我對 jinja2 模板很陌生，我嘗試使用 jinja 模板獲取輸出資料。
資料串列=
[
{
"v4-filter": {
"accept_1": [
{
"destination-prefix-list": "v4-future-prefix-list-1"
},
{
"source-prefix-list": "v4-future-prefix-list-2"
},
{
"source-prefix-list": "v4-future-prefix-list-3"
},
{
"destination-port": "80"
},
{
"destination-port": "443"
},
{
"action": "accept"
}
],
"accept_2": [
{
"destination-prefix-list": "v4-future-prefix-list4"
},
{
"source-prefix-list": "v4-future-prefix-list5"
},
{
"action": "accept"}]}}]
我的神社模板
{%- for d in data_list -%}
{%- for k,v in d.items() -%}
{%- for term,value in v.items() -%}
term:: {{ term }}
{%- for dict_item in value -%}
{%- for key, value in dict_item.items() -%}
{% if key == "source-prefix-list" %}
source-address:: {{value}}
{% endif %}
{% if key == "destination-prefix-list" %}
destination-address:: {{value}}
{% endif %}
{% if key == "destination-port" %}
destination-port:: {{value}}
{% endif %}
{% if key == "action" %}
action:: {{value}}
{% endif %}
{%- endfor -%}
{%- endfor -%}
{%- endfor -%}
{%- endfor -%}
{%- endfor -%}
我得到的輸出
term:: accept_1
destination-address:: v4-future-prefix-list-1
source-address:: v4-future-prefix-list-2
source-address:: v4-future-prefix-list-3
destination-port:: 80
destination-port:: 443
action:: accept
term:: accept_2
destination-address:: v4-future-prefix-list4
source-address:: v4-future-prefix-list5
action:: accept
我想要的輸出
term accept_1 {
source-address:: v4-future-prefix-list-1
v4-future-prefix-list-2
v4-future-prefix-list-3
destination-port:: 80
443
action:: accept
}
term accept_2 {
source-address:: v4-future-prefix-list-5
destination-address:: v4-future-prefix-list-4
action:: accept
}
我知道 jinja 模板看起來不太好，但最后它包含我需要的所有資訊，現在只是按預期正確格式化的問題。
我嘗試使用嵌套的 if 陳述句來正確地達到結果，但沒有成功。
歡迎任何提示。謝謝，巴勃羅。
uj5u.com熱心網友回復：
以下模板將生成請求的輸出：
{%- for d in data_list -%}
{%- for k,v in d.items() -%}
{%- for term,value in v.items() -%}
{%- set label = namespace(source=false, dest=false, port=false) %}
term {{ term }} {
{%- for dict_item in value -%}
{%- for key, value in dict_item.items() -%}
{%- if key == "source-prefix-list" %}
{% if not label.source %}source-address::{% else %}{{ ' '*16 }}{% endif %} {{value}}
{%- set label.source = true %}
{%- endif %}
{%- if key == "destination-prefix-list" %}
{% if not label.dest %}destination-address::{% else %}{{ ' '*21 }}{% endif %} {{value}}
{%- set label.dest = true %}
{%- endif %}
{%- if key == "destination-port" %}
{% if not label.port %}destination-port::{% else %}{{ ' '*18 }}{% endif %} {{value}}
{%- set label.port = true %}
{%- endif %}
{%- if key == "action" %}
action:: {{value}}
{%- endif %}
{%- endfor %}
{%- endfor %}
}
{% endfor %}
{%- endfor %}
{%- endfor %}
輸出：
term accept_1 {
destination-address:: v4-future-prefix-list-1
source-address:: v4-future-prefix-list-2
v4-future-prefix-list-3
destination-port:: 80
443
action:: accept
}
term accept_2 {
destination-address:: v4-future-prefix-list4
source-address:: v4-future-prefix-list5
action:: accept
}
這里我們使用了一個Jinja2 命名空間物件，我們可以使用它來跟蹤標簽在當前回圈中是否已經被列印。如果列印了標簽，我們會翻轉label命名空間變數中的布爾跟蹤變數，然后列印足夠的空間來正確對齊下一個列印值。
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