Autocomplete - Custom Picker - The function 'suggestfunction' is unavailable

Question

I'm trying to create an autocomplete functionnality with the custom picker component. Basically, it would live query a service with a text parameter (the field we are typing in).

I've created an expression rule which seems to works well :

if(
rule!APN_isBlank(
    ri!searchText
),
a!dataSubset(
    data: {},
    identifiers: {}
),
with(
    local!resultat: rule!XXXX_Adresses_Integration(
      ri!searchText
    ).result,
    local!adresses: if(
      rule!APN_isBlank(
        local!resultat.body.results
      ),
      {},
      local!resultat.body.results.attrs.label
    ),
    local!filteredAdresses: union(
      local!adresses,
      local!adresses
    ),
    a!dataSubset(
      data: local!filteredAdresses,
      identifiers: local!filteredAdresses
    )
)
)

Basically, it returns me a DataSubset based on the query.

This is a Dataset with result :

'type!{www.appian.com/.../2009}DataSubset'('sort': {null}, 'data': {"Chemin des Uttins 1267 Coinsins", "Avenue des Uttins 1180 Rolle", "Rue des Uttins 1436 Chamblon", "Rue des Uttins 1400 Yverdon-les-Bains"}, 'identifiers': {"Chemin des Uttins 1267 Coinsins", "Avenue des Uttins 1180 Rolle", "Rue des Uttins 1436 Chamblon", "Rue des Uttins 1400 Yverdon-les-Bains"})

This is a Dataset with no result :

'type!{www.appian.com/.../2009}DataSubset'('sort': {null}, 'data': {}, 'identifiers': {})

But when I try to use it in my interface, I have difficulties.

This is the code of my custom picker (I've tried multiple configurations) :

a!pickerFieldCustom(
    placeholderLabel: "--Select a New Case--",
    label: "Custom Picker",
    labelPosition: "ABOVE",
    maxSelections: 1,
    suggestFunction: rule!SIRA_SearchAdress(ri!rule_Enseigne.Localite),
    selectedLabels: if(fn!isnull(ri!rule_Enseigne.Localite),null, ri!rule_Enseigne.Localite)
)

When I try to type something in the field, this is the error message I have :

Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error at function a!pickerFieldCustom [line 86]: The function 'suggestfunction' is unavailable.

I don't know how to debug, and what I've done wrong. Has someone an idea ? Is it possible to do such a functionnality ?

Vinay Kumar Rai · Accepted Answer

Hi, 
 
Try this 
 
a!pickerFieldCustom( 
 placeholderLabel: "--Select a New Case--", 
 label: "Custom Picker", 
 labelPosition: "ABOVE", 
 maxSelections: 1, 
 suggestFunction: rule!SIRA_SearchAdress(_), 
 selectedLabels: if(fn!isnull(ri!rule_Enseigne.Localite),null, ri!rule_Enseigne.Localite), 
 value : ri!rule_Enseigne.Localite, 
 saveInto : ri!rule_Enseigne.Localite 
) 
 
Thanks 
Vinay

Autocomplete - Custom Picker - The function 'suggestfunction' is unavailable

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