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Description
| Excerpt | ||
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| Checks if the provided variable is null or has no value associated then returns "true", otherwise returns "false". |
</ac:rich-text-body>
</ac:structured-macro>
<p>Checks Checks if the provided variable is null or has no value associated then returns "true", otherwise returns "false".</p></p>
<h2>Parameters</h2>
<ac:structured-macro ac:name="table-plus" ac:schema-version="1">
<ac:parameter ac:name="applyColStyleToCell">true</ac:parameter>
<ac:parameter ac:name="columnTypes">s
Parameters
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...
<h2>Examples</h2>
<h3>Example 1</h3>
<p>Checks whether the assignee was selected for a ticket.</p>
<ac:structured-macro ac:name="code" ac:schema-version="1">
<ac:plain-text-body>
<![CDATA[if(isNull(assignee)) {
assignee = reporter;
}]]>
</ac:plain-text-body>
</ac:structured-macro>
<h3>Example 2</h3>
<p>The following line checks whether the <strong>Time Spent</strong> field contains any work logged on the ticket.</p>
<ac:structured-macro ac:name="code" ac:schema-version="1">
<ac:plain-text-body>
<![CDATA[if(isNull(assignee)) {
assignee = reporter;
}]]>
</ac:plain-text-body>
</ac:structured-macro>
<p>You can also use the <ac:link><ri:page ri:content-title="hasInput"/></ac:link> routine to check whether certain fields were filled out during a workflow transition. And among those fields you can also check the work logged in particular.</p>
<h2>Note</h2>
<p><ac:structured-macro ac:name="note" ac:schema-version="1">
<ac:rich-text-body>
<p>If <strong>isNull</strong> returns "true" the variable has no value attached. <strong>isNull</strong> returns "false" for <strong>zero</strong> for numeric variables or <strong>blank</strong> for character/string.</p>
</ac:rich-text-body>
</ac:structured-macro></p>
<h2>See also</h2>
<p><ac:structured-macro ac:name="contentbylabel" ac:schema-version="4">
<ac:parameter ac:name="showLabels">false</ac:parameter>
<ac:parameter ac:name="max">25</ac:parameter>
<ac:parameter ac:name="showSpace">false</ac:parameter>
<ac:parameter ac:name="cql">label = "basic_routines" and space = currentSpace ( )</ac:parameter>
<ac:parameter ac:name="labels">array_routines</ac:parameter>
</ac:structured-macro></p>
| Info | ||
|---|---|---|
| ||
This routine is available starting with SIL Engine™ 1.0. |
Syntax
isNull(variable)
Description
| Excerpt |
|---|
Checks if the provided variable is null or has no value associated then returns "true", otherwise returns "false". |
Parameters
...
Parameter name
...
Required
...
Description
...
variable
| ||||||||
|
Return
...
Type
boolean Boolean (true/false)
Examples
Example 1
...
Checks whether the assignee was selected for a
...
ticket.
| Code Block |
|---|
if(isNull(assignee)) {
assignee = reporter;
}
|
Example 2
...
The following line checks whether the Time Spent field contains any work logged on the ticket.
| Code Block |
|---|
if(isNull(timeSpent)assignee)) { assignee = reporter; } |
You can also use the hasInput routine function to check whether certain fields were filled out during a workflow transition. And among those fields you can also check the work logged in particular.
Notes
| Note |
|---|
If isNull returns "true" the variable has no value attached. isNull returns "false" for zero for numeric variables or blank for character/string. |
See also
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