के लिए फ़ॉर्म बनाना संभव है, मैं सिर्फ क्लास गुणों को संपादित करने की क्षमता चाहता हूं, जो ActiveRecord क्लास के उत्तराधिकारी नहीं हैं।क्या सरल वर्ग
class Entry
attr_accessor :title, :body
end
यहाँ एक नियंत्रक है:
class DiaryController < ApplicationController
def new
@entry = Entry.new
end
end
यहाँ एक दृश्य है:
<%= form_for(@entry) do |f| %>
<%= f.text_field :title %> <br />
<%= f.text_area :body %> <br />
<% end %>
मुझे मिल गया
यहाँ मेरी कक्षा /app/model/entry.rb है जब मैं प्रपत्र खोल रहा था तो त्रुटि संदेश:
अपरिभाषित विधि `MODEL_NAME 'प्रवेश के लिए:
Extracted source (around line #1): 1: <%= form_for(@entry) do |f| %> 2: <%= f.text_field :title %> <br /> 3: <%= f.text_area :body %> <br /> 4: <% end %> Full trace: activemodel (3.0.6) lib/active_model/naming.rb:95:in `model_name_from_record_or_class' activemodel (3.0.6) lib/active_model/naming.rb:82:in `singular' actionpack (3.0.6) lib/action_view/helpers/form_helper.rb:312:in `form_for' app/views/diary/new.html.erb:1:in `_app_views_diary_new_html_erb___902027577_26033568_187052521' actionpack (3.0.6) lib/action_view/template.rb:135:in `block in render' activesupport (3.0.6) lib/active_support/notifications.rb:54:in `instrument' actionpack (3.0.6) lib/action_view/template.rb:127:in `render' actionpack (3.0.6) lib/action_view/render/rendering.rb:59:in `block in _render_template' activesupport (3.0.6) lib/active_support/notifications.rb:52:in `block in instrument' activesupport (3.0.6) lib/active_support/notifications/instrumenter.rb:21:in `instrument' activesupport (3.0.6) lib/active_support/notifications.rb:52:in `instrument' actionpack (3.0.6) lib/action_view/render/rendering.rb:56:in `_render_template' actionpack (3.0.6) lib/action_view/render/rendering.rb:26:in `render' actionpack (3.0.6) lib/abstract_controller/rendering.rb:115:in `_render_template' actionpack (3.0.6) lib/abstract_controller/rendering.rb:109:in `render_to_body' actionpack (3.0.6) lib/action_controller/metal/renderers.rb:47:in `render_to_body' actionpack (3.0.6) lib/action_controller/metal/compatibility.rb:55:in `render_to_body' actionpack (3.0.6) lib/abstract_controller/rendering.rb:102:in `render_to_string' actionpack (3.0.6) lib/abstract_controller/rendering.rb:93:in `render' actionpack (3.0.6) lib/action_controller/metal/rendering.rb:17:in `render' actionpack (3.0.6) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render' activesupport (3.0.6) lib/active_support/core_ext/benchmark.rb:5:in `block in ms' c:/Ruby192/lib/ruby/1.9.1/benchmark.rb:309:in `realtime' activesupport (3.0.6) lib/active_support/core_ext/benchmark.rb:5:in `ms' actionpack (3.0.6) lib/action_controller/metal/instrumentation.rb:40:in `block in render' actionpack (3.0.6) lib/action_controller/metal/instrumentation.rb:78:in `cleanup_view_runtime' activerecord (3.0.6) lib/active_record/railties/controller_runtime.rb:15:in `cleanup_view_runtime' actionpack (3.0.6) lib/action_controller/metal/instrumentation.rb:39:in `render' actionpack (3.0.6) lib/action_controller/metal/implicit_render.rb:10:in `default_render' actionpack (3.0.6) lib/action_controller/metal/implicit_render.rb:5:in `send_action' actionpack (3.0.6) lib/abstract_controller/base.rb:150:in `process_action' actionpack (3.0.6) lib/action_controller/metal/rendering.rb:11:in `process_action' actionpack (3.0.6) lib/abstract_controller/callbacks.rb:18:in `block in process_action' activesupport (3.0.6) lib/active_support/callbacks.rb:436:in `_run__776311234__process_action__123531476__callbacks' activesupport (3.0.6) lib/active_support/callbacks.rb:410:in `_run_process_action_callbacks' activesupport (3.0.6) lib/active_support/callbacks.rb:94:in `run_callbacks' actionpack (3.0.6) lib/abstract_controller/callbacks.rb:17:in `process_action' actionpack (3.0.6) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action' activesupport (3.0.6) lib/active_support/notifications.rb:52:in `block in instrument' activesupport (3.0.6) lib/active_support/notifications/instrumenter.rb:21:in `instrument' activesupport (3.0.6) lib/active_support/notifications.rb:52:in `instrument' actionpack (3.0.6) lib/action_controller/metal/instrumentation.rb:29:in `process_action' actionpack (3.0.6) lib/action_controller/metal/rescue.rb:17:in `process_action' actionpack (3.0.6) lib/abstract_controller/base.rb:119:in `process' actionpack (3.0.6) lib/abstract_controller/rendering.rb:41:in `process' actionpack (3.0.6) lib/action_controller/metal.rb:138:in `dispatch' actionpack (3.0.6) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch' actionpack (3.0.6) lib/action_controller/metal.rb:178:in `block in action' actionpack (3.0.6) lib/action_dispatch/routing/route_set.rb:62:in `call' actionpack (3.0.6) lib/action_dispatch/routing/route_set.rb:62:in `dispatch' actionpack (3.0.6) lib/action_dispatch/routing/route_set.rb:27:in `call' rack-mount (0.6.14) lib/rack/mount/route_set.rb:148:in `block in call' rack-mount (0.6.14) lib/rack/mount/code_generation.rb:93:in `block in recognize' rack-mount (0.6.14) lib/rack/mount/code_generation.rb:68:in `optimized_each' rack-mount (0.6.14) lib/rack/mount/code_generation.rb:92:in `recognize' rack-mount (0.6.14) lib/rack/mount/route_set.rb:139:in `call' actionpack (3.0.6) lib/action_dispatch/routing/route_set.rb:493:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/head.rb:14:in `call' rack (1.2.2) lib/rack/methodoverride.rb:24:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/params_parser.rb:21:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/flash.rb:182:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/session/abstract_store.rb:149:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/cookies.rb:302:in `call' activerecord (3.0.6) lib/active_record/query_cache.rb:32:in `block in call' activerecord (3.0.6) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache' activerecord (3.0.6) lib/active_record/query_cache.rb:12:in `cache' activerecord (3.0.6) lib/active_record/query_cache.rb:31:in `call' activerecord (3.0.6) lib/active_record/connection_adapters/abstract/connection_pool.rb:354:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/callbacks.rb:46:in `block in call' activesupport (3.0.6) lib/active_support/callbacks.rb:416:in `_run_call_callbacks' actionpack (3.0.6) lib/action_dispatch/middleware/callbacks.rb:44:in `call' rack (1.2.2) lib/rack/sendfile.rb:107:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/remote_ip.rb:48:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call' railties (3.0.6) lib/rails/rack/logger.rb:13:in `call' rack (1.2.2) lib/rack/runtime.rb:17:in `call' activesupport (3.0.6) lib/active_support/cache/strategy/local_cache.rb:72:in `call' rack (1.2.2) lib/rack/lock.rb:11:in `block in call' <internal:prelude>:10:in `synchronize' rack (1.2.2) lib/rack/lock.rb:11:in `call' actionpack (3.0.6) lib/action_dispatch/middleware/static.rb:30:in `call' railties (3.0.6) lib/rails/application.rb:168:in `call' railties (3.0.6) lib/rails/application.rb:77:in `method_missing' railties (3.0.6) lib/rails/rack/log_tailer.rb:14:in `call' rack (1.2.2) lib/rack/content_length.rb:13:in `call' rack (1.2.2) lib/rack/handler/webrick.rb:52:in `service' c:/Ruby192/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service' c:/Ruby192/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run' c:/Ruby192/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
form_for
-tag का उपयोग कर वर्ग गुणों को संपादित करने की क्षमता है: कक्षा
यहाँ पूर्ण ढेर है?
हो सकता है कि वहाँ कुछ और त्रुटि जानकारी है? त्रुटि संख्या के लिए कुछ और संदर्भ जैसे लाइन नंबर, फ़ाइल नाम इत्यादि – Zabba
क्षमा करें, यह मेरी गलती है। यहां लाइन नंबर और पूर्ण स्टैक है http://pastebin.com/ECTEBNYq – demas
यदि आप अपनी 'एंट्री' कक्षा में क्लास विधि 'model_name' को लागू करते हैं तो यह काम करेगा। 'form_for' एक ActiveRecord ऑब्जेक्ट की अपेक्षा करता है, जिसने क्लास विधि कहा है। हालांकि, कोई गारंटी नहीं है, पृष्ठभूमि में शायद कई अन्य चीजें चल रही हैं। – Mischa