如何在Rails中发现模型属性？ [英] How do you discover model attributes in Rails?

问题描述

我发现很难轻松查看所有模型类中存在哪些属性/属性，因为它们未在我的类文件中明确定义。

I am finding it difficult to easily see what attributes/properties exist on all of my model classes since they are not explicitly defined in my class files.

要发现模型属性，我保持schema.rb文件打开，并在它和需要编写的任何代码之间进行切换。这行得通，但是很麻烦，因为我必须在读取模式文件以选择属性，在模型类文件以检查方法以及我编写的用于调用属性&的任何新代码之间切换。方法。

To discover model attributes, I keep the schema.rb file open and flip between it and whatever code I'm writing as needed. This works but is clunky because I have to switch between reading the schema file to pick up attributes, the model class file to check methods, and whatever new code that I'm writing to call attributes & methods.

我的问题是，当您第一次分析Rails代码库时，如何发现模型属性？您是否始终将schema.rb文件保持打开状态，还是有一种更好的方法不涉及在架构文件和&模型文件不断？

My question is, how do you discover model attributes when you're analyzing a Rails codebase for the first time? Do you keep the schema.rb file open all the time, or is there a better way that doesn't involve jumping between schema file & model file constantly?

推荐答案

用于与架构相关的内容

Model.column_names         
Model.columns_hash         
Model.columns 

AR对象中的实例变量/属性

For instance variables/attributes in an AR object

object.attribute_names                    
object.attribute_present?          
object.attributes

例如没有从超类继承的实例方法

For instance methods without inheritance from super class

Model.instance_methods(false)

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