Preserve 'input_class' parameter.

flask_admin/templates/bootstrap2/admin/model/layout.html

@@ -58,7 +58,7 @@
     <div class="clearfix"></div>
 {% endmacro %}
 
-{% macro search_form() %}
+{% macro search_form(input_class=None) %}
 <form method="GET" action="{{ return_url }}" class="search-form">
     {% for flt_name, flt_value in filter_args.items() %}
     <input type="hidden" name="{{ flt_name }}" value="{{ flt_value }}">
@@ -76,13 +76,13 @@
     {%- if search_placeholder %}{% set full_search_placeholder = [full_search_placeholder, search_placeholder] | join(": ") %}{% endif %}
     {% if search %}
     <div class="input-append">
-            <input type="search" name="search" class="input-xlarge" value="{{ search }}" placeholder="{{ full_search_placeholder }}">
+            <input type="search" name="search" class="input-xlarge{% if input_class %} {{ input_class }}{% endif %}" value="{{ search }}" placeholder="{{ full_search_placeholder }}">
             <a href="{{ clear_search_url }}" class="clear add-on">
                 <i class="fa fa-times icon-remove"></i>
             </a>
     </div>
     {% else %}
-    <input type="search" name="search" class="input-xlarge" value="" placeholder="{{ full_search_placeholder }}">
+    <input type="search" name="search" class="input-xlarge{% if input_class %} {{ input_class }}{% endif %}" value="" placeholder="{{ full_search_placeholder }}">
     {% endif %}
 </form>
 {% endmacro %}

flask_admin/templates/bootstrap3/admin/model/layout.html

@@ -58,7 +58,7 @@
     <div class="clearfix"></div>
 {% endmacro %}
 
-{% macro search_form() %}
+{% macro search_form(input_class=None) %}
 <form method="GET" action="{{ return_url }}" class="navbar-form navbar-left" role="search">
     {% for flt_name, flt_value in filter_args.items() %}
     <input type="hidden" name="{{ flt_name }}" value="{{ flt_value }}">
@@ -78,12 +78,12 @@
     {%- set input_size = [[full_search_placeholder | length, 30] | max, max_size] | min %}
     {% if search %}
     <div class="input-group">
-        <input type="search" name="search" value="{{ search }}" class="form-control" size="{{ input_size }}" placeholder="{{ full_search_placeholder }}">
+        <input type="search" name="search" value="{{ search }}" class="form-control{% if input_class %} {{ input_class }}{% endif %}" size="{{ input_size }}" placeholder="{{ full_search_placeholder }}">
         <a href="{{ clear_search_url }}" class="input-group-addon clear"><span class="fa fa-times glyphicon glyphicon-remove"></span></a>
     </div>
     {% else %}
     <div class="form-group">
-        <input type="search" name="search" value="" class="form-control" size="{{ input_size }}" placeholder="{{ full_search_placeholder }}">
+        <input type="search" name="search" value="" class="form-control{% if input_class %} {{ input_class }}{% endif %}" size="{{ input_size }}" placeholder="{{ full_search_placeholder }}">
     </div>
     {% endif %}
 </form>