oshipka/vm_gen/templates/html/_create.html

<form action="{{ url_for('create_[[ name|camel_to_snake ]]') }}" method="post">
    <input type="hidden" name="_next" value="{{ _next or request.args.get('_next') or url_for('list_[[ name|camel_to_snake ]]') }}"/>
    [%- for column in columns %]
      <label for="input-[[ name|camel_to_snake ]]-[[ column.name ]]">[[ column.name ]]</label>:
      [%- if column.type in ['relationship'] %]
        <select id="input-[[ name|camel_to_snake ]]-[[ column.name ]]" [%- if column.multiple %]multiple
               name="_m_n_[[ column.name|pluralize ]]"[% else %]name="[[ column.name ]]_id"[%- endif %]>
        [%- if not column.secondary %]
            <option selected="selected">Choose...</option>
        [%- endif %]
                {%- for sub_instance in model_views.[[ column.name ]].model.query.all() %}
            <option value="{{ sub_instance.id }}" {% if instance and instance.id == sub_instance.id %}selected="selected"{% endif %}>{{ sub_instance }}</option>
                {%- endfor %}
        </select>
      [%- elif column.type in ['choice', ] %]
        <select id="input-[[ name|camel_to_snake ]]-[[ column.name ]]"
               name="[[ column.name ]]_id">
            [%- for value, display in column.choices.items() %]
            <option value="[[ value ]]" {% if instance and instance.[[ column.name ]] == "[[ value ]]" %}selected="selected"{% endif %}>[[ display ]]</option>
            [%- endfor %]
        </select>
      [%- elif column.type in ['number', 'int', 'integer', ] %]
        <input id="input-[[ name|camel_to_snake ]]-[[ column.name ]]"
               type="number" name="[[ column.name ]]"
        />
      [%- else %]
        <input id="input-[[ name|camel_to_snake ]]-[[ column.name ]]"
               type="text" name="[[ column.name ]]" autocomplete="off"
        />
      [%- endif %]
    <br>
    [%- endfor %]
    <input type="submit">
</form>