Interfaces 102 Appian Developer Course

Question

Interface Definition: Expression evaluation error [evaluation ID = 0K0QK] : An error occurred while executing a save: Expression evaluation error: AA Maintenance must be indexed by its corresponding record type fields or relationships

Everything works just fine before I click on the last "Submit" button, where is I got this error message. I am not really able to visualize what is going on. Could anyone show me the issue or the problem?

a!localVariables(
 local!scheduleMaintenanceRequests: rule!I1_getScheduledMaintenance(10),
 local!selectedPackage,
 local!selectedMaintenanceRequest: local!selectedPackage,
 local!parts: {},
 {
 {
 a!localVariables(
 /* List of steps in the milestone bar */
 local!milestoneBarSteps: {"Select a Package", "Add Items", "Review and Submit"},
 local!currentMilestoneBarStep: 1,
 {
 a!columnsLayout(
 columns: {
 a!forEach(
 items: local!milestoneBarSteps,
 expression: if(
 /* Completed step */
 fv!index < local!currentMilestoneBarStep,
 a!columnLayout(
 contents: {
 a!cardLayout(
 contents: {
 a!sideBySideLayout(
 items: {
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 a!richTextItem(
 text: {
 a!richTextIcon(
 icon: "check",
 altText: "Completed step"
 )
 },
 size: "MEDIUM",
 style: "STRONG"
 )
 },
 align: "CENTER"
 ),
 width: "MINIMIZE"
 ),
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 a!richTextItem(
 text: upper(fv!item),
 size: "MEDIUM"
 )
 },
 align: "LEFT"
 )
 )
 }
 )
 },
 /* Link to go to selected step */
 link: a!dynamicLink(
 value: fv!index,
 saveInto: local!currentMilestoneBarStep
 ),
 style: "ACCENT",
 showBorder: false,
 accessibilityText: "Completed step. Press space to view step."
 )
 }
 ),
 if(
 /* Future step */
 fv!index > local!currentMilestoneBarStep,
 a!columnLayout(
 contents: {
 a!cardLayout(
 contents: {
 a!sideBySideLayout(
 items: {
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 a!richTextItem(
 text: fv!index,
 size: "MEDIUM",
 style:"STRONG"
 )
 },
 align: "CENTER"
 ),
 width: "MINIMIZE"
 ),
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 a!richTextItem(
 text: upper(fv!item),
 size: "MEDIUM"
 )
 },
 align: "LEFT"
 )
 )
 }
 )
 },
 height: "AUTO",
 style: "#efefef",
 marginBelow: "NONE",
 showBorder: false,
 accessibilityText: "Future step"
 )
 }
 ),
 /* Current step */
 a!columnLayout(
 contents: {
 a!cardLayout(
 contents: {
 a!sideBySideLayout(
 items: {
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 a!richTextItem(
 text: {
 a!richTextIcon(
 icon: "hand-o-right",
 altText: "Current step",
 size: "MEDIUM"
 )
 },
 size: "MEDIUM",
 style: "STRONG"
 )
 },
 align: "CENTER"
 ),
 width: "MINIMIZE"
 ),
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 a!richTextItem(
 text: upper(fv!item),
 size: "MEDIUM",
 style: "STRONG"
 )
 },
 align: "LEFT"
 )
 )
 }
 )
 },
 style: "ACCENT",
 showBorder: false,
 accessibilityText: "Current step"
 )
 }
 )
 )
 )
 )
 },
 spacing: "DENSE",
 stackWhen: {"PHONE","TABLET_PORTRAIT"}
 ),
 choose(
 local!currentMilestoneBarStep,
 {
 /*first step*/
 a!forEach(
 items: local!scheduleMaintenanceRequests,
 expression: a!cardLayout(
 contents: {
 a!sideBySideLayout(
 items: {
 a!sideBySideItem(
 item: a!imageField(
 label: "Image",
 labelPosition: "COLLAPSED",
 images: {
 a!documentImage(
 document: if(
 condition: a!isNullOrEmpty(
 fv!item['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{c7d0b689-e98f-4cb7-8477-6c63943b30a0}image']
 ),
 valueIfTrue: a!EXAMPLE_DOCUMENT_IMAGE(),
 valueIfFalse: fv!item['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{c7d0b689-e98f-4cb7-8477-6c63943b30a0}image']
 )
 )
 },
 size: "MEDIUM",
 isThumbnail: false,
 style: "STANDARD"
 ),
 width: "MINIMIZE"
 ),
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 a!richTextHeader(
 text: {
 fv!item['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{aea56eae-0801-450a-9aa5-5a1a41e48060}year'] & " " & fv!item['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{41ba4a5a-f36f-474a-b17d-c12f6869260f}make'] & " " & fv!item['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{19858bdc-1ba7-46b0-8f44-c9bdcbd61fca}model']
 },
 size: "MEDIUM"
 ),
 a!richTextItem(
 text: {
 fv!item['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.fields.{36dbff6f-ffca-41a0-902e-4e20ed0bc958}issue']
 }
 )
 }
 )
 )
 }
 )
 },
 link: a!dynamicLink(
 value: fv!item,
 saveInto: local!selectedPackage
 ),
 height: "AUTO",
 /*esse estilo deixa "selecionado"*/
 style: if(
 and(
 a!isNotNullOrEmpty(local!selectedPackage),
 fv!item = local!selectedPackage
 ),
 "ACCENT",
 "NONE"
 ),
 shape: "ROUNDED",
 marginBelow: "STANDARD"
 )
 ),
 a!sectionLayout(
 label: "Package Details",
 contents: {
 rule!AA_DASH_MaintenanceSummaryView(local!selectedPackage)
 },
 showWhen: a!isNotNullOrEmpty(local!selectedPackage)
 )
 },
 {
 /*second step*/
 a!gridLayout(
 headerCells: {
 a!gridLayoutHeaderCell(label: "Part"),
 a!gridLayoutHeaderCell(label: "Unit Cost"),
 a!gridLayoutHeaderCell(label: "Quantity"),
 a!gridLayoutHeaderCell(label: "Cost"),
 a!gridLayoutHeaderCell(label: "")

 },
 columnConfigs: {
 a!gridLayoutColumnConfig(weight: 3 ),
 a!gridLayoutColumnConfig(weight: 2 ),
 a!gridLayoutColumnConfig(weight: 1 ),
 a!gridLayoutColumnConfig(weight: 2 ),
 a!gridLayoutColumnConfig(width: "ICON")

 },
 rows: a!forEach(
 items: local!parts,
 expression: a!gridRowLayout(
 contents: {
 a!textField(
 value: fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{748b9f99-eb41-4b41-8005-f977d7395c69}name'],
 saveInto: fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{748b9f99-eb41-4b41-8005-f977d7395c69}name']
 ),
 a!textField(
 value: fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{fb926279-1850-4055-ba48-873fc47e1659}unitCost'],
 saveInto: fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{fb926279-1850-4055-ba48-873fc47e1659}unitCost']
 ),
 a!textField(
 value: fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{e3e1df6c-7f95-43c1-b8cd-1f3b0c921cae}qty'],
 saveInto: fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{e3e1df6c-7f95-43c1-b8cd-1f3b0c921cae}qty']
 ),
 a!textField(
 value: fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{e3e1df6c-7f95-43c1-b8cd-1f3b0c921cae}qty'] * fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{fb926279-1850-4055-ba48-873fc47e1659}unitCost'],
 readOnly: true
 ),
 a!richTextDisplayField(
 value: a!richTextIcon(
 icon: "times",
 link: a!dynamicLink(
 value: remove(local!parts, fv!index),
 saveInto: local!parts
 ),
 linkStyle: "STANDALONE",
 color: "NEGATIVE"

 )
 )

 }
 )
 ),
 addRowLink: a!dynamicLink(
 label: "Add Item",
 value: append(
 local!parts,
 'recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part'(
 'recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{748b9f99-eb41-4b41-8005-f977d7395c69}name': null,
 'recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{fb926279-1850-4055-ba48-873fc47e1659}unitCost': null,
 'recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{e3e1df6c-7f95-43c1-b8cd-1f3b0c921cae}qty': null
 )
 ),
 saveInto: local!parts


 )

 )
 },
 {
 /* Replace this rich text with the component or rule that should populate this step */
 a!sectionLayout(
 label: "Maintenance Information",
 contents: {
 a!cardLayout(
 contents: {
 a!sideBySideLayout(
 items: {
 a!sideBySideItem(
 item: a!imageField(
 label: "Image",
 labelPosition: "COLLAPSED",
 images: {
 a!documentImage(
 document: if(
 condition: a!isNotNullOrEmpty(local!selectedPackage['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{c7d0b689-e98f-4cb7-8477-6c63943b30a0}image']),
 valueIfTrue: local!selectedPackage['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{c7d0b689-e98f-4cb7-8477-6c63943b30a0}image'],
 valueIfFalse: a!EXAMPLE_DOCUMENT_IMAGE()
 )
 )
 },
 size: "MEDIUM",
 isThumbnail: false,
 style: "STANDARD"
 ),
 width: "MINIMIZE"
 ),
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 a!richTextHeader(
 text: 
 local!selectedPackage['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{aea56eae-0801-450a-9aa5-5a1a41e48060}year'] & " " &
 local!selectedPackage['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{41ba4a5a-f36f-474a-b17d-c12f6869260f}make'] & " " &
 local!selectedPackage['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.relationships.{b3dea6a6-f9d2-4201-a5f7-bb4126b9f6e1}vehicle.fields.{19858bdc-1ba7-46b0-8f44-c9bdcbd61fca}model'],
 size: "MEDIUM"
 ),
 a!richTextItem(
 text: local!selectedPackage['recordType!{4159bc7e-822e-44d7-bdea-42ce7ab5c096}AA Maintenance.fields.{36dbff6f-ffca-41a0-902e-4e20ed0bc958}issue']
 )
 }
 )
 )
 }
 )
 },
 height: "AUTO",
 shape: "ROUNDED",
 marginBelow: "STANDARD"
 )
 }
 ),
 a!sectionLayout(
 label: "PARTS",
 contents: {
 a!gridField(
 data: local!parts,
 columns: {
 a!gridColumn(
 label: "Part",
 value: fv!row['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{748b9f99-eb41-4b41-8005-f977d7395c69}name']
 ),
 a!gridColumn(
 label: "Unit Cost",
 value: fv!row['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{fb926279-1850-4055-ba48-873fc47e1659}unitCost'] 
 ),
 a!gridColumn(
 label: "Quantity",
 value: fv!row['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{e3e1df6c-7f95-43c1-b8cd-1f3b0c921cae}qty']
 ),
 a!gridColumn(
 label: "Cost",
 value: fv!row['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{fb926279-1850-4055-ba48-873fc47e1659}unitCost'] * fv!row['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{e3e1df6c-7f95-43c1-b8cd-1f3b0c921cae}qty']
 ),
 }
 )
 },
 ),
 a!richTextDisplayField(
 value: a!richTextItem(
 text: "Estimate Total: "&
 if(
 length(local!parts)>0,
 sum(local!parts['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{e3e1df6c-7f95-43c1-b8cd-1f3b0c921cae}qty'] * local!parts['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{fb926279-1850-4055-ba48-873fc47e1659}unitCost']),
 0
 ),
 style: "STRONG"
 ),
 align: "RIGHT"
 )
 }

 ),
 a!columnsLayout(
 columns: {
 a!columnLayout(
 contents: {
 a!buttonArrayLayout(
 buttons: {
 a!buttonWidget(
 label: "Back",
 value: local!currentMilestoneBarStep - 1,
 saveInto: local!currentMilestoneBarStep,
 style: "OUTLINE",
 showWhen: local!currentMilestoneBarStep > 1
 ),
 a!buttonWidget(
 label: "Cancel",
 style: if(
 local!currentMilestoneBarStep = 1,
 "OUTLINE",
 "LINK"
 )
 )
 },
 align: "START"
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!buttonArrayLayout(
 buttons: a!buttonWidget(
 label: if(
 local!currentMilestoneBarStep = length(local!milestoneBarSteps),
 "Submit",
 "Next"
 ),
 saveInto: if(
 local!currentMilestoneBarStep = length(local!milestoneBarSteps),
 {
 a!forEach(
 items: local!parts,
 expression:
 a!save(
 target: fv!item['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{0ea77c5d-4f9c-40e6-b4cc-7c4498646257}maintenanceId'],
 value: local!selectedPackage['recordType!{cd5f88a2-e8fd-42ef-9914-a827dccf5023}I1 Part.fields.{0ea77c5d-4f9c-40e6-b4cc-7c4498646257}maintenanceId']
 )
 ),
 a!save(
 target: ri!parts,
 values: local!parts
 ),
 },
 a!save(
 local!currentMilestoneBarStep,
 local!currentMilestoneBarStep + 1
 )
 ),
 style: "SOLID"
 )
 )
 }
 )
 }
 )
 }
 )
 }
 
 }
)

Stefan Helzle · Accepted Answer

Difficult to say, as it seems there is some code missing. In general, you have to reference fields in a record using the record syntax, but not dot-notation. 
 https://docs.appian.com/suite/help/23.4/reference-records.html#reference-record-values-in-the-record-type