rails 将字符串的起始字母大写并将下划线转化为空格

Capitalizes the first word, turns underscores into spaces, and strips‘_id’. Liketitleize, this is meant forcreating pretty output.

  "employee_salary" # => "Employee salary""author_id"       # => "Author"serialize(attr_name, class_name = Object)    
    
  
     
If you have an attribute that needs to be saved to the database as anobject, and retrieved as the same object, then specify the name of thatattribute using this method and it will be handled automatically. Theserialization is done through YAML. If class_name is specified,the serialized object must be of that class on retrieval or SerializationTypeMismatch will beraised.
     
Parameters
     

      
attr_name - The field name that should be serialized.
      
class_name - Optional, class name that the object type should beequal to.
     
     
Example
     
  # Serialize a preferences attributeclass Userserialize :preferencesend