rails find_by
Post.find_by name: 'Spartacus', rating: 4
Post.find_by "published_at < ?", 2.weeks.agorails find_by
Post.find_by name: 'Spartacus', rating: 4
Post.find_by "published_at < ?", 2.weeks.agoself.find_by_id
def self.find_by_id(id)
sql = <<-SQL
SELECT * FROM dogs WHERE id = ?
SQL
DB[:conn].execute(sql, id).map(){|row|
self.new_from_db(row)
}.first
endCopyright © 2021 Codeinu
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