如何运行Table_Print创业板作为独立创业板

Question

使用rails应用程序，我想利用印刷宝石，但我不允许在gem文件中安装一个新的gem。我看到有一个独立的版本，我应该能够直接安装在我的机器上，但我不知道如何使它工作。

当我调用tp Invoice.all时，我得到以下错误作为回报。

NoMethodError: main:Object的未定义方法“`tp”

我尝试过用以下代码的变体创建一个.irbrc文件，但没有joy。

# Outside rails
$ irb
> require 'table_print'
> tp array_of_objects, options

# Inside rails, the gem has already been required by your Gemfile so all you need to do is
$ rails c
> tp array_of_objects, options

是否有人获得了table_print的独立版本来使用rails c？

Answer 1

将数组直接传递到tp参数：

 ➩ ➩  irb
2.0.0-p645 :002 > require 'table_print'
 => true
2.0.0-p645 :003 > tp [{id: 1, first_name: "Tim", last_name: "Thing", email: "test@example.com", dob: "1985-01-01" },  {id: 2, first_name: "Rob", last_name: "Roberts", email: "test@example.com", dob: "1985-01-01"}, {id: 3, first_name: "Nancy", last_name: "Name", email: "test@example.com", dob: "1985-01-01"}]
ID | FIRST_NAME | LAST_NAME | EMAIL            | DOB
---|------------|-----------|------------------|-----------
1  | Tim        | Thing     | test@example.com | 1985-01-01
2  | Rob        | Roberts   | test@example.com | 1985-01-01
3  | Nancy      | Name      | test@example.com | 1985-01-01
 => 0.000762
2.0.0-p645 :004 >

或将数组保存为变量：

 ➩ ➩  irb
2.0.0-p645 :002 > require 'table_print'
 => true
2.0.0-p645 :004 > object = [{id: 1, first_name: "Tim", last_name: "Thing", email: "test@example.com", dob: "1985-01-01" },  {id: 2, first_name: "Rob", last_name: "Roberts", email: "test@example.com", dob: "1985-01-01"}, {id: 3, first_name: "Nancy", last_name: "Name", email: "test@example.com", dob: "1985-01-01"}]
=> [{:id=>1, :first_name=>"Tim", :last_name=>"Thing", :email=>"test@example.com", :dob=>"1985-01-01"}, {:id=>2, :first_name=>"Rob", :last_name=>"Roberts", :email=>"test@example.com", :dob=>"1985-01-01"}, {:id=>3, :first_name=>"Nancy", :last_name=>"Name", :email=>"test@example.com", :dob=>"1985-01-01"}]
2.0.0-p645 :005 > tp object
 ID | FIRST_NAME | LAST_NAME | EMAIL            | DOB
 ---|------------|-----------|------------------|-----------
 1  | Tim        | Thing     | test@example.com | 1985-01-01
 2  | Rob        | Roberts   | test@example.com | 1985-01-01
 3  | Nancy      | Name      | test@example.com | 1985-01-01
 => 0.001

没有错误的全部跟踪，这是我所能提供的全部帮助。希望能帮上忙！

-the NoMethodError使我认为table_print不喜欢您正在传递的ActiveRecord::Relation。也许尝试将Invoice.all.map(&:attributes)传递给tp