布爾行爲不正確

Question

我在做一個AJAX調用此方法

def check_solution 
    puzzle = Puzzle.find(params[:id]) 
    solved = puzzle.grid.solution == params[:solution].to_s 
    solved_before = params[:solved_before] 

    puts !solved_before 

    if(solved && !solved_before) 
     Puzzle.find(params[:id]).increment!(:times_solved, by =1) 
    end 


    respond_to do |format| 
     response = { :status => "ok", :message => "Success!", :html => solved} 
     format.json { render json: response } 
    end 
    end 

從我的本地服務器要在參數

Parameters: {"solution"=>"0001000010110011001100000", "solved_before"=>"false", "id"=>"3758"} 

爲什麼，當我打印出來！與看跌期權solved_before ，它是否認爲錯誤而不是真實？

Answer 1

這是因爲solved_before作爲字符串而不是布爾值。