如何从控制台获取所有表列作为Rails中的哈希？

Question

The following code returns the table-names How do I get the individual column names within the table?

ActiveRecord::Base.connection.tables
 #=> ["products","listings"]

How do I get: Products.< all columns >

Answer 1

In Rails, the active record class of a table name is the singular form, and capitalized.

So to get the columns for the products table, you would use:

Product.column_names

This provides an array of all the column names for the table represented by the ActiveRecord object, Product .