yogthos/Selmer

Iterating over double nested structures

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#121 建立於 2016年4月19日

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 (3 留言) (0 反應) (0 負責人)Clojure (670 star) (86 fork)batch import
bughelp wanted

描述

Hi

I have the following structure, passed to Selmer as variable 'res':

[ { :a "A1"
    :b "B1"
     :c [{ :aa "AA1"
            :bb "BB1"
            :cc "CC1"}
          { :aa "AA2"
            :bb "BB2"
            :cc "CC2"}
          { :aa "AA3"
            :bb "BB3"
             :cc "CC3"}]}
    {:a "A2"
     :b "B2"
      :c [{ :aa "AA11"
             :bb "BB11"
             :cc "CC11"}
           { :aa "AA21"
             :bb "BB21"
             :cc "CC21"}
          { :aa "AA31"
            :bb "BB31"
             :cc "CC31"}]}]

I want to iterate over the items in the first vector and print them out, and when getting to the ':c' fields I want to then start an inner iteration to print out the contents.

At the moment it is possible to get to every element in the structure with dotted notation. However, when I introduce an iterator using {% for n in res %} I then can not repeat this for the inner vector. Is this a lacking feature or am I not seeing the bigger picture? Thanks

貢獻者指南

技術棧
無
領域
backend
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
3-5 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
Clojure basicsSelmer template syntaxUnderstanding of for loop contextRecursion patterns
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
30
研究方向
Investigate the current implementation of the {% for %} tag in Selmer, likely in the template parsing files such as src/selmer/parser.clj. Look at how the for loop context is created and how nested loops are handled. Check if there is any recursion support or if the context is flattened. Consider adding support for nested loops by properly managing the loop variables and scopes. Review any existing tests for for loops to understand expected behavior.