert-alert{
@extend .alert-danger;
}
#application.js
//= require jquery
//= require bootstrap-sprockets
#提交表单时候有个转圈图标
<%= f.button "确认", data:{ disable_with: "<span class='fa fa-spinner fa-spin'></span>请稍等..." } %>
10. 自定义排列顺序acts_as_list
用法：在需要自定义排序的model添加position栏位
class AddPositionToEvents < ActiveRecord::Migration[5.0]
def change
add_column :events, :position, :integer
end
add_index :events, :position
Event.order(:updated_at).each.with_index(1) do |event, index|
event.update_column :position, index
end
end
在model中加入acts_as_list
class Event < ApplicationRecord
acts_as_list
end
routes中添加路由
resources :events do
collection do
post :bulk_update
end
member do
patch :move_up
patch :move_down
end
end
controller中添加move_up ， move_down
def move_up
@event = Event.find(params[:id])
@event.move_higher
flash[:success] = 'move up success'
redirect_to admin_events_path
end
def move_down
@event = Event.find(params[:id])
@event.move_lower
flash[:success] = 'move down success'
redirect_to admin_events_path
end
view中添加按钮
<%= link_to 'move Up', move_up_admin_event_path(event), method: :patch,class:'btn btn-default' %>
<%= link_to 'move Down', move_down_admin_event_path(event), method: :patch,class:'btn btn-default' %>
11. 拖拉UI
gem ‘jquery-ui-rails’
12. 赞、喜欢、收藏、关注、订阅、屏蔽等 action-store
13. 用户通知 notifications
14. http抓包 rest-client 配合nokogiri使用
#rest-clent
https://github.com/rest-client/rest-client
#nokogiri
https://github.com/sparklemotion/nokogiri
15. 检查N+1查询 bullet
用法：
gem 'bullet', group: 'development'
rails g bullet:install
#config/environments/development.rb
config.after_initialize do
Bullet.enable = true
Bullet.alert = true
end
16. 代码质量分析 rubycritic
17. 代码质量风格分析 按ruby风格指南分析 rubocop
18. pdf生成器 prawn
19. 生成现有数据关系 rails-erd