mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-06 06:58:26 +00:00
0ccf7fef5d
Summary: ## Changes in this pull request Get this fix and make it ready for 4.0 release. ### Checklist - [ ] All tests pass. Demo project builds and runs. - [ ] I added tests, an experiment, or detailed why my change isn't tested. - [ ] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes. - [ ] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md) Pull Request resolved: https://github.com/Instagram/IGListKit/pull/1393 Reviewed By: iperry90 Differential Revision: D18618773 Pulled By: lorixx fbshipit-source-id: 0360c36d85dc5db15d7e08bdf68ec9c8be992499
445 lines
29 KiB
HTML
445 lines
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Generating your models using remodel Reference
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<article class="main-content">
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<section>
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<section class="section">
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<h1 id='generating-your-iglistdiffable-models-using-remodel' class='heading'>Generating your IGListDiffable models using remodel</h1>
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<p>With the <code><a href="Protocols/IGListDiffable.html">IGListDiffable</a></code> plugin for <a href="https://github.com/facebook/remodel">remodel by facebook</a>, you can automatically generate models conforming to the <code><a href="Protocols/IGListDiffable.html">IGListDiffable</a></code>.</p>
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<p>This will automatically implement <code>hash</code>, <code>isEqual:</code> and <code>description</code>, as well as <code>diffIdentifier</code> and <code>isEqualToDiffableObject:</code> for you. Remodel is also capable to generate additional code, like conforming to <code>NSCoding</code> or additional Builder classes for your model object. It will make creating and updating models much easier, faster and safer.</p>
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<p>In <code>/remodel-plugin</code>, you can find the source files to build the <code><a href="Protocols/IGListDiffable.html">IGListDiffable</a></code> plugin locally.</p>
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<h2 id='installation' class='heading'>Installation</h2>
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<h3 id='1-remodel-installation' class='heading'>1. Remodel installation</h3>
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<p>Please follow the <a href="https://github.com/facebook/remodel">installation instructions</a> in the main remodel repository.</p>
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<p>tl;dr: Either clone the original repository, or use an npm installation. In the latter case you can run <code>which remodel-gen</code> to find out the path of your installation.</p>
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<h3 id='2-plugin-installation' class='heading'>2. Plugin installation</h3>
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<p>Copy the following files & folders within <code>/remodel-plugin</code> into your local remodel checkout:</p>
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<ul>
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<li><code>/src/plugins/iglistdiffable.ts</code> - the actual plugin</li>
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<li><code>/src/__tests__/plugins/iglistdiffable-test.ts</code> - unit tests</li>
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<li><code>/features/iglistdiffable.feature</code> - integration tests</li>
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</ul>
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<p>And then register the new plugin with the system:</p>
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<ul>
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<li>Edit <code>/remodel/src/value-object-default-config.ts</code> and add <code>iglistdiffable</code> to the list of basePlugins:</li>
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</ul>
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<pre class="highlight plaintext"><code>// value-object-default-config.ts
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basePlugins: List.of(
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'assert-nullability',
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'assume-nonnull',
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'builder',
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'coding',
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'copying',
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'description',
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'equality',
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'fetch-status',
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'immutable-properties',
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'init-new-unavailable',
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'use-cpp',
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'iglistdiffable'
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)
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</code></pre>
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<h3 id='3-build-plugin' class='heading'>3. Build plugin:</h3>
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<p>Once you copied them over and registered the plugin, you have to compile the typescript files into javascript. Do do so run this command from the remodel directory:</p>
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<ul>
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<li><code>./bin/build</code></li>
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</ul>
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<h3 id='4-run-tests-optional' class='heading'>4. Run tests (optional)</h3>
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<p>To run the unit/integration tests, you can run the following commands:</p>
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<ul>
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<li><code>./bin/runUnitTests</code></li>
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<li><code>./bin/runAcceptanceTests</code></li>
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</ul>
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<p>This is especially useful if you plan to change/extend the plugin in any way.</p>
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<h3 id='5-use-the-plugin' class='heading'>5. Use the plugin</h3>
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<p>Now you are ready to generate your <code><a href="Protocols/IGListDiffable.html">IGListDiffable</a></code> conforming models! To generate a model, create a new <code>.value</code> file. Here’s an example:</p>
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<pre class="highlight plaintext"><code># PersonModel.value
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PersonModel includes(IGListDiffable) {
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NSString *firstName
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NSString *lastName
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%diffIdentifier
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NSString *uniqueId
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}
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</code></pre>
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<p>To generate your Objective-C models, run the generation tool like this:</p>
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<p><code>./bin/generate path/to/your/PersonModel.value</code></p>
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<p>This will generate the following Objective-C files in the same directory:</p>
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<pre class="highlight objective_c"><code><span class="c1">// PersonModel.h
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</span><span class="k">@interface</span> <span class="nc">PersonModel</span> <span class="p">:</span> <span class="nc">NSObject</span> <span class="o"><</span><span class="n">IGListDiffable</span><span class="p">,</span> <span class="n">NSCopying</span><span class="o">></span>
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<span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">,</span> <span class="n">readonly</span><span class="p">,</span> <span class="n">copy</span><span class="p">)</span> <span class="n">NSString</span> <span class="o">*</span><span class="n">firstName</span><span class="p">;</span>
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<span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">,</span> <span class="n">readonly</span><span class="p">,</span> <span class="n">copy</span><span class="p">)</span> <span class="n">NSString</span> <span class="o">*</span><span class="n">lastName</span><span class="p">;</span>
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<span class="k">@property</span> <span class="p">(</span><span class="n">nonatomic</span><span class="p">,</span> <span class="n">readonly</span><span class="p">,</span> <span class="n">copy</span><span class="p">)</span> <span class="n">NSString</span> <span class="o">*</span><span class="n">uniqueId</span><span class="p">;</span>
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<span class="k">-</span> <span class="p">(</span><span class="n">instancetype</span><span class="p">)</span><span class="nf">initWithFirstName</span><span class="p">:(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">firstName</span> <span class="nf">lastName</span><span class="p">:(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">lastName</span> <span class="nf">uniqueId</span><span class="p">:(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">uniqueId</span><span class="p">;</span>
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<span class="k">@end</span>
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</code></pre>
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<p>and</p>
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<pre class="highlight objective_c"><code><span class="c1">// PersonModel.m
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</span><span class="k">@implementation</span> <span class="nc">PersonModel</span>
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<span class="k">-</span> <span class="p">(</span><span class="n">instancetype</span><span class="p">)</span><span class="nf">initWithFirstName</span><span class="p">:(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">firstName</span> <span class="nf">lastName</span><span class="p">:(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">lastName</span> <span class="nf">uniqueId</span><span class="p">:(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">uniqueId</span>
|
|
<span class="p">{</span>
|
|
<span class="k">if</span> <span class="p">((</span><span class="n">self</span> <span class="o">=</span> <span class="p">[</span><span class="n">super</span> <span class="nf">init</span><span class="p">]))</span> <span class="p">{</span>
|
|
<span class="n">_firstName</span> <span class="o">=</span> <span class="p">[</span><span class="n">firstName</span> <span class="nf">copy</span><span class="p">];</span>
|
|
<span class="n">_lastName</span> <span class="o">=</span> <span class="p">[</span><span class="n">lastName</span> <span class="nf">copy</span><span class="p">];</span>
|
|
<span class="n">_uniqueId</span> <span class="o">=</span> <span class="p">[</span><span class="n">uniqueId</span> <span class="nf">copy</span><span class="p">];</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="k">return</span> <span class="n">self</span><span class="p">;</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="k">-</span> <span class="p">(</span><span class="n">id</span><span class="o"><</span><span class="n">NSObject</span><span class="o">></span><span class="p">)</span><span class="n">diffIdentifier</span>
|
|
<span class="p">{</span>
|
|
<span class="k">return</span> <span class="n">_uniqueId</span><span class="p">;</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="o">-</span> <span class="p">(</span><span class="n">BOOL</span><span class="p">)</span><span class="n">isEqualToDiffableObject</span><span class="o">:</span><span class="p">(</span><span class="n">nullable</span> <span class="n">id</span><span class="p">)</span><span class="n">object</span>
|
|
<span class="p">{</span>
|
|
<span class="k">return</span> <span class="p">[</span><span class="n">self</span> <span class="nf">isEqual</span><span class="p">:</span><span class="n">object</span><span class="p">];</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="o">-</span> <span class="p">(</span><span class="n">BOOL</span><span class="p">)</span><span class="n">isEqual</span><span class="o">:</span><span class="p">(</span><span class="n">PersonModel</span> <span class="o">*</span><span class="p">)</span><span class="n">object</span>
|
|
<span class="p">{</span>
|
|
<span class="k">if</span> <span class="p">(</span><span class="n">self</span> <span class="o">==</span> <span class="n">object</span><span class="p">)</span> <span class="p">{</span>
|
|
<span class="k">return</span> <span class="nb">YES</span><span class="p">;</span>
|
|
<span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">self</span> <span class="o">==</span> <span class="nb">nil</span> <span class="o">||</span> <span class="n">object</span> <span class="o">==</span> <span class="nb">nil</span> <span class="o">||</span> <span class="o">!</span><span class="p">[</span><span class="n">object</span> <span class="nf">isKindOfClass</span><span class="p">:[</span><span class="n">self</span> <span class="nf">class</span><span class="p">]])</span> <span class="p">{</span>
|
|
<span class="k">return</span> <span class="nb">NO</span><span class="p">;</span>
|
|
<span class="p">}</span>
|
|
<span class="k">return</span>
|
|
<span class="p">(</span><span class="n">_firstName</span> <span class="o">==</span> <span class="n">object</span><span class="o">-></span><span class="n">_firstName</span> <span class="p">?</span> <span class="nb">YES</span> <span class="p">:</span> <span class="p">[</span><span class="n">_firstName</span> <span class="nf">isEqual</span><span class="p">:</span><span class="n">object</span><span class="o">-></span><span class="n">_firstName</span><span class="p">])</span> <span class="o">&&</span>
|
|
<span class="p">(</span><span class="n">_lastName</span> <span class="o">==</span> <span class="n">object</span><span class="o">-></span><span class="n">_lastName</span> <span class="p">?</span> <span class="nb">YES</span> <span class="p">:</span> <span class="p">[</span><span class="n">_lastName</span> <span class="nf">isEqual</span><span class="p">:</span><span class="n">object</span><span class="o">-></span><span class="n">_lastName</span><span class="p">])</span> <span class="o">&&</span>
|
|
<span class="p">(</span><span class="n">_uniqueId</span> <span class="o">==</span> <span class="n">object</span><span class="o">-></span><span class="n">_uniqueId</span> <span class="p">?</span> <span class="nb">YES</span> <span class="p">:</span> <span class="p">[</span><span class="n">_uniqueId</span> <span class="nf">isEqual</span><span class="p">:</span><span class="n">object</span><span class="o">-></span><span class="n">_uniqueId</span><span class="p">]);</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="o">-</span> <span class="p">(</span><span class="n">id</span><span class="p">)</span><span class="n">copyWithZone</span><span class="o">:</span><span class="p">(</span><span class="n">nullable</span> <span class="n">NSZone</span> <span class="o">*</span><span class="p">)</span><span class="n">zone</span>
|
|
<span class="p">{</span>
|
|
<span class="k">return</span> <span class="n">self</span><span class="p">;</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="o">-</span> <span class="p">(</span><span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="n">description</span>
|
|
<span class="p">{</span>
|
|
<span class="k">return</span> <span class="p">[</span><span class="n">NSString</span> <span class="nf">stringWithFormat</span><span class="p">:</span><span class="s">@"%@ - </span><span class="se">\n\t</span><span class="s"> firstName: %@; </span><span class="se">\n\t</span><span class="s"> lastName: %@; </span><span class="se">\n\t</span><span class="s"> uniqueId: %@; </span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="p">[</span><span class="n">super</span> <span class="nf">description</span><span class="p">],</span> <span class="n">_firstName</span><span class="p">,</span> <span class="n">_lastName</span><span class="p">,</span> <span class="n">_uniqueId</span><span class="p">];</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="o">-</span> <span class="p">(</span><span class="n">NSUInteger</span><span class="p">)</span><span class="n">hash</span>
|
|
<span class="p">{</span>
|
|
<span class="n">NSUInteger</span> <span class="n">subhashes</span><span class="p">[]</span> <span class="o">=</span> <span class="p">{[</span><span class="n">_firstName</span> <span class="nf">hash</span><span class="p">],</span> <span class="p">[</span><span class="n">_lastName</span> <span class="nf">hash</span><span class="p">],</span> <span class="p">[</span><span class="n">_uniqueId</span> <span class="nf">hash</span><span class="p">]};</span>
|
|
<span class="n">NSUInteger</span> <span class="n">result</span> <span class="o">=</span> <span class="n">subhashes</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span>
|
|
<span class="k">for</span> <span class="p">(</span><span class="kt">int</span> <span class="n">ii</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="n">ii</span> <span class="o"><</span> <span class="mi">3</span><span class="p">;</span> <span class="o">++</span><span class="n">ii</span><span class="p">)</span> <span class="p">{</span>
|
|
<span class="kt">unsigned</span> <span class="kt">long</span> <span class="kt">long</span> <span class="n">base</span> <span class="o">=</span> <span class="p">(((</span><span class="kt">unsigned</span> <span class="kt">long</span> <span class="kt">long</span><span class="p">)</span><span class="n">result</span><span class="p">)</span> <span class="o"><<</span> <span class="mi">32</span> <span class="o">|</span> <span class="n">subhashes</span><span class="p">[</span><span class="nf">ii</span><span class="p">]);</span>
|
|
<span class="n">base</span> <span class="o">=</span> <span class="p">(</span><span class="o">~</span><span class="n">base</span><span class="p">)</span> <span class="o">+</span> <span class="p">(</span><span class="n">base</span> <span class="o"><<</span> <span class="mi">18</span><span class="p">);</span>
|
|
<span class="n">base</span> <span class="o">^=</span> <span class="p">(</span><span class="n">base</span> <span class="o">>></span> <span class="mi">31</span><span class="p">);</span>
|
|
<span class="n">base</span> <span class="o">*=</span> <span class="mi">21</span><span class="p">;</span>
|
|
<span class="n">base</span> <span class="o">^=</span> <span class="p">(</span><span class="n">base</span> <span class="o">>></span> <span class="mi">11</span><span class="p">);</span>
|
|
<span class="n">base</span> <span class="o">+=</span> <span class="p">(</span><span class="n">base</span> <span class="o"><<</span> <span class="mi">6</span><span class="p">);</span>
|
|
<span class="n">base</span> <span class="o">^=</span> <span class="p">(</span><span class="n">base</span> <span class="o">>></span> <span class="mi">22</span><span class="p">);</span>
|
|
<span class="n">result</span> <span class="o">=</span> <span class="n">base</span><span class="p">;</span>
|
|
<span class="p">}</span>
|
|
<span class="k">return</span> <span class="n">result</span><span class="p">;</span>
|
|
<span class="p">}</span>
|
|
|
|
<span class="k">@end</span>
|
|
</code></pre>
|
|
<h2 id='documentation' class='heading'>Documentation</h2>
|
|
|
|
<p>Please see the main remodel repository for <a href="https://github.com/facebook/remodel">additional documentation</a></p>
|
|
|
|
</section>
|
|
</section>
|
|
<section id="footer">
|
|
<p>© 2019 <a class="link" href="https://twitter.com/fbOpenSource" target="_blank" rel="external">Instagram</a>. All rights reserved. (Last updated: 2019-11-20)</p>
|
|
<p>Generated by <a class="link" href="https://github.com/realm/jazzy" target="_blank" rel="external">jazzy ♪♫ v0.12.0</a>, a <a class="link" href="https://realm.io" target="_blank" rel="external">Realm</a> project.</p>
|
|
</section>
|
|
</article>
|
|
</div>
|
|
</body>
|
|
</div>
|
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</html>
|