django-import-export 显示model verbose_name

安装并配置django-import-export

pip install django-import-export
pip install django-simpleui

 

配置settings.py

# settings.py
INSTALLED_APPS = (
    'simpleui',
    'import_export',
)

建立model

from django.db import models


# Create your models here.
# 商品表
class commodity(models.Model):
    name = models.CharField(max_length=225, verbose_name="商品名称", blank=True, default="")
    desc = models.TextField(verbose_name="商品描述", blank=True)

    class Meta:
        verbose_name_plural = "商品表"

    def __str__(self):
        return self.name

生成数据库迁移

python manage.py makemigrations
python manage.py migrate

 

配置 admin.py

from django.contrib import admin
from app import models
from import_export import resources
from import_export.admin import ImportExportModelAdmin
from django.apps import apps

admin.site.site_header = "XXX后台管理"
admin.site.site_title = "XXX后台"


# Register your models here.
class commodityResource(resources.ModelResource):

    def __init__(self):
        super(commodityResource, self).__init__()

        field_list = models.commodity._meta.fields
        self.vname_dict = {}
        for i in field_list:
            self.vname_dict[i.name] = i.verbose_name

    # 默认导入导出field的column_name为字段的名称，这里修改为字段的verbose_name
    def get_export_fields(self):
        fields = self.get_fields()
        for field in fields:
            field_name = self.get_field_name(field)
            # 如果我们设置过verbose_name，则将column_name替换为verbose_name。否则维持原有的字段名
            if field_name in self.vname_dict.keys():
                field.column_name = self.vname_dict[field_name]
        return fields

    def after_import(self, dataset, result, using_transactions, dry_run, **kwargs):
        print("after_import")

    def after_import_instance(self, instance, new, **kwargs):
        print("after_import_instance")

    class Meta:
        model = models.commodity
        skip_unchanged = True
        report_skipped = True
        fields = ("id", "name", "desc")


@admin.register(models.commodity)
class AppTypeAdmin(ImportExportModelAdmin):
    list_display = ("name", "desc")
    list_display_links = ("name", "desc")
    search_fields = ('name', 'desc')
    model_icon = "fa fa-tag"
    list_per_page = 50
    resource_class = commodityResource

    def save_model(self, request, obj, form, change):
        super().save_model(request, obj, form, change)

运行效果图如下:

 

点击导入页面如下:

实现思路如下:

通过重写导入页面,在应用目录(app)下-->templatetags-->apptags.py

配置settings.py

libraries 节点

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')]
        ,
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
            'libraries': {
                'apptags': 'app.templatetags.apptags'
            },
        },
    },
]

apptags.py

from django import template
from django.apps import apps

register = template.Library()  # 这一句必须这样写

@register.simple_tag(takes_context=True)
def import_head_tag(context):
    verbose_names = []
    fieldlists = context.dicts[3]["fields"]
    opts = str(context.dicts[3]["opts"]).split(".")
    for f in fieldlists:
        fields = apps.get_model(opts[0], opts[1])._meta.fields
        for fs in fields:
            if (str(fs).split(".")[-1] == str(f)):
                verbose_names.append(fs.verbose_name)
                break

    return "，".join(verbose_names)

重写django-import-export 导入页面,在项目templates下新建 admin-->import_export--> import.html 

import.html代码如下  将{{ fields|join:", " }}  替换成 apptags.py 定义的 import_head_tag 方法即可

{% extends "admin/import_export/base.html" %}
{% load static simpletags apptags %}
{% load i18n %}
{% load admin_urls %}
{% load import_export_tags %}
{% load static %}

{% block extrastyle %}{{ block.super }}"stylesheet" type="text/css" href="{% static "import_export/import.css" %}" />{% endblock %}

{% block breadcrumbs_last %}
{% trans "Import" %}
{% endblock %}

{% block content %}

  {% if confirm_form %}
    
"{% url opts|admin_urlname:"process_import" %}" method="POST">
      {% csrf_token %}
      {{ confirm_form.as_p }}
      

        {% trans "Below is a preview of data to be imported. If you are satisfied with the results, click 'Confirm import'" %}
      
      
class="submit-row">
        "submit" class="default" name="confirm" value="{% trans "Confirm import" %}">
      
    

  {% else %}
    
"" method="post" enctype="multipart/form-data">
      {% csrf_token %}

      

        {% trans "This importer will import the following fields: " %}
        {% import_head_tag %} 

      

      
class="module aligned">
        {% for field in form %}
          
class="form-row">
            {{ field.errors }}

            {{ field.label_tag }}

            {{ field }}

            {% if field.field.help_text %}
            
class="help">{{ field.field.help_text|safe }}

            {% endif %}
          

        {% endfor %}
      

      
class="submit-row">"submit" class="default" value="{% trans "Submit" %}">
      
    

  {% endif %}

  {% if result %}

    {% if result.has_errors %}

      
{% trans "Errors" %}
      

        {% for error in result.base_errors  %}
        

          {{ error.error }}
          
class="traceback">{{ error.traceback|linebreaks }}
        

        {% endfor %}
        {% for line, errors in result.row_errors %}
          {% for error in errors %}
            

              {% trans "Line number" %}: {{ line }} - {{ error.error }}
              
{{ error.row.values|join:", " }}
              
class="traceback">{{ error.traceback|linebreaks }}
            

          {% endfor %}
        {% endfor %}
      


    {% elif result.has_validation_errors %}

      
{% trans "Some rows failed to validate" %}
        
      
{% trans "Please correct these errors in your data where possible, then reupload it using the form above." %}
      
      class="import-preview">
        
            {% for field in result.diff_headers %}
              
            {% endfor %}
          
        {% for row in result.invalid_rows %}
          
            {% for field in row.values %}
              
            {% endfor %}
          
        {% endfor %}
        

          

            
{% trans "Row" %}
            
{% trans "Errors" %}
{{ field }}
        
        

            
{{ row.number }} 
            
class="errors">
              class="validation-error-count">{{ row.error_count }} 
              
class="validation-error-container">
                
class="validation-error-list">
                  {% for field_name, error_list in row.field_specific_errors.items %}
                    

                        class="validation-error-field-label">{{ field_name }}
                        

                          {% for error in error_list %}
                            
{{ error }}

                          {% endfor %}
                        
                    

                  {% endfor %}
                  {% if row.non_field_specific_errors %}
                    

                      class="validation-error-field-label">{% trans "Non field specific" %}
                      

                        {% for error in row.non_field_specific_errors %}
                          
{{ error }}

                        {% endfor %}
                      
                    

                  {% endif %}
                
              
            
{{ field }}
      

  
    {% else %}

      
{% trans "Preview" %}

      class="import-preview">
        
            {% for field in result.diff_headers %}
              
            {% endfor %}
          
        {% for row in result.valid_rows %}
          
            {% for field in row.diff %}
              
            {% endfor %}
          
        {% endfor %}
      

          

            
{{ field }}
        

            
class="import-type">
              {% if row.import_type == 'new' %}
                {% trans "New" %}
              {% elif row.import_type == 'skip' %}
                {% trans "Skipped" %}
              {% elif row.import_type == 'delete' %}
                {% trans "Delete" %}
              {% elif row.import_type == 'update' %}
                {% trans "Update" %}
              {% endif %}
            
{{ field }}


    {% endif %}

  {% endif %}
{% endblock %}

修改后的效果