我的params哈希看起来像这样：Parameters: {"id"=>"6", "bonus_id"=>"2", "bonus_title"=>"deposit-match-row"}，这是我的控制器：
def load_more_bonuses
@more_casinos = []
@bonus_title = params[:bonus_title]
bonus = Bonus.find(params[:bonus_id])
@more_casinos << bonus.casinos.where('casinos.id >?', params[:id]).order(id: :asc).limit(6).uniq
respond_to do |format|
format.js
end
end
我收到以下错误：ActiveRecord::RecordNotFound (Couldn't find Bonus with 'id'=)在rails控制台中一切正常，这样做：bonus = Bonus.find(2)给了我奖金记录。上面的代码有什么问题，可以做些什么来摆脱错误？感谢。
修改
完整服务器日志：
Started GET "/load_more_bonuses?id=6&bonus_id=2&bonus_title=deposit-match-row" for 127.0.0.1 at 2017-04-24 12:08:00 +0300
Processing by BonusesController#load_more_bonuses as JS
Parameters: {"id"=>"6", "bonus_id"=>"2", "bonus_title"=>"deposit-match-row"}
Started GET "/load_more_bonuses" for 127.0.0.1 at 2017-04-24 12:08:00 +0300
Processing by BonusesController#load_more_bonuses as JS
Casino Load (7.2ms) SELECT "casinos".* FROM "casinos" WHERE "casinos"."casino_of_the_month" = $1 LIMIT $2 [["casino_of_the_month", true], ["LIMIT", 1]]
Casino Load (1.4ms) SELECT "casinos".* FROM "casinos" WHERE "casinos"."casino_of_the_month" = $1 LIMIT $2 [["casino_of_the_month", true], ["LIMIT", 1]]
Bonus Load (1.2ms) SELECT "bonuses".* FROM "bonuses" WHERE "bonuses"."id" = $1 LIMIT $2 [["id", 2], ["LIMIT", 1]]
Bonus Load (15.7ms) SELECT "bonuses".* FROM "bonuses" WHERE "bonuses"."id" = $1 LIMIT $2 [["id", nil], ["LIMIT", 1]]
Rendering bonuses/load_more_bonuses.js.erb
Completed 404 Not Found in 27ms (ActiveRecord: 17.1ms)
ActiveRecord::RecordNotFound (Couldn't find Bonus with 'id'=):
Casino Load (2.2ms) SELECT DISTINCT "casinos".* FROM "casinos" INNER JOIN "casino_bonuses" ON "casinos"."id" = "casino_bonuses"."casino_id" WHERE "casino_bonuses"."bonus_id" = $1 AND (casinos.id >'6') ORDER BY "casinos"."id" ASC LIMIT $2 [["bonus_id", 2], ["LIMIT", 6]]
app/controllers/bonuses_controller.rb:75:in `load_more_bonuses'
Rendering /home/spacechick/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.text.erb
Rendering /home/spacechick/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_source.text.erb
Rendered /home/spacechick/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_source.text.erb (0.7ms)
Rendering /home/spacechick/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb
Rendered /home/spacechick/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.8ms)
Rendering /home/spacechick/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.text.erb
Rendered /home/spacechick/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.text.erb (1.2ms)
Rendered /home/spacechick/.rvm/gems/ruby-2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.text.erb (26.8ms)
(0.5ms) SELECT COUNT(*) FROM "ratings" WHERE "ratings"."casino_id" = $1 [["casino_id", 10]]
(0.4ms) SELECT SUM("ratings"."score") FROM "ratings" WHERE "ratings"."casino_id" = $1 [["casino_id", 10]]
CACHE (0.0ms) SELECT COUNT(*) FROM "ratings" WHERE "ratings"."casino_id" = $1 [["casino_id", 10]]
CACHE (0.0ms) SELECT COUNT(*) FROM "ratings" WHERE "ratings"."casino_id" = $1 [["casino_id", 10]]
CACHE (0.0ms) SELECT SUM("ratings"."score") FROM "ratings" WHERE "ratings"."casino_id" = $1 [["casino_id", 10]]
CACHE (0.0ms) SELECT COUNT(*) FROM "ratings" WHERE "ratings"."casino_id" = $1 [["casino_id", 10]]
Rendered bonuses/_load_more_casinos_list.html.erb (150.9ms)
Rendered bonuses/load_more_bonuses.js.erb (154.1ms)
Completed 200 OK in 193ms (Views: 159.7ms | ActiveRecord: 11.5ms)
编辑2
_load_more_casinos_list.html.erb：
<% @more_casinos.flatten.uniq.sort_by{ |id| id[:id] }.reverse!.take(6).each do |casino| %>
<div class="col-lg-4 col-md-6 col-sm-12 col-xs-12">
<div class="bonus-casino-index-item" data-id="<%= casino.id %>">
<div class="bonus-casinos-index-item-flip">
<div class="front">
<div class="bonus-casino-background" style="background-color: <%= casino.background_color %>">
<div class="bonus-info-sign">
<span class="glyphicon glyphicon-info-sign"></span>
</div>
<% if casino.new === true %>
<div class="bonus-casino-new"></div>
<% elsif casino.hot === true %>
<div class="bonus-casino-hot"></div>
<% elsif casino.exclusive === true %>
<div class="bonus-casino-exclusive"></div>
<% end %>
<div class="bonus-casino-logo">Logo will be here</div>
<div class="bonus-casino-rating">
<div class="rateit" data-rateit-value="<%= casino.average_rating %>" data-rateit-ispreset="true" data-rateit-readonly="true" data-rateit-mode="font" style="font-size:20px"></div>
</div>
<div class="bonus-casino-bonus-info">
<%= casino.bonus_info %>
</div>
</div>
</div>
<div class="back">
<div class="bonus-casino-background-back">
<div class="bonus-casino-back-close">
<span class="glyphicon glyphicon-remove-sign"></span>
</div>
<p class="bonus-casino-bonus-info-back"><%= casino.bonus_info.truncate(50) %></p>
<p class="bonus-casino-average-rating">Score: <%= casino.average_rating.round(2) %></p>
<div class="bonus-casino-bonus-description"><%= strip_tags(casino.description).truncate(120) %></div>
</div>
</div>
</div>
<div class="bonuses-page-casino-list-links">
<%= link_to 'Review', casino, class: 'bonus-casino-index-item-review' %>
<%= link_to 'Join now', '#', class: 'bonus-casino-index-item-join-now' %>
</div>
</div>
</div>
<% end %>
编辑3
puts @more_casinos给了我：
Casino Load (4.1ms) SELECT "casinos".* FROM "casinos" WHERE "casinos"."casino_of_the_month" = $1 LIMIT $2 [["casino_of_the_month", true], ["LIMIT", 1]]
Casino Load (1.8ms) SELECT DISTINCT "casinos".* FROM "casinos" INNER JOIN "casino_bonuses" ON "casinos"."id" = "casino_bonuses"."casino_id" WHERE "casino_bonuses"."bonus_id" = $1 AND (casinos.id >'6') ORDER BY "casinos"."id" ASC LIMIT $2 [["bonus_id", 2], ["LIMIT", 6]]
Bonus Load (0.4ms) SELECT "bonuses".* FROM "bonuses" WHERE "bonuses"."id" = $1 LIMIT $2 [["id", nil], ["LIMIT", 1]]
#<Casino:0x000000082c8820>
load_more_bonuses.js.erb：
<% if @more_casinos.any? %>
$('#<%= @bonus_title.parameterize %>-row').append('<%= j render 'bonuses/load_more_casinos_list' %>');
<% end %>
编辑4
application.js
$('.bonus-casinos-load-more').click(function () {
var lastId = $(this).parent().parent().parent().children('.first-row').children().last().children().attr('data-id');
var bonusId = $(this).attr('data-id');
var bonusTitle = $(this).parent().parent().parent().children('.first-row').attr('id');
$.ajax({
type: 'GET',
url: $(this).attr('href'),
data: {
id: lastId,
bonus_id: bonusId,
bonus_title: bonusTitle
},
dataType: 'script'
});
});
答案 0 :(得分：0)
问题应该与视图有关，因为在您的日志中，它会发送2个请求。
一个请求使用合法查询字符串，1个请求查询字符串为空。
Started GET "/load_more_bonuses?id=6&bonus_id=2&bonus_title=deposit-match-row" for 127.0.0.1 at 2017-04-24 12:08:00 +0300
Processing by BonusesController#load_more_bonuses as JS
Parameters: {"id"=>"6", "bonus_id"=>"2", "bonus_title"=>"deposit-match-row"}
Started GET "/load_more_bonuses" for 127.0.0.1 at 2017-04-24 12:08:00 +0300
在您的视图文件中，它会发送另一个请求，但没有参数。
通过ajax调用发送，然后检查参数，找出它为空的原因。在console.log代码中添加一些js。