rm-constraint-validations" tabindex="-1">Form Constraint Validations <a class="header-anchor" href="#form-constraint-validations" aria-label="Permalink to &quot;Form Constraint Validations&quot;">​</a></h1><p>Aside from simply collecting data and submitting it to the server, form data has <em>constraints</em> that must be validated before data is accepted. Brut provides support for both client-side and server-side constraints.</p><h2 id="overview" tabindex="-1">Overview <a class="header-anchor" href="#ove