{% macro render_field(field) %}
  <div class="input-field">
    <i class="prefix">{{ field.name[0:1]|upper }}</i>
      {{ field.label }}
      {{ field(data_length='255')|safe }}
  </div>
  {% if field.errors %}
    {% for error in field.errors %}
      <span class="helper-text red-text">{{ error }}</span>
    {% endfor %}
  {% endif %}
{% endmacro %}


{% macro render_field_with_value(field, corpus_file) %}
  <div class="input-field">
    <i class="prefix">{{ field.name[0:1]|upper }}</i>
      {{ field.label }}
      {{ field(value=corpus_file[field.name], data_length='255')| safe }}
  </div>
  {% if field.errors %}
    {% for error in field.errors %}
      <span class="helper-text red-text">{{ error }}</span>
    {% endfor %}
  {% endif %}
{% endmacro %}


{% macro submit_button(input) %}
  <button class="btn waves-effect waves-light" id="{{ input.id }}" name="{{ input.name }}" type="submit" value="{{ input.label.text }}">{{ input.label.text }}<i class="material-icons right">send</i></button>
{% endmacro %}