BikeBikeBike/app/models/organization.rb

class Organization < ActiveRecord::Base
  mount_uploader :logo, LogoUploader
  mount_uploader :avatar, AvatarUploader
  mount_uploader :cover, CoverUploader

  has_many :locations_organization
  has_many :locations, through: :locations_organization

  has_many :user_organization_relationships, dependent: :destroy
  has_many :users, through: :user_organization_relationships

  accepts_nested_attributes_for :locations, :reject_if => proc {|l| l[id].blank?}
  accepts_nested_attributes_for :user_organization_relationships, :reject_if => proc {|u| u[:user_id].blank?}, :allow_destroy => true
  before_create :make_slug

  def location
    locations.first
  end

  def longitude
    location.longitude
  end

  def latitude
    location.latitude
  end

  def to_param
    slug
  end

  def host?(user)
    return false unless user.present?
    return true if user.administrator?
    
    users.each do |u|
      return true if u.id == user.id
    end
    return false
  end

  def generate_slug(name, location = nil)
    s = name.gsub(/[^a-z1-9]+/i, '-').chomp('-').gsub(/\-([A-Z])/, '\1')
    if Organization.find_by(:slug => s).present? && !location.nil?
      if location.city.present?
        s += '-' + location.city
      end
      if Organization.find_by(:slug => s).present? && location.territory.present?
        s += '-' + location.territory
      end
      if Organization.find_by(:slug => s).present?
        s += '-' + location.country
      end
    end
    attempt = 1
    ss = s

    while Organization.find_by(:slug => s)
      attempt += 1
      s = ss + '-' + attempt.to_s
    end
    s
  end

  def self.find_by_city(city)
    Organization.joins(:locations).where(locations: {
        city_id: city.is_a?(City) ? city.id : city
      })
  end

  private
    def make_slug
      if !self.slug
        self.slug = generate_slug(self.name, self.locations && self.locations[0])
      end
    end
end