Ruby on Rails 2在哈希中搜索字符串 [英] Ruby on Rails 2 search string in Hash

问题描述

我需要这方面的帮助......

我有这样的散列：

  @ingredients = Hash.new 
 @ingredients [1] =Biscottes Mini（recondo）
 @ingredients [2] =Abadejo
 @ingredients [ 3] =Acelga
 @ingredients [4] =Agua de Coco
 @ingredients [5] =Ajo
 @ingredients [6] =Almidónde Arroz
 @ ingredients [7] =Anillos Con Avena Integral cheerios（nestle）
 @ingredients [8] =Apio
  

当我编写scotte时，为了找到Biscottes Mini（recondo），我需要搜索那个哈希。

一些帮助？

Thk！

解决方案

哈希在这里，而不是一个数组？您不会使用除整数以外的其他键。

无论如何，此解决方案适用于Array和Hashes：

  search_term ='scotte'
＃您也可以使用find_all而不是选择
 search_results = @ ingredients.select {| key，val | val.include？（search_term）} 
 puts search_results.inspect 
  

请参阅 http://ruby-doc.org/core/classes/Enumerable.html#M001488

I need help with this...

I have a hash like this:

@ingredients = Hash.new
@ingredients[1] = "Biscottes Mini(recondo)"
@ingredients[2] = "Abadejo"
@ingredients[3] = "Acelga"
@ingredients[4] = "Agua de Coco"
@ingredients[5] = "Ajo"
@ingredients[6] = "Almidón de Arroz"
@ingredients[7] = "Anillos Con Avena Integral cheerios (nestle)"
@ingredients[8] = "Apio"

I need to search into that hash in order to find "Biscottes Mini(recondo)" when I write "scotte"

Some help?

Thk!

解决方案

Why do you use a Hash here and not an Array? You do not seem to use other keys than integers.

Anyway, this solution works for both Array and Hashes:

search_term = 'scotte'
# you could also use find_all instead of select
search_results = @ingredients.select { |key, val| val.include?(search_term) } 
puts search_results.inspect

See http://ruby-doc.org/core/classes/Enumerable.html#M001488

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