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{{ form_widget(form.save,{'attr': {'class': 'btn btn-sm btn-danger'},'label': 'Submit form'}) }}
我想在按钮中插入一个fontawsome图标.我试过了:
{{ form_widget(form.save,'label': '<i class="fa fa-envelope-o"></i> Submit form'}) }}
但它不起作用;明显
知道怎么做吗?
{% extends '::base.html.twig' %} {% form_theme form _self %} {%- block submit_widget -%} {%- set type = type|default('submit') -%} {%- if label is empty -%} {%- if label_format is not empty -%} {% set label = label_format|replace({ '%name%': name,'%id%': id,}) %} {%- else -%} {% set label = name|humanize %} {%- endif -%} {%- endif -%} <button type="{{ type|default('button') }}" {{ block('button_attributes') }}> <i class="fa fa-envelope-o"></i> {{ label|trans({},translation_domain) }} </button> {%- endblock submit_widget -%} {% block content %} {# ... render the form #} {{ form_row(form.agE) }} {% endblock %}
编辑
您还可以将ButtonType扩展为允许icon_before和icon_after,以便在表单定义中轻松添加图标:
$form->add('submitReportV2Show',SubmitType::class,array( 'label' => 'My test','icon_before' => 'fa-refresh','icon_after' => 'fa-refresh','attr' => array('class' => 'btn btn-sm btn-success' )));
创建一个新类src / bundle / Form / Extension:
namespace YourBundle\ToolBoxBundle\Form\Extension; use Symfony\Component\Form\AbstractTypeExtension; use Symfony\Component\Form\Extension\Core\Type\ButtonType; use Symfony\Component\Form\FormInterface; use Symfony\Component\Form\FormView; use Symfony\Component\OptionsResolver\OptionsResolver; class IconButtonExtension extends AbstractTypeExtension { public function getExtendedType() { return ButtonType::class; } public function buildView(FormView $view,FormInterface $form,array $options) { $view->vars['icon_before'] = $options['icon_before'] ?? ''; $view->vars['icon_after'] = $options['icon_after'] ?? ''; } public function configureOptions(OptionsResolver $resolver) { $resolver->setDefaults([ 'icon_before' => null,'icon_after' => null ]); } }
在服务src / bundle / resources / config / service.yml中声明它
bundle.tools.form.type_extension.icon_button: class: YourBundle\ToolBoxBundle\Form\Extension\IconButtonExtension tags: - { name: 'form.type_extension',extended_type: 'Symfony\Component\Form\Extension\Core\Type\ButtonType' }
应用程序/资源/视图/表格/ fields.html.twig
{%- block button_widget -%} {%- if label is empty -%} {%- if label_format is not empty -%} {% set label = label_format|replace({ '%name%': name,}) %} {%- elseif label is same as(false) -%} {% set translation_domain = false %} {%- else -%} {% set label = name|humanize %} {%- endif -%} {%- endif -%} <button type="{{ type|default('button') }}" {{ block('button_attributes') }}> {% if icon_before is defined and icon_before is not null %} <i class="fa {{ icon_before }}"></i> {% endif %} {{ translation_domain is same as(false) ? label : label|trans({},translation_domain) }} {% if icon_after is defined and icon_after is not null %} <i class="fa {{ icon_after }}"></i> {% endif %} </button> {%- endblock button_widget -%}
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