查看“Django/docs/3.0.x/ref/contrib/postgres/validators”的源代码

{{DISPLAYTITLE:验证器 — Django 文档}}
<div id="module-django.contrib.postgres.validators" class="section">

<span id="validators"></span>
= 验证器 =

这些验证器可从 <code>django.contrib.postgres.validators</code> 模块获得。

<div id="keysvalidator" class="section">

== KeysValidator ==

<dl>
<dt>''<span class="pre">class</span>'' <span class="sig-name descname"><span class="pre">KeysValidator</span></span><span class="sig-paren">(</span>''<span class="n"><span class="pre">keys</span></span>'', ''<span class="n"><span class="pre">strict</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span>'', ''<span class="n"><span class="pre">messages</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span>''<span class="sig-paren">)</span></dt>
<dd><p>验证给定的键是否包含在值中。 如果 <code>strict</code> 是 <code>True</code>，它还会检查是否存在其他键。</p>
<p>传递的 <code>messages</code> 应该是一个包含 <code>missing_keys</code> 和/或 <code>extra_keys</code> 键的字典。</p>
<div class="admonition note">

<p>笔记</p>
<p>请注意，这仅检查给定键是否存在，而不是检查键的值是否为非空。</p>

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<div id="range-validators" class="section">

== 范围验证器 ==

<div id="rangemaxvaluevalidator" class="section">

=== RangeMaxValueValidator ===

; ''<span class="pre">class</span>'' <span class="sig-name descname"><span class="pre">RangeMaxValueValidator</span></span><span class="sig-paren">(</span>''<span class="n"><span class="pre">limit_value</span></span>'', ''<span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span>''<span class="sig-paren">)</span>
: 验证范围的上限不大于 <code>limit_value</code>。


</div>
<div id="rangeminvaluevalidator" class="section">

=== RangeMinValueValidator ===

; ''<span class="pre">class</span>'' <span class="sig-name descname"><span class="pre">RangeMinValueValidator</span></span><span class="sig-paren">(</span>''<span class="n"><span class="pre">limit_value</span></span>'', ''<span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span>''<span class="sig-paren">)</span>
: 验证范围的下限不小于 <code>limit_value</code>。


</div>

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