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Probably most of the time, doing things with the help of JWT for Jira Cloud is related to a single object - the issue currently being transitioned, e.g. by adding a comment, updating a field, etc.
Referring to the current issue's information can be done by using a simple field code like %{issue.description}.
However, since you can also use more complex functions in JWT that work with multiple objects, this simple notation is not sufficient for those use cases. To name a few examples
- Creating sub-tasks based on the (dynamic) selection of components set in the current issue
- Create a task for each issue returned by a JQL query (dynamic)
- Create a set of three (static) stories in an Epic with distinct pieces of information
Whenever JWT for Jira Cloud has to handle (or iterates over) multiple elements of Lists (or sources), those elements are referred to as seeds. Depending on the type of list, those are referred to as
- Seed issues - for elements of issue lists
- Seed texts - for elements of text lists (e.g. custom field options, components etc.)
- Seed numbers - for the numbers from one to a given number
Seed issues
Issue lists can be specified by issue list expressions like linkedIssues().
%{seed.issue.someField}, e.g. %{seed.issue.summary}
Workflow functions
You might face seed issues when trying to create multiple issues with the Create issue post function by setting the "Mode" parameter:
| Number of issues to be created | Description |
|---|---|
| Multiple issues based on an issue list | An issue is created for every issue returned by the issue list expression. |
Example: You want to create multiple issue based on a parser function that returns three issues, e.g. linkedIssues():
- DEMO-1 Issue A
- DEMO-2 Issue B
- DEMO-3 Issue C
Creating issues based on this result, the post function will run three times, where the following values will be returned throughout those three runs.
| Run | %{seed.issue.key} | %{seed.issue.summary} |
|---|---|---|
| 1 | DEMO-1 | Issue A |
| 2 | DEMO-2 | Issue B |
| 3 | DEMO-3 | Issue C |
In general, using the seed notation, the nth run returns the field values of the nth issue from this list.
Seed texts
Text lists can either be
- static, e.g.
["firstElement", "secondElement", "thirdElement"], or - composed dynamically by using the toStringList() expression parser functions, e.g.
toStringList(%{issue.components})ortoStringList(%{issue.cf12345}})(where the custom field with the ID 123456 is a multi option custom field) or - calculated by using one of the functions that return a text list like findPattern(), e.g. %{findPattern(%{issue.versions}, "Release")}
%{seed.text}.
Workflow functions
Create issue post function
| Number of issues to be created | Description |
|---|---|
| Multiple issues based on a text list | An issue is created for each element of a text list. |
Given the example of a static list above, the post function will run three times and the following values will be returned throughout those three runs
| Run | %{seed.text} |
|---|---|
| 1 | firstElement |
| 2 | secondElement |
| 3 | thirdElement |
Given a dynamic example, having selected the components Frontend and Backend on an issue with %{toStringList(%{issue.components})}, the post function will run two times returning the following values for each run
| Run | %{seed.text} |
|---|---|
| 1 | Frontend |
| 2 | Backend |
After adding a third component Interface, the post function will run three times returning the following values for each run
| Run | %{seed.text} |
|---|---|
| 1 | Frontend |
| 2 | Backend |
| 3 | Interface |
According to this scenario, composing a summary with an expression like
Summary of %{seed.text} Issue
will result in three issues, named
- Summary of Frontend Issue
- Summary of Backend Issue
- Summary of Interface Issue
Examples
Seed numbers
Numbers can either be
- static, e.g.
3, or - composed dynamically by using the toNumber() expression parser function or
- calculated by using one of the functions that return a number like length(), e.g.
%{length(%{issue.versions})}
{seed.number}.
Workflow functions
- Create issue post function
| Number of issues to be created | Description |
|---|---|
| Multiple issues based on a number | The number of issues provided by the numeric value is created. |
Given a static example with the numeric value of 3 in order to create three issues, the following values will be returned for each run
| Run | {seed.number} |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
According to this scenario, composing a summary with an expression like
Summary of Issue # {seed.number}
will result in three issues, named
- Summary of Issue # 1
- Summary of Issue # 2
- Summary of Issue # 3
If you still have questions, feel free to refer to our support team.
