example

test.rb

=> #<DialogFieldDropDownList:0x00563c68b6d3c0                      
 id: 10000000005919,             
 name: "dropdown_list_1",        
 description: "",                
 type: "DialogFieldDropDownList",
 data_type: "string",            
 notes: nil,                     
 notes_display: nil,             
 display: "edit",                
 display_method: nil,            
 display_method_options: {},     
 required: false,                
 required_method: nil,           
 required_method_options: {},    
 default_value: "[[\"aaaa\", \"aaaa\"], [\"ssss\", \"ssss\"]]",    
 values: [["aaaa", "aaaa"], ["ssss", "ssss"], ["dddd", "dddd"], ["ffff", "ffff"]],                                                    
 values_method: nil,             
 values_method_options: {},      
 options: {:sort_by=>"description", :sort_order=>"ascending", :force_multi_value=>true},                                              
 created_at: Mon, 04 Dec 2017 14:08:50 UTC +00:00,                 
 updated_at: Mon, 04 Dec 2017 14:08:50 UTC +00:00,                 
 label: "Dropdown",              
 dialog_group_id: 10000000001987,
 position: 8,                    
 validator_type: nil,            
 validator_rule: nil,            
 reconfigurable: false,          
 dynamic: false,                 
 show_refresh_button: false,     
 load_values_on_init: false,     
 read_only: false,               
 auto_refresh: false,            
 trigger_auto_refresh: false,    
 visible: true>                  

[11] pry(main)> a.default_value  
=> "[[\"aaaa\", \"aaaa\"], [\"ssss\", \"ssss\"]]"                  


[12] pry(main)> a.default_value = '[["aaaa", "aaaa"], ["ssss", "ssss"], ["dddd", "dddd"], ["ffff", "ffff”]]'                          
=> "[[\"aaaa\", \"aaaa\"], [\"ssss\", \"ssss\"], [\"dddd\", \"dddd\"], [\"ffff\", \"ffff”]]"   
                                       
[13] pry(main)> a.save!          
   (0.2ms)  BEGIN                
  SQL (0.4ms)  UPDATE "dialog_fields" SET "default_value" = $1, "updated_at" = $2 WHERE "dialog_fields"."id" = $3  [["default_value", "[[\"aaaa\", \"aaaa\"], [\"ssss\", \"ssss\"], [\"dddd\", \"dddd\"], [\"ffff\", \"ffff”]]"], ["updated_at", "2017-12-04 14:31:02.638125"], ["id", 10000000005919]]
   (3.3ms)  COMMIT               
=> true                         
 
[14] pry(main)> DialogField.last                                                                                                      
  DialogField Load (0.5ms)  SELECT  "dialog_fields".* FROM "dialog_fields" ORDER BY "dialog_fields"."id" DESC LIMIT $1  [["LIMIT", 1]]  ResourceAction Load (0.3ms)  SELECT  "resource_actions".* FROM "resource_actions" WHERE "resource_actions"."resource_id" = $1 AND "resource_actions"."resource_type" = $2 LIMIT $3  [["resource_id", 10000000005919], ["resource_type", "DialogField"], ["LIMIT", 1]]
  ResourceAction Inst Including Associations (0.1ms - 1rows)       
  DialogField Inst Including Associations (2.4ms - 1rows)          
=> #<DialogFieldDropDownList:0x00563c688671d0                      
 id: 10000000005919,             
 name: "dropdown_list_1",        
 description: "",                
 type: "DialogFieldDropDownList",
 data_type: "string",            
 notes: nil,                     
 notes_display: nil,             
 display: "edit",                
 display_method: nil,            
 display_method_options: {},     
 required: false,                
 required_method: nil,           
 required_method_options: {},    
 default_value: "[[\"aaaa\", \"aaaa\"], [\"ssss\", \"ssss\"], [\"dddd\", \"dddd\"], [\"ffff\", \"ffff”]]",                            
 values: [["aaaa", "aaaa"], ["ssss", "ssss"], ["dddd", "dddd"], ["ffff", "ffff"]],                                                    
 values_method: nil,             
 values_method_options: {},      
 options: {:sort_by=>"description", :sort_order=>"ascending", :force_multi_value=>true},                                              
 created_at: Mon, 04 Dec 2017 14:08:50 UTC +00:00,                 
 updated_at: Mon, 04 Dec 2017 14:31:02 UTC +00:00,                 
 label: "Dropdown",              
 dialog_group_id: 10000000001987,
 position: 8,                    
 validator_type: nil,            
 validator_rule: nil,            
 reconfigurable: false,          
 dynamic: false,                 
 show_refresh_button: false,     
 load_values_on_init: false,     
 read_only: false,               
 auto_refresh: false,            
 trigger_auto_refresh: false,    
 visible: true>