discourse/documentation/chat/frontend/index.html

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

80 lines
5.9 KiB
HTML
Raw Normal View History

DEV: Chat service object initial implementation (#19814) This is a combined work of Martin Brennan, Loïc Guitaut, and Joffrey Jaffeux. --- This commit implements a base service object when working in chat. The documentation is available at https://discourse.github.io/discourse/chat/backend/Chat/Service.html Generating documentation has been made as part of this commit with a bigger goal in mind of generally making it easier to dive into the chat project. Working with services generally involves 3 parts: - The service object itself, which is a series of steps where few of them are specialized (model, transaction, policy) ```ruby class UpdateAge include Chat::Service::Base model :user, :fetch_user policy :can_see_user contract step :update_age class Contract attribute :age, :integer end def fetch_user(user_id:, **) User.find_by(id: user_id) end def can_see_user(guardian:, **) guardian.can_see_user(user) end def update_age(age:, **) user.update!(age: age) end end ``` - The `with_service` controller helper, handling success and failure of the service within a service and making easy to return proper response to it from the controller ```ruby def update with_service(UpdateAge) do on_success { render_serialized(result.user, BasicUserSerializer, root: "user") } end end ``` - Rspec matchers and steps inspector, improving the dev experience while creating specs for a service ```ruby RSpec.describe(UpdateAge) do subject(:result) do described_class.call(guardian: guardian, user_id: user.id, age: age) end fab!(:user) { Fabricate(:user) } fab!(:current_user) { Fabricate(:admin) } let(:guardian) { Guardian.new(current_user) } let(:age) { 1 } it { expect(user.reload.age).to eq(age) } end ``` Note in case of unexpected failure in your spec, the output will give all the relevant information: ``` 1) UpdateAge when no channel_id is given is expected to fail to find a model named 'user' Failure/Error: it { is_expected.to fail_to_find_a_model(:user) } Expected model 'foo' (key: 'result.model.user') was not found in the result object. [1/4] [model] 'user' ❌ [2/4] [policy] 'can_see_user' [3/4] [contract] 'default' [4/4] [step] 'update_age' /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/update_age.rb:32:in `fetch_user': missing keyword: :user_id (ArgumentError) from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:202:in `instance_exec' from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:202:in `call' from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:219:in `call' from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:417:in `block in run!' from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:417:in `each' from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:417:in `run!' from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:411:in `run' from <internal:kernel>:90:in `tap' from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:302:in `call' from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/spec/services/update_age_spec.rb:15:in `block (3 levels) in <main>' ```
2023-02-13 20:09:57 +08:00
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Discourse: </title>
<link type="text/css" rel="stylesheet" href="styles/vendor/prism-custom.css">
<link type="text/css" rel="stylesheet" href="styles/styles.css">
</head>
<body>
<header class="layout-header">
<h1>
<a href="./index.html">
Discourse
</a>
</h1>
<nav class="layout-nav">
<ul><li class="nav-heading">Classes</li><li class="nav-heading"><span class="nav-item-type type-class" title="class">C</span><span class="nav-item-name is-class"><a href="PluginApi.html">PluginApi</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="PluginApi.html#decorateChatMessage">decorateChatMessage</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="PluginApi.html#registerChatComposerButton">registerChatComposerButton</a></span></li><li class="nav-heading"><span class="nav-item-type type-class" title="class">C</span><span class="nav-item-name is-class"><a href="module.exports.html">exports</a></span></li></ul><ul><li class="nav-heading">Modules</li><li class="nav-heading"><span class="nav-item-type type-module" title="module">M</span><span class="nav-item-name is-module"><a href="module-ChatApi.html">ChatApi</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#categoryPermissions">categoryPermissions</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#channel">channel</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#channels">channels</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#createChannel">createChannel</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#createChannelArchive">createChannelArchive</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#destroyChannel">destroyChannel</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#followChannel">followChannel</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#listChannelMemberships">listChannelMemberships</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#listCurrentUserChannels">listCurrentUserChannels</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#moveChannelMessages">moveChannelMessages</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#sendMessage">sendMessage</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#unfollowChannel">unfollowChannel</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#updateChannel">updateChannel</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#updateChannelStatus">updateChannelStatus</a></span></li><li class="nav-item"><span class="nav-item-type type-function" title="function">F</span><span class="nav-item-name is-function"><a href="module-ChatApi.html#updateCurren
</nav>
</header>
<main class="layout-main ">
<div class="container">
<p class="page-kind"></p>
<h1 class="page-title"></h1>
<h3> </h3>
<section class="readme">
<article><p>This plugin is still in active development and may change frequently</p>
<h2>Documentation</h2>
<p>The Discourse Chat plugin adds chat functionality to your Discourse so it can natively support both long-form and short-form communication needs of your online community.</p>
<p>For user documentation, see <a href="https://meta.discourse.org/t/discourse-chat/230881">Discourse Chat</a>.</p>
<p>For developer documentation, see <a href="https://discourse.github.io/discourse/">Discourse Documentation</a>.</p></article>
</section>
</div>
</main>
<footer class="layout-footer">
<div class="container">
Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 4.0.0</a>
</div>
</footer>
<script src="scripts/prism.dev.js"></script>
</body>
</html>