找到数组元素

Question

I have an array

@words = Word.find_all_by_lesson_id(params[:id]) - @user.words

and want to find one element by word_id, something like

@current_word = @words[params[:id2].to_i]

where params[:id2] is words.id

Of course it's wrong, because the arrays index is not the same as words.id , so how can I do it correct?

OR

can you advice me on how to work with the model if I want to exclude some records from it?

Answer 1

@current_word = @words.detect{|w| w.id == params[:id2]}