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feat: add supports for provide theme templates in plugin class path #4862

Merged
merged 5 commits into from Nov 30, 2023
Merged

feat: add supports for provide theme templates in plugin class path #4862

merged 5 commits into from Nov 30, 2023

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guqing
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@guqing guqing commented Nov 16, 2023

What type of PR is this?

/kind feature
/milestone 2.11.x
/area core

What this PR does / why we need it:

插件支持在 templates 目录提供默认模板

由于模板解释时只有模板名称无法区分该从哪里解析模板，默认是从主题，但插件提供的模板需要从插件的 classpath 下使用插件的 classloader 加载，所以需要特殊标记模板来让模板解析知道从哪个插件加载，规则为 plugin:{pluginName}:{templateName}
如在 fake-plugin 插件下的模板 layout.html 中定义一个 fragment 片段

<!DOCTYPE html>
<html data-theme="light" lang="en" th:fragment="html (content)">
<head>
<title>Demo layout</title>
</head>
<body>
<div>Hello layout</div>
</body>

那么在其他模板使用 fragment 时需要在 th:replace 的模板名称前加上前缀

<!DOCTYPE html>
<html th:replace="plugin:fake-plugin:modules/layout :: html(content = ~{::content})"
      xmlns:th="https://www.thymeleaf.org">
<th:block th:fragment="content">
 <div>This is content</div>
</th:block>
</html>

Which issue(s) this PR fixes:

Fixes #4858

Does this PR introduce a user-facing change?

插件支持在 templates 目录提供默认模板

@f2c-ci-robot f2c-ci-robot bot added kind/feature Categorizes issue or PR as related to a new feature. release-note Denotes a PR that will be considered when it comes time to generate release notes. labels Nov 16, 2023
@f2c-ci-robot f2c-ci-robot bot added this to the 2.11.x milestone Nov 16, 2023
@f2c-ci-robot f2c-ci-robot bot added the area/core Issues or PRs related to the Halo Core label Nov 16, 2023
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codecov bot commented Nov 17, 2023 •
edited

Codecov Report

Attention: 36 lines in your changes are missing coverage. Please review.

Comparison is base (457e059) 56.88% compared to head (1e8d594) 56.85%.
Report is 38 commits behind head on main.

Files Patch % Lines
...heme/engine/PluginClassloaderTemplateResolver.java 58.13% 17 Missing and 1 partial ⚠️
...un/halo/app/theme/DefaultTemplateNameResolver.java 0.00% 15 Missing ⚠️
.../halo/app/plugin/PluginApplicationInitializer.java 0.00% 2 Missing ⚠️
...java/run/halo/app/theme/TemplateEngineManager.java 90.90% 0 Missing and 1 partial ⚠️
Additional details and impacted files 
@@             Coverage Diff              @@
##               main    #4862      +/-   ##
============================================
- Coverage     56.88%   56.85%   -0.03%     
- Complexity     2975     2984       +9     
============================================
  Files           514      516       +2     
  Lines         16912    16984      +72     
  Branches       1273     1280       +7     
============================================
+ Hits           9621     9657      +36     
- Misses         6750     6784      +34     
- Partials        541      543       +2

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

@JohnNiang JohnNiang modified the milestones: 2.11.x, 2.11.0 Nov 24, 2023
@guqing
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guqing commented Nov 24, 2023

/ping @halo-dev/sig-halo

ruibaby
ruibaby reviewed Nov 24, 2023
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/lgtm

@f2c-ci-robot f2c-ci-robot bot added the lgtm Indicates that a PR is ready to be merged. label Nov 24, 2023
@JohnNiang
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Hi @guqing ，如果多个插件中都提供了模板 halo.html，访问页面 /halo 的模板选择策略是怎么样的呢？

@guqing
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guqing commented Nov 30, 2023 •
edited

Hi @guqing ，如果多个插件中都提供了模板 halo.html，访问页面 /halo 的模板选择策略是怎么样的呢？

插件只会访问到插件自己的模板，因为使用的时候要求加上自己插件名如 ServerResponse.ok().render('plugin:fake-plugin:halo.html', Map.of()); 如果不加前缀访问的会是主题的模板，以下是一个可能的使用示例：
image

它表示优先使用主题的 doc.html 模板，如果模板不存在就会返回 plugin:docsme:doc 作为模板名然后会使用到插件的 classpath:/templates/doc.html

https://github.com/halo-dev/halo/pull/4862/files#diff-b01d609e06755f8f0fd8f83857b0fac7964c881659306d707ee6145d9ba12d06R30

如果说多个插件都定义了路由 /halo 那么路由就冲突了要看路由会访问到哪个插件，而如果路由没有冲突的情况下使用哪个插件的路由就是用哪个插件的模板

@ruibaby
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ruibaby commented Nov 30, 2023

Hi @guqing ，如果多个插件中都提供了模板 halo.html，访问页面 /halo 的模板选择策略是怎么样的呢？

模板是插件只能访问自己的模板，但如果多个插件定义了相同的路由那就是路由冲突的问题了。

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明白了。PR 描述中确实没有看出来具体该怎么用。后续可能也需要完善一下插件开发文档。

JohnNiang
JohnNiang approved these changes Nov 30, 2023
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/approve

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f2c-ci-robot bot commented Nov 30, 2023

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JohnNiang

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@f2c-ci-robot f2c-ci-robot bot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Nov 30, 2023
@JohnNiang JohnNiang merged commit f659a32 into halo-dev:main Nov 30, 2023
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@guqing guqing deleted the feature/plugin-template branch November 30, 2023 03:55
@JohnNiang JohnNiang mentioned this pull request Jan 17, 2024
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@ruibaby ruibaby ruibaby left review comments

@JohnNiang JohnNiang JohnNiang approved these changes

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期望插件可以支持在 templates 提供默认模板
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