ruby-on-rails - 集合中任何元素为真

Question

我通过 organization_advisors 建立了 organizations 和 advisors 的关系。 organization_advisors 有一个字段是 is_verified。我想为某个特定的 organization 找到 is_verified 为 false 的任何 advisors。像这样的东西(这是行不通的)

<% unless @organization.advisors.is_verified.any? %>
    Approve Advisors
<% end %>

我也试过:

<% unless @organization.organization_advisors.is_verified.any? %>
    Approve Advisors
<% end %>

我需要知道 @organization 的顾问是否未is_verified。我该怎么做？

Answer 1

由于 is_verified 在 organization_advisers 中，检查它们是否存在就足够了:

<% unless @organization.organization_advisors.where(is_verified: false).any? %>
  Approve Advisors
<% end %>

我假设您具有以下结构:

class Organization
  has_many :organization_advisors
  has_many :advisors, through: :organization_advisors
end

class OrganizationAdvisor
  belongs_to :organization
  belongs_to :advisor
end

class Advisor
  has_many :organization_advisors
  has_many :organizations, through: :organization_advisors
end

另请参阅此处的类似问题:how to receive objects by condition in connecting table .