CODEWITHSUNDEEP
ruby-on-rails
Starkers
Starkers

Reputation: 10551

Debug models with the rails console

Not sure why this is happening:

2.0.0p247 :001 > User.column_names
 => ["id", "user_name", "email", "password_digest", "created_at", "updated_at", "register_key", "culminated", "remember_token", "register_token_created_at", "profile_image", "licence_image", "first_name", "last_name", "nearest_town"] 
2.0.0p247 :002 > user1 = User.create(user_name: 'james', email: '[email protected]', first_name:'jj', last_name:'jj', nearest_town:'mordor')
 => #<User id: nil, user_name: "james", email: "[email protected]", password_digest: nil, created_at: nil, updated_at: nil, register_key: nil, culminated: nil, remember_token: nil, register_token_created_at: nil, profile_image: nil, licence_image: nil, first_name: "jj", last_name: "jj", nearest_town: "mordor"> 
2.0.0p247 :003 > user1.update(user_name: 'killo')
 => false

Rather than a solution, how would you go about debugging this problem from the console?

Upvotes: 1

Views: 86

Answers (3)

Kirti Thorat
Kirti Thorat

Reputation: 53048

If you notice:

2.0.0p247 :002 > user1 = User.create(user_name: 'james', email: '[email protected]', first_name:'jj', last_name:'jj', nearest_town:'mordor')
 => #<User id: nil, user_name: "james", email: "[email protected]", password_digest: nil, created_at: nil, updated_at: nil, register_key: nil, culminated: nil, remember_token: nil, register_token_created_at: nil, profile_image: nil, licence_image: nil, first_name: "jj", last_name: "jj", nearest_town: "mordor">

User record (user1) was not created at all. User id is nil. You must be having some failed validations. If the record would have been successfully created in the database then your user id would never be nil as its the primary key.

Try with User.create! instead so you know that why the record was not created, you will get the exact exception raised. For example:

2.0.0p247 :002 > user1 = User.create!(user_name: 'james', email: '[email protected]', first_name:'jj', last_name:'jj', nearest_town:'mordor')

Upvotes: 2

Ryan-Neal Mes
Ryan-Neal Mes

Reputation: 6263

Seems like your object is not valid. As Kirti pointed out it has not been persisted to the database as no primary key id has been returned. Checking the validity of your object would give you more information on what is up with your object. Checkout rails guides for a breakdown of validation.

Upvotes: 0

Marek Lipka
Marek Lipka

Reputation: 51191

Your User record is not saved, probably because of failed validation. You should check its validity with: 

user1.valid?

and show errors:

user1.errors.full_messages

Upvotes: 3

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