edit_table_row.twig

<tr>
  <input name="orig_col_name[{{ row_num }}]" type="hidden" value="{{ row['col_name'] }}">
  <td name="col_name" class="text-nowrap">
    {% include 'columns_definitions/column_name.twig' with {
      'column_number': row_num,
      'ci': 0,
      'ci_offset': 0,
      'column_meta': {'Field': row['col_name']},
      'has_central_columns_feature': false,
      'max_rows': max_rows
    } only %}
  </td>

  <td name="col_type" class="text-nowrap">
    <select class="column_type" name="field_type[{{ row_num }}]" id="field_{{ row_num }}_1">
      {{ get_supported_datatypes(row['col_type']|upper) }}
    </select>
  </td>

  <td class="text-nowrap" name="col_length">
    <input id="field_{{ row_num }}_2" type="text" name="field_length[{{ row_num }}]" size="8" value="{{ row['col_length'] }}" class="textfield">
    <p class="enum_notice" id="enum_notice_{{ row_num }}_2">
      <a href="#" class="open_enum_editor">{{ t('Edit ENUM/SET values') }}</a>
    </p>
  </td>

  <td class="text-nowrap" name="col_default">
    <select name="field_default_type[{{ row_num }}]" id="field_{{ row_num }}_3" class="default_type">
      <option value="NONE"{{ meta['DefaultType'] is defined and meta['DefaultType'] == 'NONE' ? ' selected' }}>
        {{ t('None', context = 'for default') }}
      </option>
      <option value="USER_DEFINED"{{ meta['DefaultType'] is defined and meta['DefaultType'] == 'USER_DEFINED' ? ' selected' }}>
        {{ t('As defined:') }}
      </option>
      <option value="NULL"{{ meta['DefaultType'] is defined and meta['DefaultType'] == 'NULL' ? ' selected' }}>
        NULL
      </option>
      <option value="CURRENT_TIMESTAMP"{{ meta['DefaultType'] is defined and meta['DefaultType'] == 'CURRENT_TIMESTAMP' ? ' selected' }}>
        CURRENT_TIMESTAMP
      </option>
    </select>
    {% if char_editing == 'textarea' %}
      <textarea name="field_default_value[{{ row_num }}]" cols="15" class="textfield default_value">{{ row['col_default'] }}</textarea>
    {% else %}
      <input type="text" name="field_default_value[{{ row_num }}]" size="12" value="{{ row['col_default'] }}" class="textfield default_value">
    {% endif %}
  </td>

  <td name="collation" class="text-nowrap">
    <select lang="en" dir="ltr" name="field_collation[{{ row_num }}]" id="field_{{ row_num }}_4">
      <option value=""></option>
      {% for charset in charsets %}
        <optgroup label="{{ charset.getName() }}" title="{{ charset.getDescription() }}">
          {% for collation in collations[charset.getName()] %}
            <option value="{{ collation.getName() }}" title="{{ collation.getDescription() }}"{{ row['col_collation'] == collation.getName() ? ' selected' }}>
              {{ collation.getName() }}
            </option>
          {% endfor %}
        </optgroup>
      {% endfor %}
    </select>
  </td>

  <td class="text-nowrap" name="col_attribute">
    {% include 'columns_definitions/column_attribute.twig' with {
      'column_number': row_num,
      'ci': 5,
      'ci_offset': 0,
      'column_meta': [],
      'extracted_columnspec': {'attribute': row['col_attribute']},
      'submit_attribute': false,
      'attribute_types': attribute_types
    } only %}
  </td>

  <td class="text-nowrap" name="col_isNull">
    <input name="field_null[{{ row_num }}]" id="field_{{ row_num }}_6" type="checkbox" value="YES" class="allow_null"
      {{- row['col_isNull'] is not empty and row['col_isNull'] != 'NO' and row['col_isNull'] != 'NOT NULL' and row['col_isNull'] != 0 ? ' checked' }}>
  </td>

  <td class="text-nowrap" name="col_extra">
    <input name="col_extra[{{ row_num }}]" id="field_{{ row_num }}_7" type="checkbox" value="auto_increment"
      {{- row['col_extra'] is not empty and row['col_extra'] == 'auto_increment' ? ' checked' }}>
  </td>
</tr>