我仍然是Rails的学习者,正在制作一个Google Adwords模拟游戏,用于培训。在游戏内部(我可能只解释这个问题的相关部分),我有三个模型,广告组(在我的代码中称为KeywordAdgroup),关键字,AdgroupKeyword ,以及一个游戏模型,里面有一个game_id。
这三个模型的关系是has_many through:
个关联,Adgroup通过AdgroupKeyword有很多关键字,而关键字通过AdgroupKeyword有很多Adgroup。
现在,我想采用一种逻辑,即每个关键字只能添加到特定游戏的单个广告组中。所以我在连接模型中添加了一个额外的属性game_id
- AdgroupKeyword,并在此模型中采用validates_uniqueness_of :keyword_id, scope: :game_id
。
但是,我发现使用类似的代码,我可以使用.save
方法验证Create中的唯一性,但我无法使用.update(params)
方法验证Update中的唯一性。
主要问题是,使用create
和update
中的类似代码,创建一个代码可以save
game_id
加入模型(AdgroupKeyword),其中update(params)
没有将game_id
保存到连接模型,在控制台中,我可以看到update
没有将game_id插入到记录中。
它会变成game_id: nil
:
#<AdgroupKeyword id: 180, keyword_id: 9, created_at: "2016-12-04 11:12:00", updated_at: "2016-12-04 11:12:00", keyword_adgroup_id: 77, game_id: nil>
但是save方法确实插入了game_id,当使用save方法插入时,game_id不是nil。 像
这样的东西#<AdgroupKeyword id: 174, keyword_id: 10, created_at: "2016-12-04 10:23:50", updated_at: "2016-12-04 10:23:50", keyword_adgroup_id: 77, game_id: 3>
以下是我的代码:
keyword_adgroup.rb (广告组模型)
class KeywordAdgroup < ApplicationRecord
belongs_to :keyword_campaign
has_many :adgroup_keywords, inverse_of: :keyword_adgroup, dependent: :destroy
has_many :keywords, through: :adgroup_keywords, source: :keyword
accepts_nested_attributes_for :adgroup_keywords, allow_destroy: true
...
accepts_nested_attributes_for :keywords
...
...
end
keyword.rb
class Keyword < ApplicationRecord
...
...
has_many :keyword_adgroups, through: :adgroup_keywords
has_many :adgroup_keywords
...
end
adgroup_keyword.rb (加入模式)
class AdgroupKeyword < ApplicationRecord
belongs_to :keyword_adgroup
belongs_to :keyword
validates_uniqueness_of :keyword_id, scope: :game_id
end
主要是关系将在Adgroup控制器中构建。
adgroups_controller.rb
class Adwords::AdgroupsController < AdwordsController
def index
...
end
def new
@adgroup = KeywordAdgroup.new
end
def create
@campaign = current_user.game.keyword_campaigns.find(params[:keyword_campaign_id])
@adgroup = @campaign.keyword_adgroups.build(adgroup_params)
@adgroup.game_id = @campaign.game_id
@adgroup.adgroup_keywords.each do |join|
join.game_id = @adgroup.game_id
end
if @adgroup.save
redirect_to new_adwords_ad_path(keyword_adgroup_id: @adgroup.id)
else
render :new
end
end
def edit
@adgroup = KeywordAdgroup.find(params[:id])
end
def update
@adgroup = KeywordAdgroup.find(params[:id])
@campaign = @adgroup.keyword_campaign
@adgroup.game_id = @campaign.game_id
@joins = @adgroup.adgroup_keywords
@joins.each do |join|
join.game_id = @adgroup.game_id
end
if @adgroup.update(adgroup_params)
redirect_to adwords_adgroups_path, notice: "Adgroup updated"
else
render :edit
end
end
...
private
def adgroup_params
params.require(:keyword_adgroup).permit(:name, :activate, :bid, keyword_ids: [], adgroup_keywords_attributes: [:game_id])
end
end
在任何广告组中的同一游戏中选择重复关键字时,在&#34;创建&#34;中,它将进行回滚;在&#34;更新&#34;中,它只会使用game_id: nil
更新记录。
仅供参考,我使用Ruby 2.3.0,Rails 5.0.0,并使用simpleform创建和更新广告组。
我知道它有点乱,抱歉,感谢阅读我的话。感谢任何建议。已经花了几个小时来修复它,但在经过很多不同的方法之后真的没有希望了。认为这是一个我无法理解的概念性问题。
更新信息
检查控制台时,在&#34;创建&#34;方法,它会来:
AdgroupKeyword Exists (0.4ms) SELECT 1 AS one FROM "adgroup_keywords" WHERE "adgroup_keywords"."keyword_id" = ? AND "adgroup_keywords"."game_id" = ? LIMIT ? [["keyword_id", 14], ["game_id", 3], ["LIMIT", 1]]
Keyword Exists (0.3ms) SELECT 1 AS one FROM "keywords" WHERE "keywords"."keyword" = ? AND ("keywords"."id" != ?) LIMIT ? [["keyword", "Japan local trip"], ["id", 14], ["LIMIT", 1]]
KeywordAdgroup Exists (0.2ms) SELECT 1 AS one FROM "keyword_adgroups" WHERE "keyword_adgroups"."name" = ? AND "keyword_adgroups"."keyword_campaign_id" = ? LIMIT ? [["name", "3"], ["keyword_campaign_id", 36], ["LIMIT", 1]]
SQL (2.3ms) INSERT INTO "keyword_adgroups" ("name", "activate", "bid", "created_at", "updated_at", "keyword_campaign_id", "game_id") VALUES (?, ?, ?, ?, ?, ?, ?) [["name", "3"], ["activate", true], ["bid", #<BigDecimal:7fcaac52c320,'0.1E1',9(18)>], ["created_at", 2016-12-04 13:10:19 UTC], ["updated_at", 2016-12-04 13:10:19 UTC], ["keyword_campaign_id", 36], ["game_id", 3]]
SQL (0.2ms) INSERT INTO "adgroup_keywords" ("keyword_id", "created_at", "updated_at", "keyword_adgroup_id", "game_id") VALUES (?, ?, ?, ?, ?) [["keyword_id", 14], ["created_at", 2016-12-04 13:10:19 UTC], ["updated_at", 2016-12-04 13:10:19 UTC], ["keyword_adgroup_id", 84], ["game_id", 3]]
AdgroupKeyword Exists (0.3ms) SELECT 1 AS one FROM "adgroup_keywords" WHERE "adgroup_keywords"."keyword_id" = ? AND ("adgroup_keywords"."id" != ?) AND "adgroup_keywords"."game_id" = ? LIMIT ? [["keyword_id", 14], ["id", 187], ["game_id", 3], ["LIMIT", 1]]
In&#34;更新&#34;方法,它会来:
AdgroupKeyword Exists (0.2ms) SELECT 1 AS one FROM "adgroup_keywords" WHERE "adgroup_keywords"."keyword_id" = ? AND "adgroup_keywords"."game_id" IS NULL LIMIT ? [["keyword_id", 17], ["LIMIT", 1]]
SQL (2.0ms) INSERT INTO "adgroup_keywords" ("keyword_id", "created_at", "updated_at", "keyword_adgroup_id") VALUES (?, ?, ?, ?) [["keyword_id", 17], ["created_at", 2016-12-04 13:07:03 UTC], ["updated_at", 2016-12-04 13:07:03 UTC], ["keyword_adgroup_id", 82]]
AdgroupKeyword Exists (0.2ms) SELECT 1 AS one FROM "adgroup_keywords" WHERE "adgroup_keywords"."keyword_id" = ? AND ("adgroup_keywords"."id" != ?) AND "adgroup_keywords"."game_id" = ? LIMIT ? [["keyword_id", 11], ["id", 185], ["game_id", 3], ["LIMIT", 1]]
答案 0 :(得分:0)
您可以尝试在<{strong> #update
调用之后(if
区域内)运行此块吗?
@adgroup.reload
@adgroup.adgroup_keywords.each do |join|
join.update(:game_id, @adgroup.game_id)
end