Python django-treenode包_程序模块 - PyPI

django treenode可能是基于树的东西的最佳抽象模型/管理。

django-treenode的Python项目详细描述

django treenode

可能是基于树的东西最好的抽象模型/管理。

功能

快速-获取祖先，子代，子代，父代，根，兄弟代，树无查询
同步-内存中的模型实例将自动更新
兼容性-您可以轻松地将treenode添加到现有项目中
没有依赖关系
易于配置-只需扩展抽象模型/模型管理
管理集成-伟大的树可视化：手风琴，面包屑或缩进

<表><广告>缩进（默认）面包屑手风琴 < /广告><正文> treenode admin display mode indentation

要求

python 2.7、3.4、3.5、3.6、3.7
Django 1.8、1.9、1.10、1.11、2.0、2.1、2.2

安装

运行pip install django treenode
将treenode添加到设置。已安装的应用程序
使您的模型继承自treenode.models.treenode model（如下所述）
使您的模型管理继承自treenode.admin.treenodemodelmadmin（如下所述）
运行python manage.py makemigrations和python manage.py migrate

配置

`型号.py`

使模型类继承自treenode.models.treenode model：

fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'

treenodemodel抽象类向模型中添加了许多字段（前缀为tn以防止直接访问）和公共方法。

`管理py`

使您的模型管理类继承自treenode.admin.treenodemodelmadmin

fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)

用法

方法/属性

删除节点及其所有子节点：

obj.delete()

删除当前节点类的整棵树

cls.delete_tree()

获取包含所有祖先的列表（从根到父）：

obj.get_ancestors()# orobj.ancestors

获取祖先计数

obj.get_ancestors_count()# orobj.ancestors_count

获取祖先查询集

obj.get_ancestors_queryset()

获取面包屑到当前节点（包括）：

obj.get_breadcrumbs(attr=None)# orobj.breadcrumbs

获取包含所有子项的列表

obj.get_children()# orobj.children

获取子项计数：

fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'

0
获取子查询集：
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
1
获取节点深度（子代的级别）：
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
2
获取包含所有子代的列表
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
3
获取子代计数
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
4
获取子查询集
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
5
获取表示模型树的n维dict
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
6
获取表示模型树的多行字符串
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
7
获取第一个子节点
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
8
获取节点索引（node.parent.children列表中的索引）：
fromdjango.dbimportmodelsfromtreenode.modelsimportTreeNodeModelclassCategory(TreeNodeModel):# the field used to display the model instance# default value 'pk'treenode_display_field='name'name=models.CharField(max_length=50)classMeta(TreeNodeModel.Meta):verbose_name='Category'verbose_name_plural='Categories'
9
获取最后一个子节点
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
0
获取节点级别（从1开始）：
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
1
获取用于订购的订单值：
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
2
获取父节点
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
3
设置父节点
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
4
获取节点优先级
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
5
设置节点优先级
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
6
获取当前节点的根节点
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
7
获取包含所有根节点的列表
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
8
获取根节点查询集
fromdjango.contribimportadminfromtreenode.adminimportTreeNodeModelAdminfromtreenode.formsimportTreeNodeFormfrom.modelsimportCategoryclassCategoryAdmin(TreeNodeModelAdmin):# set the changelist display mode: 'accordion', 'breadcrumbs' or 'indentation' (default)# when changelist results are filtered by a querystring,# 'breadcrumbs' mode will be used (to preserve data display integrity)treenode_display_mode=TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_ACCORDION# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_BREADCRUMBS# treenode_display_mode = TreeNodeModelAdmin.TREENODE_DISPLAY_MODE_INDENTATION# use TreeNodeForm to automatically exclude invalid parent choicesform=TreeNodeFormadmin.site.register(Category,CategoryAdmin)
9
与所有兄弟姐妹一起获取列表
obj.delete()
0
获取兄弟姐妹计数
obj.delete()
1
获取同级查询集
obj.delete()
2
获取表示模型树的n维dict 小精灵AA33
获取表示模型树的多行字符串啊！
如果当前节点是目标对象的祖先，则返回true 啊！
如果当前节点是目标对象的子节点，则返回true 啊！
如果当前节点是目标对象的后代，则返回true AAAAAAA 37
如果当前节点是第一个子节点，则返回true AAAAAAAAA 38
如果当前节点是最后一个子节点，则返回true 啊！
如果当前节点是叶节点（没有子节点），则返回true 啊！
如果当前节点是目标对象的父节点，则返回true AAAAAAA 41
如果当前节点是根节点，则返回true AAAAAAA 42
如果当前节点是目标对象的根节点，则返回true 啊！
如果当前节点是目标对象的同级节点，则返回true 啊！
手动更新树，在批量更新后有用：
啊！45！许可证在麻省理工学院许可证下发布标签： django from 模型 import mode models display treenode category 欢迎加入QQ群-->： 979659372 推荐PyPI第三方库 gen_rst_readme 从MD自述生成第一个自述文件。 asyncba 阿辛卡 excel2json-3 将Excel工作表转换为JSON文件。 twodolib 从命令行管理2doapp的函数。 satzreduktion 使用ner工具进行集合约简 gpssim python gps仿真库 ehour python样板包含创建python包所需的所有样板。 pyhdfview HDF5文件查看器 elasticsearch2 用于ElasticSearch的Python客户端 sentry-pivotal 与关键跟踪器集成的岗哨分机。 Tavi 用于python的超薄mongo对象映射器。 aws-cdk.aws-medialive aws：：medialive的cdk构造库 DustyShock 两次液体粉尘气体冲击。 setuptools-changelog 帮助生成更改日志的setuptools扩展 odoo8-addon-hr-famil 员工家庭信息页签

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django-treenode 0.13.4

django-treenode的Python项目详细描述

django treenode

功能

要求

安装

配置

型号.py

管理py

用法

方法/属性

许可证

推荐PyPI第三方库

gen_rst_readme

asyncba

excel2json-3

twodolib

satzreduktion

gpssim

ehour

pyhdfview

elasticsearch2

sentry-pivotal

Tavi

aws-cdk.aws-medialive

DustyShock

setuptools-changelog

odoo8-addon-hr-famil

导 航 栏

项目 链接

标 签

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最新Python常见问题

`型号.py`

`管理py`

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