1 AND Operator
- 1.1 Example 1: Display visit custom field based on conditions
- 1.2 Example 2: Display ethnicity field based on conditions
2 OR Operator
- 2.1 Example: Display death date field based on conditions
3 Example JSON

If you want to display a field based on multiple operators on add/edit pages, you can achieve that using AND/OR operators.

AND Operator

Example 1: Display visit custom field based on conditions

The visit custom field (Visit Details) is displayed on add/edit page only when the below conditions are true:

The 'visit site' has to be 'JSON Testing'.
The event label should be 'Baseline' or 'Pre-Surgery'.

{
     "name" : "visit.extensionDetail.attrsMap.ST2",
     "caption" : "Visit Details",
     "type" : "text",
     "optional" : true,
     "showInOverviewIf" : "useShowIf",
     "showIf" : {
       "op" : "AND",
       "rules" : [ {
         "field" : "visit.site",
         "op" : "==",
         "value" : "'JSON Testing'"
       }, {
         "field" : "visit.eventLabel",
         "op" : ".search('Baseline|Pre-Surgery') != ",
         "value" : "-1"
       } ]
       }
  }

The overview screen will look like this:

Example 2: Display ethnicity field based on conditions

In this code, the 'Ethnicity' participant field is displayed on add/edit page based on the below conditions:

The 'Gender' has to be 'Unknown'.
The 'Race' should be 'White'.

{
           "name": "cpr.participant.ethnicities",
           "caption": "Ethnicity",
           "type": "pvs",
           "attr": "ethnicity",
           "optional": true,
           "multiple": true,
           "showIf": {
             "op": "And",
             "rules": [
               {
                 "field": "cpr.participant.races",
                 "op": "==",
                 "value": "'White'"
               },
               {
                 "field": "cpr.participant.gender",
                 "op": "==",
                 "value": "'Unknown'"
               }
             ]
           },
           "showInOverviewIf": "useShowIf"
}

OR Operator

Example: Display death date field based on conditions

In this code, the 'Death Date' participant field is displayed on add/edit page based on the below conditions:

The ‘Vital Status' has to be 'Dead’ OR 'Unspecified'.

{
           "name": "cpr.participant.deathDate",
           "caption": "Death Date",
           "type": "date",
           "optional": true,
           "showIf": {
             "op": "OR",
             "rules": [
               {
                 "field": "cpr.participant.vitalStatus",
                 "op": "==",
                 "value": "'Dead'"
               },
               {
                 "field": "cpr.participant.vitalStatus",
                 "op": "==",
                 "value": "'Unspecified'"
               }
             ]
           },
           "showInOverviewIf": "useShowIf"
}

Example JSON

Download

OpenSpecimen

Configure Fields Based on Multiple Operators

Analytics