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| Note |
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The rules added for skip logic are only reflected on add/edit pages. The overview page is a superset of all fields described in the data dictionary. |
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1. Show custom field based on value of another custom field
Example: Show
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the field
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'Relation
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To Proband
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' only if the value
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of field 'Proband'
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is equal to 'No'.
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| Code Block |
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| {
"name": "cpr.participant.extensionDetail.attrsMap.DD15",
"caption": "Relation To Proband",
"type": "dropdown",
"optional": true,
"showIf": {
"op": "AND",
"rules": [
{
"field": "cpr.participant.extensionDetail.attrsMap.RB10",
"op": "==",
"value": "'No'"
}
]
},
"listSource": {
"apiUrl": "forms/permissible-values",
"selectProp": "value",
"displayProp": "value",
"queryParams": {
"dynamic": {},
"static": {
"formName": "kMCParticipantExtension",
"controlName": "DD15"
}
}
}
} |
Screenshot when the field is hidden: 
Screenshot when the field is shown: 
|
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2. Show custom field only on create aliquots page
Example: Display the custom field 'Storage tube'
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field
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while creating the
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aliquots
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| Code Block |
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| {
"name": "specimen.extensionDetail.attrsMap.ST3",
"caption": "Storage tube",
"type": "text",
"optional": "true",
"showIf": {
"op": "AND",
"rules": [
{
"field": "specimen.lineage",
"op": "==",
"value": "'Aliquot'"
}
]
}
} |
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3. Show custom field when the visit date is greater than specified date
Example: Show 'COVID-19 Test Date'
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custom field only when the visit date is after
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23 January, 2020
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.
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| Code Block |
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| language | js |
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| title | Example code |
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| {
"name" : "visit.extensionDetail.attrsMap.DP13",
"caption" : "COVID-19 Test Date",
"type" : "date",
"dateOnly" : true,
"optional" : true,
"showIf" : {
"op" : "AND",
"rules" : [ {
"field" : "visit.visitDate",
"op" : ">=",
"value" : "1579717800000"
} ]
},
"showInOverviewIf" : "useShowIf"
} |
| Info |
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"1579717800000" is the number of milliseconds elapsed since Unix time Epoch on 23/01/2020 at 00:00:00 hrs UTC. |
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4. Show custom field based on specimen lineage and type
Example
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:
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Display 'Upload image'
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custom field when
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the specimen lineage is 'New' and the specimen type is 'Whole Blood'.
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| Code Block |
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| {
"name" : "specimen.extensionDetail.attrsMap.FU2",
"caption" : "Upload image",
"type" : "file",
"optional" : true,
"showInOverviewIf" : "useShowIf",
"showIf" : {
"op" : "AND",
"rules" : [ {
"field": "specimen.lineage",
"op": "==",
"value": "'New'"
},{
"field" : "Specimen.type",
"op" : "==",
"value" : "'Whole Blood'"
} ]
}
}, |
The field looks like below on the specimen overview page: 
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