CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-4
Randomtheories
Randomtheories

Reputation: 1290

Find_by returns first record

When using find_by and just supplying an id param, find_by returns the first entry in the table.

E.g.

@article = Article.find_by(params[:article_id])

returns article with id = 1 while using find gives me the article with id = :article_id

Can somebody explain why find_by returns the record with the first id?

Upvotes: 1

Views: 1096

Answers (2)

m0rem0rem0re
m0rem0rem0re

Reputation: 149

You can also try @article = Article.find_by(:id => params[:article_id])

Upvotes: 0

Rahul Singh
Rahul Singh

Reputation: 3427

Using the find method, you can retrieve the object corresponding to the specified primary key that matches any supplied options.

so this is correct syntax

@article = Article.find(params[:article_id])

while The find_by method finds the first record matching some conditions

so you should write 

@article = Article.find_by(id:params[:article_id])

source:http://guides.rubyonrails.org/active_record_querying.html

Upvotes: 5

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