我正在使用Rails 3和will_paginate。分页在我的帖子控制器中运行正常但在我的标签控制器中我在第二个标签ID上出错。这是错误:
TypeError in TagsController#show
can't convert Post into Array
...
app/controllers/tags_controller.rb:8:in `show'
tags_controller.rb#显示:
def show
@tag = ActsAsTaggableOn::Tag.find(params[:id])
@posts = Post.paginate(Post.tagged_with(@tag), :page => params[:page], :order => "updated_at DESC") # line 8
respond_with(@posts)
end
令我感到困惑的是,此代码在posts控制器中起作用:
def index @posts = Post.paginate:page => params [:page],:order => “updated_at DESC” 端
我的帖子和标签模型包括:
cattr_reader :per_page
@@per_page = 10
有谁能解释我在这里做错了什么?
编辑:(完整堆栈跟踪)
will_paginate(3.0.pre2)lib / will_paginate / collection.rb:134:in replace'
will_paginate (3.0.pre2) lib/will_paginate/collection.rb:134:in
replace'
will_paginate(3.0.pre2)lib / will_paginate / finders / active_record.rb:91:in wp_query'
will_paginate (3.0.pre2) lib/will_paginate/finders/base.rb:64:in
block in paginate'
will_paginate(3.0.pre2)lib / will_paginate / collection.rb:87:in create'
will_paginate (3.0.pre2) lib/will_paginate/finders/base.rb:62:in
paginate'
app / controllers / tags_controller.rb:8:show'
actionpack (3.0.0) lib/action_controller/metal/implicit_render.rb:4:in
send_action'
actionpack(3.0.0)lib / abstract_controller / base.rb:150:in process_action'
actionpack (3.0.0) lib/action_controller/metal/rendering.rb:11:in
process_action'
actionpack(3.0.0)lib / abstract_controller / callbacks.rb:18:in block in process_action'
activesupport (3.0.0) lib/active_support/callbacks.rb:435:in
_ run__833165888__process_action__116844887__callbacks'
activesupport(3.0.0)lib / active_support / callbacks.rb:409:in _run_process_action_callbacks'
activesupport (3.0.0) lib/active_support/callbacks.rb:93:in
run_callbacks'
actionpack(3.0.0)lib / abstract_controller / callbacks.rb:17:在process_action中的process_action'
actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:30:in
块中
activesupport(3.0.0)lib / active_support / notifications.rb:52:in block in instrument'
activesupport (3.0.0) lib/active_support/notifications/instrumenter.rb:21:in
instrument'
activesupport(3.0.0)lib / active_support / notifications.rb:52:in instrument'
actionpack (3.0.0) lib/action_controller/metal/instrumentation.rb:29:in
process_action'
actionpack(3.0.0)lib / action_controller / metal / rescue.rb:17:in process_action'
actionpack (3.0.0) lib/abstract_controller/base.rb:119:in
process'
actionpack(3.0.0)lib / abstract_controller / rendering.rb:40:in process'
actionpack (3.0.0) lib/action_controller/metal.rb:133:in
dispatch'
actionpack(3.0.0)lib / action_controller / metal / rack_delegation.rb:14:in dispatch'
actionpack (3.0.0) lib/action_controller/metal.rb:173:in
block in action'
actionpack(3.0.0)lib / action_dispatch / routing / route_set.rb:62:in call'
actionpack (3.0.0) lib/action_dispatch/routing/route_set.rb:62:in
dispatch'
actionpack(3.0.0)lib / action_dispatch / routing / route_set.rb:27:in call'
rack-mount (0.6.12) lib/rack/mount/route_set.rb:148:in
block in call'
rack-mount(0.6.12)lib / rack / mount / code_generation.rb:93:in block in recognize'
rack-mount (0.6.12) lib/rack/mount/code_generation.rb:89:in
optimized_each'
rack-mount(0.6.12)lib / rack / mount / code_generation.rb:92:in recognize'
rack-mount (0.6.12) lib/rack/mount/route_set.rb:139:in
call'
actionpack(3.0.0)lib / action_dispatch / routing / route_set.rb:492:in call'
actionpack (3.0.0) lib/action_dispatch/middleware/best_standards_support.rb:17:in
call'
actionpack(3.0.0)lib / action_dispatch / middleware / head.rb:14:in call'
rack (1.2.1) lib/rack/methodoverride.rb:24:in
call'
actionpack(3.0.0)lib / action_dispatch / middleware / params_parser.rb:21:in call'
actionpack (3.0.0) lib/action_dispatch/middleware/flash.rb:182:in
call'
actionpack(3.0.0)lib / action_dispatch / middleware / session / abstract_store.rb:149:in call'
actionpack (3.0.0) lib/action_dispatch/middleware/cookies.rb:287:in
call'
activerecord(3.0.0)lib / active_record / query_cache.rb:32:in block in call'
activerecord (3.0.0) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in
cache'
activerecord(3.0.0)lib / active_record / query_cache.rb:12:in cache'
activerecord (3.0.0) lib/active_record/query_cache.rb:31:in
call'
activerecord(3.0.0)lib / active_record / connection_adapters / abstract / connection_pool.rb:355:in call'
actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:46:in
阻止调用'
activesupport(3.0.0)lib / active_support / callbacks.rb:415:_run_call_callbacks'
actionpack (3.0.0) lib/action_dispatch/middleware/callbacks.rb:44:in
调用'
rack(1.2.1)lib / rack / sendfile.rb:107:in call'
actionpack (3.0.0) lib/action_dispatch/middleware/remote_ip.rb:48:in
call'
actionpack(3.0.0)lib / action_dispatch / middleware / show_exceptions.rb:46:in call'
railties (3.0.0) lib/rails/rack/logger.rb:13:in
call'
rack(1.2.1)lib / rack / runtime.rb:17:in call'
activesupport (3.0.0) lib/active_support/cache/strategy/local_cache.rb:72:in
call'
rack(1.2.1)lib / rack / lock.rb:11:in block in call'
<internal:prelude>:10:in
synchronize'
rack(1.2.1)lib / rack / lock.rb:11:in call'
actionpack (3.0.0) lib/action_dispatch/middleware/static.rb:30:in
call'
railties(3.0.0)lib / rails / application.rb:168:in call'
railties (3.0.0) lib/rails/application.rb:77:in
method_missing'
railties(3.0.0)lib / rails / rack / log_tailer.rb:14:in call'
rack (1.2.1) lib/rack/content_length.rb:13:in
call'
rack(1.2.1)lib / rack / handler / webrick.rb:52:in service'
/usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:in
service'
/usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:in run'
/usr/local/lib/ruby/1.9.1/webrick/server.rb:183:in
阻止在start_thread'
答案 0 :(得分:1)
你试过了吗?
@posts = Post.tagged_with(@tag).paginate :page => params[:page], :order => "updated_at DESC"