Editable Grid : update common Fields

RE: Editable Grid : update common Fields

Pranav K — Mon, 21 Feb 2022 18:35:46 GMT

Yes was able to fix it. Thanks for help 🙂

RE: Editable Grid : update common Fields

jasmithak — Mon, 21 Feb 2022 16:06:47 GMT

Able to fix the issue. need any help?

RE: Editable Grid : update common Fields

Pranav K — Mon, 21 Feb 2022 09:52:09 GMT

Thanks Mike, I got it now.

RE: Editable Grid : update common Fields

Mike Schmitt — Sun, 20 Feb 2022 19:33:45 GMT

[quote userid="71451" url="~/discussions/f/user-interface/23659/editable-grid-update-common-fields/91286#91286"]could you please explain me why are we using "[1]" as some sort of index ?[/quote]

The function wherecontains() returns an ARRAY TYPE value regardless of how many entries it contains. Thus a common way to pre-correct the result (such as the variable you're storing the value into) is to use the "hardcoded", [1] index. This makes the assumption that there will always be at least one match to the wherecontains() call. If it would ever be possible for an empty set to be returned, it would be better to use index(), i.e.

index(wherecontains(fv!item.studentId, local!student.id), 1, null())

... which will attempt to get "index 1" of the resulting array, if applicable, and if the resuling array has no "index 1", it will return the fallback value of "null()".

RE: Editable Grid : update common Fields

Pranav K — Sun, 20 Feb 2022 17:45:01 GMT

Hello Jasmithak,

I was trying to change the field for this expression you've given in above code

local!studentIndex: tointeger(
wherecontains(fv!item.studentId, local!student.id)
)[1],

due to some changes in my use case, It works fine for this field but as soon as I change the field, It throws me error saying :

Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error at function a!forEach [line 133]: Error in a!forEach() expression during iteration 1: Expression evaluation error : Invalid index (1) for list: valid range is empty

could you please explain me why are we using "[1]" as some sort of index ?

Thanks in advance.

RE: Editable Grid : update common Fields

jasmithak — Tue, 08 Feb 2022 14:41:07 GMT

load(
local!student: {
{ id: 1, name: "Kelly", country: null },
{ id: 2, name: "Jason", country: null },
{ id: 3, name: "David", country: null }
},
local!subject: {
{
subId: 1,
studentId: 1,
subject: "English",
status: ""
},
{
subId: 2,
studentId: 1,
subject: "Science",
status: ""
},
{
subId: 3,
studentId: 1,
subject: "Maths",
status: ""
},
{
subId: 4,
studentId: 2,
subject: "English",
status: ""
},
{
subId: 5,
studentId: 2,
subject: "Science",
status: ""
},
{
subId: 6,
studentId: 2,
subject: "Maths",
status: ""
},
{
subId: 4,
studentId: 3,
subject: "English",
status: ""
},
{
subId: 5,
studentId: 3,
subject: "Science",
status: ""
},
{
subId: 6,
studentId: 3,
subject: "Maths",
status: ""
}
},
a!formLayout(
contents: {
a!gridLayout(
headerCells: {
a!gridLayoutHeaderCell(label: "Student"),
a!gridLayoutHeaderCell(label: "Country"),
a!gridLayoutHeaderCell(label: "Subject"),
a!gridLayoutHeaderCell(label: "Status"),

},
columnConfigs: {
a!gridLayoutColumnConfig(width: "DISTRIBUTE"),
a!gridLayoutColumnConfig(width: "DISTRIBUTE"),
a!gridLayoutColumnConfig(width: "DISTRIBUTE"),
a!gridLayoutColumnConfig(width: "DISTRIBUTE")
},
rows: a!forEach(
items: local!subject,
expression: a!localVariables(
local!studentIndex: tointeger(
wherecontains(fv!item.studentId, local!student.id)
)[1],
a!gridRowLayout(
id: fv!index,
contents: {
a!textField(
readOnly: true,
value: local!student[wherecontains(fv!item.studentId, local!student.id)].name
),
a!dropdownField(
choiceLabels: { "country 1", "Country 2" },
choiceValues: { "country 1", "Country 2" },
placeholder: "Select Country",
value: tostring(
local!student[local!studentIndex].country
),
saveInto: {
local!student[local!studentIndex].country
}
),
a!textField(readOnly: true, value: fv!item.subject),
a!dropdownField(
choiceLabels: { "Pass", "Fail" },
choiceValues: { "Pass", "Fail" },
placeholder: "Select Status",
value: fv!item.status
)
}
)
)
)
)
},
buttons: a!buttonLayout(
primaryButtons: {
a!buttonWidget(
label :"Submit",
style:"PRIMARY",
value:true,
saveInto: {
a!writeToMultipleDataStoreEntities(
valuesToStore: {
a!entityData(
entity: cons!student_data_store_entity,
data:local!student
),
a!entityData(
entity: cons!subject_data_store_entity,
data:local!subject
)
},
onSuccess: {
a!save(
local!student,
fv!storedValues[1]
),
a!save(
local!subject,
fv!storedValues[2]
)
}
)
},
)
}
)
)
)

on submit data will be written to database table.

RE: Editable Grid : update common Fields

jasmithak — Tue, 08 Feb 2022 14:32:19 GMT

your requirement is update and country, status and write it back to DB?

RE: Editable Grid : update common Fields

Mike Schmitt — Tue, 08 Feb 2022 13:56:05 GMT

When implemented in a "real" task as opposed to an example that anyone can copy and paste, generally you would be acting directly upon the student data (i.e. via "ri!student"), rather than in a local variable. Sometimes it's necessary to do such processing on a local variable instead, and in those cases you can simply save the contents of the local variable back into the rule input when the user clicks the Submit button.

RE: Editable Grid : update common Fields

Mike Schmitt — Tue, 08 Feb 2022 13:34:35 GMT

FYI, code like the above will be considerably easier to read if you use the Code Box feature here.

RE: Editable Grid : update common Fields

Pranav K — Tue, 08 Feb 2022 07:57:57 GMT

Yeah that's correct But I want to handle it on interface level and just pass rule inputs to process model to update my tables.

Thank you.

RE: Editable Grid : update common Fields

Pranav K — Tue, 08 Feb 2022 07:54:15 GMT

Thank you jasmithak ,

Above code does exactly what I want, the only issue I am facing is how to save this data in rule input which I'll be passing in process model to update my tables.

thanks again.

RE: Editable Grid : update common Fields

jasmithak — Tue, 08 Feb 2022 05:01:26 GMT

RE: Editable Grid : update common Fields

GopalK — Tue, 08 Feb 2022 04:25:23 GMT

Hi, So I assume that initially country field is blank and in grid also it will be showing as blank. In this case ,once user selects any value from country drop-down,you can use write to data store entity smart service in save into of this field or you can have this data in a local variable and once user submits the form you can update all data at once in process model.

RE: Editable Grid : update common Fields

Pranav K — Mon, 07 Feb 2022 19:38:15 GMT

Thank you Mike for the quick reply,

well this ain't my actual scenario but justifies what I want to do with the grid,
So in my actual use case I am using view which is formed using two tables as the data for editable grid,

So based on that for above data you can say studentCountry and studentName will be kept unique in "student data" table and the subject & status will be coming from some another table "subject status" table

"student data" table is going to have one to many relationship with "subject status" table.

Thanks in advance.

RE: Editable Grid : update common Fields

Mike Schmitt — Mon, 07 Feb 2022 18:50:03 GMT

There are various potential approaches to this, but choosing which approach really kinda depends on the structure of your CDT and how you're using it in your interface. For example.. is the "student country" data really duplicated across every row of student/subject data? Or is it kept separate somewhere (i.e. just relative to a single Student entry)?