是否有将 Wagtail RichTextBlock 内容存储到 UTF-8 数据库的开关？

Question

我是 Django 和 Wagtail 的新手。我使用 Django 4.0 和 Wagtail 2.16.1 开发了一个网站应用程序。我发现 Django models.CharField 默认以 UTF-8 格式将内容存储到数据库，而 Wagtail RichTextBlock 默认以 Unicode 格式将内容存储到数据库，这在搜索 East-Asian 个字符时会导致问题。

models.py

class BlogDetailPage(Page):
    custom_title = models.CharField('Title', max_length=60, help_text='文章标题')
    author = models.ForeignKey(User, on_delete=models.PROTECT)
    create_date = models.DateField("Create date", auto_now_add= True)
    update_date = models.DateField("Update date", auto_now=True)
    intro = models.CharField('Introduction', max_length=500, help_text='文章简介')
    tags = ClusterTaggableManager(through=BlogPageTag, blank=True)

    content = StreamField(
        [
            ('heading', blocks.CharBlock(form_classname="full title")),
            ('paragraph', blocks.RichTextBlock()),
            ('image', ImageChooserBlock()),
            ('blockquote', blocks.BlockQuoteBlock(label='Block Quote')),
            ('documentchooser', DocumentChooserBlock(label='Document Chooser')),
            ('url', blocks.URLBlock(label='URL')),
            ('embed', EmbedBlock(label='Embed')),
            #('snippetchooser', SnippetChooserBlock(label='Snippet Chooser')),
            ('rawhtml', blocks.RawHTMLBlock(label='Raw HTML')),
            ('table', TableBlock(label='Table')),
            ('markdown', MarkdownBlock(label='Markdown')),
            ('code', CodeBlock(label='Code')),
            ('imagedeck', CardBlock(label='Imagedeck')), 
            
        ],
        null=True,
        blank=True,
    )

search.py

def search(request):
    search_query = request.GET.get('query', None).strip()
    page_num = request.GET.get('page', 1)

    condition = None
    for word in search_query.split(' '):
        if condition is None:
            condition = Q(custom_title__icontains=word) | Q(intro__icontains=word) | Q(content__icontains=word.encode('utf-8'))
        else:
            condition = condition | Q(custom_title__icontains=word) | Q(intro__icontains=word) | Q(content__icontains=word.encode('utf-8'))

    search_results = []
    if condition is not None:
        search_results = BlogDetailPage.objects.live().filter(condition)

问题是我在介绍栏可以搜索英文和中文，但在内容栏只能搜索英文。检查数据库时（默认为 PostgreSQL UTF-8），我发现 Intro 字段是 UTF-8，而 content 字段是 Unicode。想知道是否有将 RichTextField 存储设置为 UTF-8 的设置？

Answer 1

发现几年前有人提出过同样的问题。 Wagtail default search not working with not english fields。复制 2 个字段仅用于搜索索引的变通方法显然不是一个优雅的解决方案。我使用了第二个答案的想法，即继承 StreamField 并覆盖 get_prep_value.

models.py

class CustomStreamField(StreamField):
    def get_prep_value(self, value):
        if isinstance(value, blocks.StreamValue) and not(value) and value.raw_text is not None:
            # An empty StreamValue with a nonempty raw_text attribute should have that
            # raw_text attribute written back to the db. (This is probably only useful
            # for reverse migrations that convert StreamField data back into plain text
            # fields.)
            return value.raw_text
        else:
            return json.dumps(self.stream_block.get_prep_value(value), ensure_ascii=False, cls=DjangoJSONEncoder)

class BlogDetailPage(Page):
    template = "blog/blog_detail_page.html"    

    custom_title = models.CharField('Title', max_length=60, help_text='文章标题')
    author = models.ForeignKey(User,on_delete=models.PROTECT)
    create_date = models.DateField("Create date", auto_now_add= True)
    update_date = models.DateField("Update date", auto_now=True)
    intro = models.CharField('Introduction', max_length=500, help_text='文章简介')
    tags = ClusterTaggableManager(through=BlogPageTag, blank=True)
    
    #categories = ParentalManyToManyField('blog.BlogCategory', blank=True)

    content = CustomStreamField(
        [
            ('heading', blocks.CharBlock(form_classname="full title")),
            ('paragraph', blocks.RichTextBlock()),
            ('image', ImageChooserBlock()),
            ('blockquote', blocks.BlockQuoteBlock(label='Block Quote')),
            ('documentchooser', DocumentChooserBlock(label='Document Chooser')),
            ('url', blocks.URLBlock(label='URL')),
            ('embed', EmbedBlock(label='Embed')),
            #('snippetchooser', SnippetChooserBlock(label='Snippet Chooser')),
            ('rawhtml', blocks.RawHTMLBlock(label='Raw HTML')),
            ('table', TableBlock(label='Table')),
            ('markdown', MarkdownBlock(label='Markdown')),
            ('code', CodeBlock(label='Code')),
            ('imagedeck', CardBlock(label='Imagedeck')),

创建的新博客将以 UTF-8 格式存储在数据库中。至于已有的博客，再发一次吧，内容由Unicode改为UTF-8

是否有将 Wagtail RichTextBlock 内容存储到 UTF-8 数据库的开关？

Is there a switch to store the Wagtail RichTextBlock content to database in UTF-8?

python

django

wagtail

wagtail-streamfield