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<h1 id="contribution-guide">Contribution Guide<a class="headerlink" href="#contribution-guide" title="Link to this heading">¶</a></h1>
<div class="toctree-wrapper compound">
</div>
<p>If you want to contribute, check out the issues, or just create a PR.</p>
<p>Tortoise ORM is a volunteer effort. We encourage you to pitch in and join the team!</p>
<p>Please have a look at the <a class="reference internal" href="CODE_OF_CONDUCT.html#code-conduct"><span class="std std-ref">Contributor Covenant Code of Conduct</span></a></p>
<h2 id="filing-a-bug-or-requesting-a-feature">Filing a bug or requesting a feature<a class="headerlink" href="#filing-a-bug-or-requesting-a-feature" title="Link to this heading">¶</a></h2>
<p>Please check if there isn’t an existing issue or pull request open that addresses your issue.
If not you are welcome to open one.</p>
<p>If you have an incomplete change, but won’t/can’t continue working on it, please create a PR in any case and mark it as <code class="docutils literal notranslate"><span class="pre">(WIP)</span></code> so we can help each other.</p>
<h2 id="project-structure">Project structure<a class="headerlink" href="#project-structure" title="Link to this heading">¶</a></h2>
<p>We have a <code class="docutils literal notranslate"><span class="pre">Makefile</span></code> that has the common operations listed, to get started just type <code class="docutils literal notranslate"><span class="pre">make</span></code>:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><code><span class="n">Tortoise</span> <span class="n">ORM</span> <span class="n">development</span> <span class="n">makefile</span>
<span class="n">usage</span><span class="p">:</span> <span class="n">make</span> <span class="o"><</span><span class="n">target</span><span class="o">></span>
<span class="n">Targets</span><span class="p">:</span>
<span class="n">up</span> <span class="n">Updates</span> <span class="n">dev</span><span class="o">/</span><span class="n">test</span> <span class="n">dependencies</span>
<span class="n">deps</span> <span class="n">Ensure</span> <span class="n">dev</span><span class="o">/</span><span class="n">test</span> <span class="n">dependencies</span> <span class="n">are</span> <span class="n">installed</span>
<span class="n">check</span> <span class="n">Checks</span> <span class="n">that</span> <span class="n">build</span> <span class="ow">is</span> <span class="n">sane</span>
<span class="n">test</span> <span class="n">Runs</span> <span class="nb">all</span> <span class="n">tests</span>
<span class="n">docs</span> <span class="n">Builds</span> <span class="n">the</span> <span class="n">documentation</span>
<span class="n">style</span> <span class="n">Auto</span><span class="o">-</span><span class="n">formats</span> <span class="n">the</span> <span class="n">code</span>
<span class="n">lint</span> <span class="n">Auto</span><span class="o">-</span><span class="n">formats</span> <span class="n">the</span> <span class="n">code</span> <span class="ow">and</span> <span class="n">check</span> <span class="nb">type</span> <span class="n">hints</span>
</code></pre></div>
</div>
<p>So to run the tests you just need to run <code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test</span></code>, etc…</p>
<p>The code is structured in the following directories:</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">docs/</span></code>:</dt><dd><p>Documentation</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">examples/</span></code>:</dt><dd><p>Example code</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">tortoise/</span></code>:</dt><dd><p>Base Tortoise ORM</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">tortoise/fields/</span></code>:</dt><dd><p>The Fields are defined here.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">tortoise/backends/</span></code>:</dt><dd><p>DB Backends, such as <code class="docutils literal notranslate"><span class="pre">sqlite</span></code>, <code class="docutils literal notranslate"><span class="pre">asyncpg</span></code>, <code class="docutils literal notranslate"><span class="pre">psycopg</span></code> & <code class="docutils literal notranslate"><span class="pre">mysql</span></code></p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">tortoise/backends/base/</span></code>:</dt><dd><p>Common DB Backend code</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">tortoise/contrib/</span></code>:</dt><dd><p>Anything that helps people use the project, such as Testing framework and linter plugins</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">tests/</span></code>:</dt><dd><p>The Tortoise test code</p>
</dd>
</dl>
<h2 id="coding-guideline">Coding Guideline<a class="headerlink" href="#coding-guideline" title="Link to this heading">¶</a></h2>
<p>We believe in keeping the code simple, so it is easier to test and there are fewer places for bugs to hide.</p>
<h3 id="priorities">Priorities<a class="headerlink" href="#priorities" title="Link to this heading">¶</a></h3>
<p>An important part of Tortoise ORM is that we want a simple interface, that only does what is expected.
As this is a value that is different for different people, we have settled on:</p>
<ul class="simple">
<li><p>Model/QuerySet usage should be explicit and concise.</p></li>
<li><p>Keep it simple, as simple code not only often runs faster, but has less bugs too.</p></li>
<li><p>Correctness > Ease-Of-Use > Performance > Maintenance</p></li>
<li><p>Test everything.</p></li>
<li><p>Only do performance/memory optimisation when you have a repeatable benchmark to measure with.</p></li>
</ul>
<h3 id="style">Style<a class="headerlink" href="#style" title="Link to this heading">¶</a></h3>
<p>We try and automate as much as we can, so a simple <code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">style</span></code> (or <code class="docutils literal notranslate"><span class="pre">uvx</span> <span class="pre">prek</span> <span class="pre">run</span> <span class="pre">--all-files</span></code>) will do automated formatting, style checking and linting, but these don’t pick up on the non-obvious style preferences.
Before creating a PR, please run <code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">check</span></code> (or <code class="docutils literal notranslate"><span class="pre">uvx</span> <span class="pre">prek</span> <span class="pre">run</span> <span class="pre">--all-files</span> <span class="pre">--group</span> <span class="pre">check</span></code>) to ensure code quality.</p>
<p>Tortoise ORM follows a the following agreed upon style:</p>
<ul class="simple">
<li><p>Keep to PEP8 where you can</p></li>
<li><p>Max line-length is changed to 100</p></li>
<li><dl class="simple">
<dt>Always try to separate out terms clearly rather than concatenate words directly:</dt><dd><ul>
<li><p><code class="docutils literal notranslate"><span class="pre">some_purpose</span></code> instead of <code class="docutils literal notranslate"><span class="pre">somepurpose</span></code></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">SomePurpose</span></code> instead of <code class="docutils literal notranslate"><span class="pre">Somepurpose</span></code></p></li>
</ul>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt>Keep in mind the targeted Python versions of <code class="docutils literal notranslate"><span class="pre">>=3.10</span></code>:</dt><dd><ul>
<li><p>Do use f-strings</p></li>
</ul>
</dd>
</dl>
</li>
<li><p>Please try and provide type annotations where you can, it will improve auto-completion in editors, and better static analysis.</p></li>
</ul>
<h2 id="running-tests">Running tests<a class="headerlink" href="#running-tests" title="Link to this heading">¶</a></h2>
<p>Running tests natively on windows isn’t supported (yet). Best way to run them atm is by using WSL.
Postgres uses the default <code class="docutils literal notranslate"><span class="pre">postgres</span></code> user, mysql uses <code class="docutils literal notranslate"><span class="pre">root</span></code>. If either of them has a password you can set it with the <code class="docutils literal notranslate"><span class="pre">TORTOISE_POSTGRES_PASS</span></code> and <code class="docutils literal notranslate"><span class="pre">TORTOISE_MYSQL_PASS</span></code> env variables respectively.</p>
<h3 id="different-types-of-tests">Different types of tests<a class="headerlink" href="#different-types-of-tests" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test</span></code>: most basic quick test. only runs the tests on in an memory sqlite database without generating a coverage report.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test_sqlite</span></code>: Runs the tests on a sqlite in memory database</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test_postgres_asyncpg</span></code>: Runs the asyncpg tests on the postgres database</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test_postgres_psycopg</span></code>: Runs the psycopg tests on the postgres database</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test_mysql_myisam</span></code>: Runs the tests on the mysql database using the <code class="docutils literal notranslate"><span class="pre">MYISAM</span></code> storage engine (no transactions)</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test_mysql</span></code>: Runs the tests on the mysql database</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">testall</span></code>: runs the tests on all 4 database types: sqlite (in memory), postgresql, MySQL-MyISAM and MySQL-InnoDB</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">green</span></code>: runs the same tests as <code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test</span></code>, ensures the green plugin works</p></li>
</ul>
<h3 id="things-to-be-aware-of-when-running-the-test-suite">Things to be aware of when running the test suite<a class="headerlink" href="#things-to-be-aware-of-when-running-the-test-suite" title="Link to this heading">¶</a></h3>
<ul class="simple">
<li><p>Some tests always run regardless of what test suite you are running (the connection tests for mysql and postgres for example, you don’t need a database running as it doesn’t actually connect though)</p></li>
<li><p>Some tests use hardcoded databases (usually sqlite) for testing, regardless of what DB url you specified.</p></li>
<li><p>The postgres driver does not work under Pypy so those tests will be skipped if you are running under pypy</p></li>
<li><p>You can run only specific tests by running <code class="docutils literal notranslate"><span class="pre">pytest</span> <span class="pre"><testfiles></span></code> or <code class="docutils literal notranslate"><span class="pre">green</span> <span class="pre">-s</span> <span class="pre">1</span> <span class="pre"><testfile></span></code></p></li>
<li><dl class="simple">
<dt>If you want a peek under the hood of test that hang to debug try running them with <code class="docutils literal notranslate"><span class="pre">green</span> <span class="pre">-s</span> <span class="pre">1</span> <span class="pre">-vv</span> <span class="pre">-d</span> <span class="pre">-a</span> <span class="pre"><test></span></code></dt><dd><ul>
<li><p><code class="docutils literal notranslate"><span class="pre">-s</span> <span class="pre">1</span></code> means it only runs one test at a time</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">-vv</span></code> very verbose output</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">-d</span></code> log debug output</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">-a</span></code> don’t capture stdout but just let it output</p></li>
</ul>
</dd>
</dl>
</li>
<li><p>Mysql tends to be relatively slow but there are some settings you can tweak to make it faster, however this also means less redundant. Use at own risk: <a class="reference external" href="http://www.tocker.ca/2013/11/04/reducing-mysql-durability-for-testing.html">http://www.tocker.ca/2013/11/04/reducing-mysql-durability-for-testing.html</a></p></li>
</ul>
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