Could not display interface. Please check definition and inputs.Interface Definition: Expression evaluation error at function a!forEach [line 438]: Error in a!forEach() expression during iteration 3: Expression evaluation error at function a!dropdownField

Question

Hi Everyone, 
 
 We have a editable grid with dropdown fields, second drop down(Evidence category) choice values purely dependent on first dropdown (Therapeutic area) selected value.I have configured the code like this but getting the above error. 
 
 Can you please help me a!sectionLayout(

label: "",

contents: {

a!gridLayout(

label: "",

labelPosition: "ABOVE",

headerCells: {

a!gridLayoutHeaderCell(label: "Therapeutic Area"),

a!gridLayoutHeaderCell(label: "Disease State"),

a!gridLayoutHeaderCell(label: "Evidence Category"),

a!gridLayoutHeaderCell(label: "Evidence Need"),

a!gridLayoutHeaderCell(label: "Priority"),

a!gridLayoutHeaderCell(label: "IEP Code"),

a!gridLayoutHeaderCell(label: "Year"),

a!gridLayoutHeaderCell(label: "Remove")

},

columnConfigs: {

a!gridLayoutColumnConfig(),

a!gridLayoutColumnConfig(width: "MEDIUM"),

a!gridLayoutColumnConfig(width: "MEDIUM_PLUS"),

a!gridLayoutColumnConfig(),

a!gridLayoutColumnConfig(width: "ICON")

},

rows: {

a!forEach(

ri!insertNewData,

a!gridRowLayout(

contents: {

a!dropdownField(

label: "Therapeutic Area",

placeholder: "---Please Select---",

choiceLabels: index(local!therapeuticArea, "name", {}),

choiceValues: index(

local!therapeuticArea,

"therapeuticAreaId",

{}

),

value: fv!item.therapeuticAreaId,

saveInto: {

fv!item.therapeuticAreaId,

a!save(fv!item.diseaseStateId, null)

},

required: true(),

validationGroup: cons!ISR_VALIDATION_GROUP_SUBMIT

),

a!dropdownField(

label: "Disease State",

placeholder: "---Please Select---",

choiceLabels: index(local!diseaseState, "diseaseState", {}),

choiceValues: index(local!diseaseState, "diseaseStateId", {}),

value: fv!item.diseaseStateId,

saveInto: { fv!item.diseaseStateId },

required: if(

fv!item.therapeuticAreaId = cons!ISR_REF_TAID_ONCOLOGY,

true,

false

),

validationGroup: cons!ISR_VALIDATION_GROUP_SUBMIT,

disabled: if(

fv!item.therapeuticAreaId = cons!ISR_REF_TAID_ONCOLOGY,

false,

true

)

),

a!textField(

label: "Evidence Category",

labelPosition: "ABOVE",

value: fv!item.evidenceCategory,

placeholder: "Enter the value for Evidence Category",

saveInto: { fv!item.evidenceCategory, },

required: true(),

characterLimit: cons!ISR_TEXT_LENGTH,

showCharacterCount: true(),

validationGroup: cons!ISR_VALIDATION_GROUP_SUBMIT/*validations: if(*/

/*contains(*/

/*tointeger(local!isDataExist),*/

/*tointeger(fv!item.rowNum)*/

/*),*/

/*"A record for this TA/Evidence/Priority/IEP/Year combination already exists.",*/

/*{}*/

/*)*/

),

a!textField(

label: "Evidence Need",

labelPosition: "ABOVE",

value: fv!item.evidenceNeed,

placeholder: "Enter the value for Evidence Need",

saveInto: { fv!item.evidenceNeed, },

characterLimit: cons!ISR_PARAGRAPH_LENGTH,

showCharacterCount: true(),

/*required: true(),*/

/*validations: if(*/

/*contains(*/

/*tointeger(local!isDataExist),*/

/*tointeger(fv!item.rowNum)*/

/*),*/

/*"A record for this TA/Evidence/Priority/IEP/Year combination already exists.",*/

/*{}*/

/*)*/

),

/*a!textField(*/

/*label: "Priority",*/

/*labelPosition: "ABOVE",*/

/*value: fv!item.priority,*/

/*placeholder: "Enter the value for Priority",*/

/*required: true(),*/

/*saveInto: { fv!item.priority },*/

/*validations: if(*/

/*contains(*/

/*tointeger(local!isDataExist),*/

/*tointeger(fv!item.rowNum)*/

/*),*/

/*"A record for this TA/Evidence/Priority/IEP/Year combination already exists.",*/

/*{}*/

/*)*/

/* */

/*),*/

a!dropdownField(

label: "Priority",

placeholder: "---Please Select---",

choiceLabels: local!priority,

choiceValues: local!priority,

value: fv!item.priority,

saveInto: { fv!item.priority },

/*required: true()*/

),

a!textField(

label: "IEP Code",

labelPosition: "ABOVE",

value: fv!item.IEPCode,

placeholder: "Enter the value for IEP Code",

required: true(),

saveInto: { fv!item.IEPCode },

characterLimit: cons!ISR_TEXT_LENGTH,

showCharacterCount: true(),

validationGroup: cons!ISR_VALIDATION_GROUP_SUBMIT/*validations: if(*/

/*contains(*/

/*tointeger(local!isDataExist),*/

/*tointeger(fv!item.rowNum)*/

/*),*/

/*"A record for this TA/Evidence/Priority/IEP/Year combination already exists.",*/

/*{}*/

/*)*/

),

a!textField(

label: "Year",

labelPosition: "ABOVE",

placeholder: "Enter the value for Year",

value: fv!item.year,

/*required: true(),*/

saveInto: { fv!item.year },

/*validations: if(*/

/*contains(*/

/*tointeger(local!isDataExist),*/

/*tointeger(fv!item.rowNum)*/

/*),*/

/*"A record for this TA/Evidence/Priority/IEP/Year combination already exists.",*/

/*{}*/

/*)*/

),

a!imageField(

images: a!documentImage(

document: a!iconIndicator("REMOVE"),

altText: "Remove Item",

caption: "Remove Condition",

link: a!dynamicLink(

label: "",

value: fv!index,

saveInto: {

a!save(

ri!insertNewData,

remove(ri!insertNewData, fv!index)

)

}

)

),

size: "ICON"

)

}

)

},

selectionSaveInto: {},

addRowLink: a!dynamicLink(

label: "Add Row",

saveInto: {

a!save(

ri!insertNewData,

append(

ri!insertNewData,

'type!{urn:com:appian:types:IR4ISRA}ISR_v_studyGaps_evidenceCategory'()

)

}

),

/*validations: {*/

/*a!validationMessage(*/

/*message: "A record for this TA/Evidence/Priority/IEP/Year combination already exists. Please use Edit IEP Codes to update the values.",*/

/*validateAfter: "REFRESH",*/

/*showWhen: not(rule!APN_isEmpty(local!isDataExist))*/

/*)*/

/*},*/

shadeAlternateRows: true

),

a!buttonLayout(

primaryButtons: {

a!buttonWidget_23r3(

label: "Submit",

submit: true,

validate: true,

disabled: if(

a!isNullOrEmpty(ri!insertNewData),

true(),

or(

a!forEach(

items: ri!insertNewData,

expression: or(

a!isNullOrEmpty(index(fv!item, "therapeuticAreaId", {})),

a!isNullOrEmpty(index(fv!item, "evidenceCategory", {})),

a!isNullOrEmpty(index(fv!item, "IEPCode", {})),

if(

fv!item.therapeuticAreaId = cons!ISR_REF_TAID_ONCOLOGY,

a!isNullOrEmpty(index(fv!item, "diseaseStateId", {})),

{}

)

),

validationGroup: cons!ISR_VALIDATION_GROUP_SUBMIT,

saveInto: {

a!save(ri!action, 1),

a!startProcess_24r3(

processModel: cons!ISR_PM_ADMIN_IEP_CODES,

processParameters: {

actionFlag: cons!ISR_ADMIN_PORTAL_IEP_CODES_ACTION[2],

/* Text */

insertedEvidenceIEPCdt: ri!insertNewData,

/* List of ISR_v_studyGaps_evidenceCategory */

}

)

},

style: "PRIMARY",

)

},

secondaryButtons: {

a!buttonWidget_23r3(

label: "Cancel",

value: true,

saveInto: { ri!cancel, a!save(ri!action, 1) },

submit: true,

style: "NORMAL",

validate: false

)

}

)

}

)

Stefan Helzle · Answer

I think we already have an answer here: community.appian.com/.../could-not-display-interface-please-check-definition-and-inputs-interface-definition-expression-evaluation-error-at-function-a-foreach-line-438-error-in-a-foreach-expression-during-iteration-3-expression-evaluation-error-at-fu