Mermaid Diagram

DOES NOT WORK ANYMORE

https://github.com/wekan/wekan/issues/4841

As of newest Mermaid 10.0.0, Mermaid does not work in WeKan anymore, so Mermaid was removed in WeKan v6.76. xet7 did maintain https://www.npmjs.com/package/@wekanteam/markdown-it-mermaid but after updating to Mermaid 10.0.0 using Mermaid on WeKan card description etc did not work anymore.

Source

• Original issue, please comment there if Mermaid is useful.
• Original commit

Npm package

• NPM package at https://www.npmjs.com/package/@liradb2000/markdown-it-mermaid

About examples

• Below examples and more at https://mermaid-js.github.io/mermaid/#/examples
• https://jessems.com/posts/2023-07-22-the-unreasonable-effectiveness-of-sequence-diagrams-in-mermaidjs
• https://news.ycombinator.com/item?id=36845714

Howto

• Add mermaid code to Wekan card or any other input field. After some time, if chart is not visible, reload browser webpage.
• Mermaid code starts with ~~~mermaid
• Mermaid code ends with ~~~

Example 1: Flowchart

~~~mermaid
    graph TD
    A[Client] --> B[Load Balancer]
    B --> C[Server01]
    B --> D[Server02]
~~~

Example 2: Pie Chart

~~~mermaid
pie title NETFLIX
         "Time spent looking for movie" : 90
         "Time spent watching it" : 10
~~~

Example 3: Gantt Chart

~~~mermaid
gantt
    dateFormat  YYYY-MM-DD
    title       Adding GANTT diagram functionality to mermaid
    excludes    weekends
    %% (`excludes` accepts specific dates in YYYY-MM-DD format, days of the week ("sunday") or "weekends", but not the word "weekdays".)

    section A section
    Completed task            :done,    des1, 2014-01-06,2014-01-08
    Active task               :active,  des2, 2014-01-09, 3d
    Future task               :         des3, after des2, 5d
    Future task2              :         des4, after des3, 5d

    section Critical tasks
    Completed task in the critical line :crit, done, 2014-01-06,24h
    Implement parser and jison          :crit, done, after des1, 2d
    Create tests for parser             :crit, active, 3d
    Future task in critical line        :crit, 5d
    Create tests for renderer           :2d
    Add to mermaid                      :1d

    section Documentation
    Describe gantt syntax               :active, a1, after des1, 3d
    Add gantt diagram to demo page      :after a1  , 20h
    Add another diagram to demo page    :doc1, after a1  , 48h

    section Last section
    Describe gantt syntax               :after doc1, 3d
    Add gantt diagram to demo page      :20h
    Add another diagram to demo page    :48h
~~~