• window系统下为django自动绘制模型类关系图

    Django 提供第三方包 django-extensions，可以用来将 Django 中的 Models 生成 E-R 图。

    1 安装包

    pip install django-extensions

    2 配置

    在 Django settings.py 文件， INSTALLED_APPS 中添加 django_extensions

    1. INSTALLED_APPS = (
    2.     'django_extensions',
    3. )

    3 生成 dot 文件和 png 图片

    • 生成全部 model 的 E-R 图
    python manage.py graph_models -a > all.dot
    • 单独某个 Django App （以 django_view_permission 为例） 生成 dot 文件
    python manage.py graph_models django_view_permission > django_view_permission.dot

    导出的 dot 内容如下：django_view_permission.dot

    1. digraph model_graph {
    2.   // Dotfile by Django-Extensions graph_models
    3.   // Created: 2018-03-03 14:55
    4.   // Cli Options: django_view_permission
    5.  
    6.   fontname = "Helvetica"
    7.   fontsize = 8
    8.   splines  = true
    9.  
    10.   node [
    11.     fontname = "Helvetica"
    12.     fontsize = 8
    13.     shape = "plaintext"
    14.   ]
    15.  
    16.   edge [
    17.     fontname = "Helvetica"
    18.     fontsize = 8
    19.   ]
    20.  
    21.   // Labels
    22.  
    23.   django_view_permission_models_CommonElement [label=<
    24.     "palegoldenrod" BORDER="0" CELLBORDER="0" CELLSPACING="0">
    25.     
    26.   
    27.     
    28.   
    29.     
    30.   
    31.     
    32.   
    33.     
      34. "2" CELLPADDING="4" ALIGN="CENTER" BGCOLOR="olivedrab4">
    34.     "Helvetica Bold" COLOR="white">
    35.     CommonElement
    36.     
      37. "LEFT" BORDER="0">
    37.     "#7B7B7B" FACE="Helvetica ">create_time
    38.     
      		39. "LEFT">
    39.     "#7B7B7B" FACE="Helvetica ">DateTimeField
    40.     
      41. "LEFT" BORDER="0">
    41.     "#7B7B7B" FACE="Helvetica ">doc
    42.     
      		43. "LEFT">
    43.     "#7B7B7B" FACE="Helvetica ">TextField
    44.     
      45. "LEFT" BORDER="0">
    45.     "#7B7B7B" FACE="Helvetica ">update_time
    46.     
      		47. "LEFT">
    47.     "#7B7B7B" FACE="Helvetica ">DateTimeField
    48.     
    49.     >]
    50.  
    51.   django_view_permission_models_View [label=<
    52.     "palegoldenrod" BORDER="0" CELLBORDER="0" CELLSPACING="0">
    53.     
    54.   
    55.     
    56.   
    57.     
    58.   
    59.     
    60.   
    61.     
    62.   
    63.     
    64.   
    65.     
    66.   
    67.     
    68.   
    69.     
      70. "2" CELLPADDING="4" ALIGN="CENTER" BGCOLOR="olivedrab4">
    70.     "Helvetica Bold" COLOR="white">
    71.     View
      <"Helvetica Italic">CommonElement>
    72.     
      73. "LEFT" BORDER="0">
    73.     "Helvetica Bold">id
    74.     
      		75. "LEFT">
    75.     "Helvetica Bold">AutoField
    76.     
      77. "LEFT" BORDER="0">
    77.     "#7B7B7B" FACE="Helvetica Italic">create_time
    78.     
      		79. "LEFT">
    79.     "#7B7B7B" FACE="Helvetica Italic">DateTimeField
    80.     
      81. "LEFT" BORDER="0">
    81.     "#7B7B7B" FACE="Helvetica Italic">doc
    82.     
      		83. "LEFT">
    83.     "#7B7B7B" FACE="Helvetica Italic">TextField
    84.     
      85. "LEFT" BORDER="0">
    85.     "#7B7B7B" FACE="Helvetica ">func
    86.     
      		87. "LEFT">
    87.     "#7B7B7B" FACE="Helvetica ">CharField
    88.     
      89. "LEFT" BORDER="0">
    89.     "#7B7B7B" FACE="Helvetica ">module
    90.     
      		91. "LEFT">
    91.     "#7B7B7B" FACE="Helvetica ">CharField
    92.     
      93. "LEFT" BORDER="0">
    93.     "#7B7B7B" FACE="Helvetica ">name
    94.     
      		95. "LEFT">
    95.     "#7B7B7B" FACE="Helvetica ">CharField
    96.     
      97. "LEFT" BORDER="0">
    97.     "#7B7B7B" FACE="Helvetica Italic">update_time
    98.     
      		99. "LEFT">
    99.     "#7B7B7B" FACE="Helvetica Italic">DateTimeField
    100.     
    101.     >]
    102.  
    103.   django_view_permission_models_ViewSet [label=<
    104.     "palegoldenrod" BORDER="0" CELLBORDER="0" CELLSPACING="0">
    105.     
    106.   
    107.     
    108.   
    109.     
    110.   
    111.     
    112.   
    113.     
    114.   
    115.     
    116.   
    117.     
      118. "2" CELLPADDING="4" ALIGN="CENTER" BGCOLOR="olivedrab4">
    118.     "Helvetica Bold" COLOR="white">
    119.     ViewSet
      <"Helvetica Italic">CommonElement>
    120.     
      121. "LEFT" BORDER="0">
    121.     "Helvetica Bold">id
    122.     
      		123. "LEFT">
    123.     "Helvetica Bold">AutoField
    124.     
      125. "LEFT" BORDER="0">
    125.     "#7B7B7B" FACE="Helvetica Italic">create_time
    126.     
      		127. "LEFT">
    127.     "#7B7B7B" FACE="Helvetica Italic">DateTimeField
    128.     
      129. "LEFT" BORDER="0">
    129.     "#7B7B7B" FACE="Helvetica Italic">doc
    130.     
      		131. "LEFT">
    131.     "#7B7B7B" FACE="Helvetica Italic">TextField
    132.     
      133. "LEFT" BORDER="0">
    133.     "Helvetica ">name
    134.     
      		135. "LEFT">
    135.     "Helvetica ">CharField
    136.     
      137. "LEFT" BORDER="0">
    137.     "#7B7B7B" FACE="Helvetica Italic">update_time
    138.     
      		139. "LEFT">
    139.     "#7B7B7B" FACE="Helvetica Italic">DateTimeField
    140.     
    141.     >]
    142.  
    143.   django_view_permission_models_ViewPermission [label=<
    144.     "palegoldenrod" BORDER="0" CELLBORDER="0" CELLSPACING="0">
    145.     
    146.   
    147.     
    148.   
    149.     
    150.   
    151.     
    152.   
    153.     
    154.   
    155.     
      156. "2" CELLPADDING="4" ALIGN="CENTER" BGCOLOR="olivedrab4">
    156.     "Helvetica Bold" COLOR="white">
    157.     ViewPermission
      <"Helvetica Italic">CommonElement>
    158.     
      159. "LEFT" BORDER="0">
    159.     "Helvetica Bold">id
    160.     
      		161. "LEFT">
    161.     "Helvetica Bold">AutoField
    162.     
      163. "LEFT" BORDER="0">
    163.     "#7B7B7B" FACE="Helvetica Italic">create_time
    164.     
      		165. "LEFT">
    165.     "#7B7B7B" FACE="Helvetica Italic">DateTimeField
    166.     
      167. "LEFT" BORDER="0">
    167.     "#7B7B7B" FACE="Helvetica Italic">doc
    168.     
      		169. "LEFT">
    169.     "#7B7B7B" FACE="Helvetica Italic">TextField
    170.     
      171. "LEFT" BORDER="0">
    171.     "#7B7B7B" FACE="Helvetica Italic">update_time
    172.     
      		173. "LEFT">
    173.     "#7B7B7B" FACE="Helvetica Italic">DateTimeField
    174.     
    175.     >]
    176.   // Relations
    177.  
    178.   django_view_permission_models_View -> django_view_permission_models_CommonElement
    179.   [label="abstract\ninheritance"] [arrowhead=empty, arrowtail=none, dir=both];
    180.  
    181.   django_view_permission_models_ViewSet -> django_view_permission_models_View
    182.   [label="views (viewset)"] [arrowhead=dot arrowtail=dot, dir=both];
    183.  
    184.   django_view_permission_models_ViewSet -> django_view_permission_models_CommonElement
    185.   [label="abstract\ninheritance"] [arrowhead=empty, arrowtail=none, dir=both];
    186.   account_models_BkUser [label=<
    187.   "palegoldenrod" BORDER="0" CELLBORDER="0" CELLSPACING="0">
    188.   
    189.   
      190. "2" CELLPADDING="4" ALIGN="CENTER" BGCOLOR="olivedrab4">
    190.   "Helvetica Bold" COLOR="white">BkUser
    191.   
    192.   >]
    193.   django_view_permission_models_ViewPermission -> account_models_BkUser
    194.   [label="users (viewpermission)"] [arrowhead=dot arrowtail=dot, dir=both];
    195.  
    196.   django_view_permission_models_ViewPermission -> django_view_permission_models_View
    197.   [label="views (viewpermission)"] [arrowhead=dot arrowtail=dot, dir=both];
    198.  
    199.   django_view_permission_models_ViewPermission -> django_view_permission_models_ViewSet
    200.   [label="views_set (viewpermission)"] [arrowhead=dot arrowtail=dot, dir=both];
    201.  
    202.   django_view_permission_models_ViewPermission -> django_view_permission_models_CommonElement
    203.   [label="abstract\ninheritance"] [arrowhead=empty, arrowtail=none, dir=both];
    204. }

    生成后的文件我没有找到在哪里，就自己建了同名的文件，输入了控制台输出的内容

    如果有知道的，欢迎评论区告诉我，或者私信我，不胜感谢

    • 生成图片

    由于生成的是 dot 格式的图片描述文件，需要使用工具进行转换成常用的 PNG 格式图片。可以下载 graphviz ，并将 /bin/dot.exe 加入系统 PATH 中（安装的时候有添加环境变量提示，勾选即可）。

    dot -Tpng django_view_permission.dot > django_view_permission.png

     字体默认是 Roboto，可以换成其他的字体

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  • 原文地址：https://blog.csdn.net/weixin_72949205/article/details/139664523