如何向模型添加自定义字段

插件 其他
42

我已将“主题自定义字段”指南更新至 Discourse 3.4.0。下周我将更新类别指南。

4 个赞
43

您好 @angus，感谢您提供的 category-custom-fields 插件！

但是，在点击
保存分类
时，值未被存储：

  • 您未修改示例中的复选框会立即弹回至 未选中 状态。
  • 自定义字段未存储在数据库中（我已监控此情况）。

该图片显示了一个用户界面，其中包含“my_field 设置”选项，带有一个标有“my_field”的复选框，以及底部的“保存分类”按钮。（由 AI 标注）
该图片显示了一个用户界面，其中包含“my_field 设置”选项，带有一个标有“my_field”的复选框，以及底部的“保存分类”按钮。（由 AI 标注）422×390 9.5 KB

我没有收到任何错误。

您能帮我弄清楚这个问题吗？我找不到任何原因。

44

有没有办法在服务器端确保自定义字段是必填的？

45

在插件中，您通常会使用 ModelCustomField 模型来添加您自己的数据。

您能详细说明您想要做什么吗？

46

我已经添加了自定义字段，并且能够将它们保存在自定义表中的数据库中。但是，我想使这些自定义字段在客户端和服务器端都是强制性的。在客户端这相对容易。在服务器端，是否有标准方法来验证所有自定义字段是否都已填写，然后才允许创建主题。目前，即使自定义字段为空，也会创建主题，而没有这些字段。

47

啊。这很简单，但我对 Rails 还不够精通，无法告诉你怎么做。但是，你的代码将位于一个回调（https://guides.rubyonrails.org/active_record_callbacks.html）之后，该回调会在创建之前调用，如果你的字段不存在，它将失败。

48

Hi everyone,

I set up a plugin based on Topic Custom Fields and everything was working fine until I updated Discourse to version 3.6.0.beta1-dev.

  • Topic list => OK, the columns appear correctly in the listing
  • Topic title => OK, the columns appear correctly under the topic title
  • Topic composer => KO, the fields don’t appear and I can’t compose and validate the message.

image
image793×284 8.99 KB

Here is the message encountered:

index.js:104 DEBUG: -------------------------------
index.js:104 DEBUG: Ember : 6.6.0
index.js:104 DEBUG: -------------------------------
app.js:271 ℹ️ Discourse v3.6.0.beta1-dev — https://github.com/discourse/discourse/commits/1d5b82ed51 — Ember v6.6.0
dev-tools.js:47 Loading Discourse dev tools...
contentCommunicatorMain.js:1 -- pf - starting script detection
dev-tools.js:55 Loaded Discourse dev tools. Run `disableDevTools()` in console to disable.
index.js:104 DEBUG: For more advanced debugging, install the Ember Inspector from https://chrome.google.com/webstore/detail/ember-inspector/bmdblncegkenkacieihfhpjfppoconhi
index.js:4148 

Error occurred:

- While rendering:
  {{outlet}} for -top-level
    -top-level
      {{outlet}} for application
        application
          (unknown template-only component)
            DiscourseRoot
              ComposerContainer
                ComposerBody
                  ComposerEditor
                    DEditor
                      PluginOutletComponent
                        TopicVersionComposer
                          topic-custom-field-input
                            Input
execute @ index.js:4148
index.js:3391 

Error occurred:
execute @ index.js:3391
index.js:85 Uncaught (in promise) Error: Attempted to resolve a helper in a strict mode template, but that value was not in scope: action
    at lookupBuiltInHelper (index.js:85:30)
    at index.js:253:60
    at encodeOp (index.js:266:8)
    at pushOp (index.js:1210:5)
    at index.js:636:33
    at Compilers.compile (index.js:448:14)
    at expr (index.js:461:43)
    at CompilePositional (index.js:614:47)
    at SimpleArgs (index.js:595:15)
    at index.js:1064:12
    at index.js:214:11
    at encodeOp (index.js:240:7)
    at pushOp (index.js:1210:5)
    at index.js:1063:35
    at Compilers.compile (index.js:448:14)
    at compileStatements (index.js:1212:49)
    at index.js:1191:18
    at CompilableTemplateImpl.compile (index.js:1193:6)
    at VM.compile (index.js:3771:31)
    at Object.evaluate (index.js:506:25)
    at Object.evaluate (index.js:103:106)
    at LowLevelVM.evaluateSyscall (index.js:2873:20)
    at LowLevelVM.evaluateInner (index.js:2852:64)
    at LowLevelVM.evaluateOuter (index.js:2849:10)
    at VM.next (index.js:4167:45)
    at VM._execute (index.js:4157:21)
    at VM.execute (index.js:4137:26)
    at TryOpcode.handleException (index.js:3450:19)
    at UpdatingVMFrame.handleException (index.js:3592:52)
    at UpdatingVM.throw (index.js:3414:16)
    at Assert.evaluate (index.js:565:42)
    at UpdatingVM._execute (index.js:3401:34)
    at index.js:3384:51
    at push.../../../../../../../node_modules/.pnpm/ember-source@6.6.0_patch_hash=tyhbf7f4uxnr3gt4x2tdcudbva_@glimmer+component@2.0.0_rsvp@4.8.5/node_modules/ember-source/dist/packages/@glimmer/validator/index.js.debug.runInTrackingTransaction (index.js:44:19)
    at UpdatingVM.execute (index.js:3384:15)
    at RenderResultImpl.rerender (index.js:3610:8)
    at index-BCp6wOJU.js:4639:55
    at RootState.render (index-BCp6wOJU.js:4600:9)
    at index-BCp6wOJU.js:4934:16
    at inTransaction (index.js:2414:7)
    at Renderer._renderRoots (index-BCp6wOJU.js:4914:20)
    at Renderer._renderRootsTransaction (index-BCp6wOJU.js:4962:12)
    at Renderer._revalidate (index-BCp6wOJU.js:4995:10)
    at invoke (index.js:262:14)
    at Queue.flush (index.js:180:11)
    at DeferredActionQueues.flush (index.js:334:19)
    at Backburner._end (index.js:762:32)
    at Backburner._boundAutorunEnd (index.js:499:12)
index-BCp6wOJU.js:4608 Attempted to rerender, but the Ember application has had an unrecoverable error occur during render. You should reload the application after fixing the cause of the error.
fn @ index-BCp6wOJU.js:4608
index-BCp6wOJU.js:4608 Attempted to rerender, but the Ember application has had an unrecoverable error occur during render. You should reload the application after fixing the cause of the error.
fn @ index-BCp6wOJU.js:4608
index-BCp6wOJU.js:4608 Attempted to rerender, but the Ember application has had an unrecoverable error occur during render. You should reload the application after fixing the cause of the error.
fn @ index-BCp6wOJU.js:4608
index-BCp6wOJU.js:4608 Attempted to rerender, but the Ember application has had an unrecoverable error occur during render. You should reload the application after fixing the cause of the error.
fn @ index-BCp6wOJU.js:4608
index-BCp6wOJU.js:4608 Attempted to rerender, but the Ember application has had an unrecoverable error occur during render. You should reload the application after fixing the cause of the error.
fn @ index-BCp6wOJU.js:4608
index-BCp6wOJU.js:4608 Attempted to rerender, but the Ember application has had an unrecoverable error occur during render. You should reload the application after fixing the cause of the error.
fn @ index-BCp6wOJU.js:4608
  • Topic edit view => KO, the fields don’t appear and I can’t validate the title modification.

Here is the message encountered -pretty much the same as the previous one- :

index.js:4148 

Error occurred:

- While rendering:
  {{outlet}} for -top-level
    -top-level
      {{outlet}} for application
        application
          (unknown template-only component)
            DiscourseRoot
              {{outlet}} for topic
                topic
                  (unknown template-only component)
                    DiscourseTopic
                      TopicTitle
                        PluginOutletComponent
                          TopicVersionEditTopic
                            topic-custom-field-input
                              Input


execute @ index.js:4148
handleException @ index.js:3450
handleException @ index.js:3592
throw @ index.js:3414
evaluate @ index.js:565
_execute @ index.js:3401
(anonymous) @ index.js:3384
push.../../../../../../../node_modules/.pnpm/ember-source@6.6.0_patch_hash=tyhbf7f4uxnr3gt4x2tdcudbva_@glimmer+component@2.0.0_rsvp@4.8.5/node_modules/ember-source/dist/packages/@glimmer/validator/index.js.debug.runInTrackingTransaction @ index.js:44
execute @ index.js:3384
rerender @ index.js:3610
(anonymous) @ index-BCp6wOJU.js:4639
(anonymous) @ index-BCp6wOJU.js:4600
(anonymous) @ index-BCp6wOJU.js:4934
inTransaction @ index.js:2414
_renderRoots @ index-BCp6wOJU.js:4914
_renderRootsTransaction @ index-BCp6wOJU.js:4962
_revalidate @ index-BCp6wOJU.js:4995
invoke @ index.js:262
flush @ index.js:180
flush @ index.js:334
_end @ index.js:762
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_end @ index.js:768
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_end @ index.js:768
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_ensureInstance @ index.js:919
ensureInstance @ index.js:731
scheduleRevalidate @ index-BCp6wOJU.js:3609
dirtyTag @ index.js:229
dirtyTagFor @ index.js:287
markObjectAsDirty @ cache-fCezwMOy.js:49
notifyPropertyChange @ cache-fCezwMOy.js:745
_setProp @ property_set-2JtwI-ab.js:66
set @ property_set-2JtwI-ab.js:42
set @ observable.js:27
editTopic @ topic.js:376
index.js:3391 

Error occurred:

execute @ index.js:3391
rerender @ index.js:3610
(anonymous) @ index-BCp6wOJU.js:4639
(anonymous) @ index-BCp6wOJU.js:4600
(anonymous) @ index-BCp6wOJU.js:4934
inTransaction @ index.js:2414
_renderRoots @ index-BCp6wOJU.js:4914
_renderRootsTransaction @ index-BCp6wOJU.js:4962
_revalidate @ index-BCp6wOJU.js:4995
invoke @ index.js:262
flush @ index.js:180
flush @ index.js:334
_end @ index.js:762
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_end @ index.js:768
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_end @ index.js:768
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_ensureInstance @ index.js:919
ensureInstance @ index.js:731
scheduleRevalidate @ index-BCp6wOJU.js:3609
dirtyTag @ index.js:229
dirtyTagFor @ index.js:287
markObjectAsDirty @ cache-fCezwMOy.js:49
notifyPropertyChange @ cache-fCezwMOy.js:745
_setProp @ property_set-2JtwI-ab.js:66
set @ property_set-2JtwI-ab.js:42
set @ observable.js:27
editTopic @ topic.js:376
5:1 Autofocus processing was blocked because a document already has a focused element.
index.js:85 Uncaught (in promise) Error: Attempted to resolve a helper in a strict mode template, but that value was not in scope: action
    at lookupBuiltInHelper (index.js:85:30)
    at index.js:253:60
    at encodeOp (index.js:266:8)
    at pushOp (index.js:1210:5)
    at index.js:636:33
    at Compilers.compile (index.js:448:14)
    at expr (index.js:461:43)
    at CompilePositional (index.js:614:47)
    at SimpleArgs (index.js:595:15)
    at index.js:1064:12
    at index.js:214:11
    at encodeOp (index.js:240:7)
    at pushOp (index.js:1210:5)
    at index.js:1063:35
    at Compilers.compile (index.js:448:14)
    at compileStatements (index.js:1212:49)
    at index.js:1191:18
    at CompilableTemplateImpl.compile (index.js:1193:6)
    at VM.compile (index.js:3771:31)
    at Object.evaluate (index.js:506:25)
    at Object.evaluate (index.js:103:106)
    at LowLevelVM.evaluateSyscall (index.js:2873:20)
    at LowLevelVM.evaluateInner (index.js:2852:64)
    at LowLevelVM.evaluateOuter (index.js:2849:10)
    at VM.next (index.js:4167:45)
    at VM._execute (index.js:4157:21)
    at VM.execute (index.js:4137:26)
    at TryOpcode.handleException (index.js:3450:19)
    at UpdatingVMFrame.handleException (index.js:3592:52)
    at UpdatingVM.throw (index.js:3414:16)
    at Assert.evaluate (index.js:565:42)
    at UpdatingVM._execute (index.js:3401:34)
    at index.js:3384:51
    at push.../../../../../../../node_modules/.pnpm/ember-source@6.6.0_patch_hash=tyhbf7f4uxnr3gt4x2tdcudbva_@glimmer+component@2.0.0_rsvp@4.8.5/node_modules/ember-source/dist/packages/@glimmer/validator/index.js.debug.runInTrackingTransaction (index.js:44:19)
    at UpdatingVM.execute (index.js:3384:15)
    at RenderResultImpl.rerender (index.js:3610:8)
    at index-BCp6wOJU.js:4639:55
    at RootState.render (index-BCp6wOJU.js:4600:9)
    at index-BCp6wOJU.js:4934:16
    at inTransaction (index.js:2414:7)
    at Renderer._renderRoots (index-BCp6wOJU.js:4914:20)
    at Renderer._renderRootsTransaction (index-BCp6wOJU.js:4962:12)
    at Renderer._revalidate (index-BCp6wOJU.js:4995:10)
    at invoke (index.js:262:14)
    at Queue.flush (index.js:180:11)
    at DeferredActionQueues.flush (index.js:334:19)
    at Backburner._end (index.js:762:32)
    at Backburner._boundAutorunEnd (index.js:499:12)
lookupBuiltInHelper @ index.js:85
(anonymous) @ index.js:253
encodeOp @ index.js:266
pushOp @ index.js:1210
(anonymous) @ index.js:636
compile @ index.js:448
expr @ index.js:461
CompilePositional @ index.js:614
SimpleArgs @ index.js:595
(anonymous) @ index.js:1064
(anonymous) @ index.js:214
encodeOp @ index.js:240
pushOp @ index.js:1210
(anonymous) @ index.js:1063
compile @ index.js:448
compileStatements @ index.js:1212
(anonymous) @ index.js:1191
compile @ index.js:1193
compile @ index.js:3771
(anonymous) @ index.js:506
evaluate @ index.js:103
evaluateSyscall @ index.js:2873
evaluateInner @ index.js:2852
evaluateOuter @ index.js:2849
next @ index.js:4167
_execute @ index.js:4157
execute @ index.js:4137
handleException @ index.js:3450
handleException @ index.js:3592
throw @ index.js:3414
evaluate @ index.js:565
_execute @ index.js:3401
(anonymous) @ index.js:3384
push.../../../../../../../node_modules/.pnpm/ember-source@6.6.0_patch_hash=tyhbf7f4uxnr3gt4x2tdcudbva_@glimmer+component@2.0.0_rsvp@4.8.5/node_modules/ember-source/dist/packages/@glimmer/validator/index.js.debug.runInTrackingTransaction @ index.js:44
execute @ index.js:3384
rerender @ index.js:3610
(anonymous) @ index-BCp6wOJU.js:4639
(anonymous) @ index-BCp6wOJU.js:4600
(anonymous) @ index-BCp6wOJU.js:4934
inTransaction @ index.js:2414
_renderRoots @ index-BCp6wOJU.js:4914
_renderRootsTransaction @ index-BCp6wOJU.js:4962
_revalidate @ index-BCp6wOJU.js:4995
invoke @ index.js:262
flush @ index.js:180
flush @ index.js:334
_end @ index.js:762
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_end @ index.js:768
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_end @ index.js:768
Backburner._boundAutorunEnd @ index.js:499
Promise.then
iterations @ index.js:18
flush @ index.js:29
_scheduleAutorun @ index.js:928
_ensureInstance @ index.js:919
ensureInstance @ index.js:731
scheduleRevalidate @ index-BCp6wOJU.js:3609
dirtyTag @ index.js:229
dirtyTagFor @ index.js:287
markObjectAsDirty @ cache-fCezwMOy.js:49
notifyPropertyChange @ cache-fCezwMOy.js:745
_setProp @ property_set-2JtwI-ab.js:66
set @ property_set-2JtwI-ab.js:42
set @ observable.js:27
editTopic @ topic.js:376

Are any of you experiencing the same problem?

1 个赞
49

你好 @cdervout ，

问题
主题自定义字段输入组件使用了旧的语法：

{{on "change" (action @onChangeField value="target.value")}}
  • 这种 (action …) 语法不支持现代 Glimmer 组件。
  • 因此，该字段在组合器中根本不渲染。

修复
用现代 Glimmer 操作替换了旧语法：

{{on "input" this.handleInputChange}}

并添加了相应的 JS 方法：

@action
handleInputChange(event) {
  this.args.onChangeField(event.target.value);
}
  • 这确保了字段在组合器中正确渲染。

重构组件代码

import Component from "@glimmer/component";
import { Input, Textarea } from "@ember/component";
import { on } from "@ember/modifier";
import { readOnly } from "@ember/object/computed";
import { service } from "@ember/service";
import { eq } from "truth-helpers";
import i18n from "discourse-common/helpers/i18n";
import { action } from "@ember/object";

export default class TopicCustomFieldInput extends Component {
  @service siteSettings;
  @readOnly("siteSettings.topic_custom_field_name") fieldName;
  @readOnly("siteSettings.topic_custom_field_type") fieldType;

  @action
  handleInputChange(event) {
    this.args.onChangeField(event.target.value);
  }

  <template>
    {{#if (eq this.fieldType "boolean")}}
      <Input
        @type="checkbox"
        @checked={{@fieldValue}}
        {{on "input" this.handleInputChange}}
      />
      <span>{{this.fieldName}}</span>
    {{/if}}

    {{#if (eq this.fieldType "integer")}}
      <Input
        @type="number"
        @value={{@fieldValue}}
        placeholder={{i18n
          "topic_custom_field.placeholder"
          field=this.fieldName
        }}
        class="topic-custom-field-input small"
        {{on "input" this.handleInputChange}}
      />
    {{/if}}

    {{#if (eq this.fieldType "string")}}
      <Input
        @type="text"
        @value={{@fieldValue}}
        placeholder={{i18n
          "topic_custom_field.placeholder"
          field=this.fieldName
        }}
        class="topic-custom-field-input large"
        {{on "input" this.handleInputChange}}
      />
    {{/if}}

    {{#if (eq this.fieldType "json")}}
      <Textarea
        @value={{@fieldValue}}
        {{on "input" this.handleInputChange}}
        placeholder={{i18n
          "topic_custom_field.placeholder"
          field=this.fieldName
        }}
        class="topic-custom-field-textarea"
      />
    {{/if}}
  </template>
}

编辑：我已经为此创建了一个 PR

3 个赞
50

太好了，一切正常！

我已经适应了字段为复选框的情况下的代码。要检索值，我不得不使用 event.target.checked 而不是 event.target.value。

2 个赞