小编Rap*_*ael的帖子

我需要创建自己的中间模型.

class class1(models.Model)

class class2(models.Model):
    field1 = models.ManyToManyField(class1, through="class3")

class class3(models.Model):
    field1 = models.ForeignKey(class1)
    field2 = models.ForeignKey(class2)
    field3 = models.IntegerField()

    class Meta:
        auto_created = True

我使用"auto_created = True",因为在下面的代码中,我有错误:

AttributeError:不能在指定中间模型的ManyToManyField上使用add().

for m2m_field in self._meta.many_to_many:
    for m2m_link in getattr(self, m2m_field.get_attname()).all():
        getattr(to_object, m2m_field.get_attname()).add(m2m_link)

现在它工作正常,但是当我尝试进行makemigration时,django想要删除我的class3(中间类),并删除class2中field1中的"through"属性.

我究竟做错了什么 ？有解决方案吗

Tks all.

我使用Robot Framework.

在我的HTML页面上,我有一个简单的按钮.单击它时,它会下载pdf文件.

如果文件已下载,我如何查看Robot Framework？

TKS

我找到了一个解决方案,请转到@ ombre42:

${SERVER}                  ${SERVER_DEV}
${NAME}                 Robot
${FILE_NAME}                Robot.pdf
${CLASS_NAME}               in
${DOWNLOAD_DIRECTORY}       C:\\robot_download

Scenario: User can download
    Create Directory    ${DOWNLOAD_DIRECTORY}
    ${CHROME_OPTIONS}=  Evaluate    sys.modules['selenium.webdriver'].ChromeOptions()   sys, selenium.webdriver
    ${disabled} Create List     Chrome PDF Viewer
    ${prefs}    Create Dictionary   download.default_directory=${DOWNLOAD_DIRECTORY}    plugins.plugins_disabled=${disabled}
    Call Method ${CHROME_OPTIONS}   add_experimental_option prefs   ${prefs}
    Create Webdriver    Chrome  chrome_options=${CHROME_OPTIONS}
    Goto    ${SERVER}
    Click Element ${NAME}
    Wait Until Element Is Visible   css=div.${CLASS_NAME}   8
    Page Should Contain ${NAME}
    Set Selenium Speed  10s
    Download PDF    ${NAME}
    File Should Exist   C:\\robot_download\\${FILE_NAME}