External Lists (BCS)

[Filipe Ribeiro]

I’m having an issue getting values from an external list (BCS)

Function

function setEntidade() {

var NIFProp = getFieldValue(“nif_ent_lista_externa”);

var res = spjs.utility.queryItems({
“listName”: “{87c6d972-6e38-4796-b398-05561531f36f}”,
“query”: “<Where><Eq><FieldRef Name=’NIF’ /><Value Type=’Text’>” + NIFProp + “</Value></Eq></Where>”,
“viewFields”: [“Title”]
});

var dataSourceArrayAll = res.items[0];
countEntidades = res.count;
alert(countEntidades);

// Verificar se tem registos (+ que 0)
if (countEntidades !== 0) {
.
.
.
.

Works great on {87c6d972-6e38-4796-b398-05561531f36f} (Sharepoint list) and returns the value correctly if it exists, else, shows a warning and do stuff (like display extra fields). On the {fc1dffb1-094f-4175-bdf7-27ee2b6fdf83} (BCS) throws errors

• This topic was modified 3 years, 4 months ago by Filipe Ribeiro.

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[Alexander Bautz]

Hi,
In an external list you don’t always have ID as the primary key. I added support for specifying the primary key back in 2017, but haven’t documented it other than in the change log – look here for an example: https://spjsblog.com/dffs/dffs-change-log/#SPJS-utilityjs_v1312

Alexander

[Filipe Ribeiro]

Hi,

I’m using an Entity identifier (NIF) to search for Entities in external list that have the correspondent value typed by the user in a text field, if it finds a match, get the value “Name” of that Entity into a text field on the form

[Filipe Ribeiro]

Read the link you sent, so I should add the primaryKEY parameter pointing to the ID column of the external list?

[Alexander Bautz]

The reason you get an error in the first place is that this external list most likely do not use “ID” as the primary key. You must go to the list settings and find the internal name of the field used as primary key – it may be “item_id” or something like that.

Alexander

[Filipe Ribeiro]

And then how to proceed If I find it off course 🙂

[Filipe Ribeiro]

Added primaryKey parameter after identified the primarykey in the bd the alert still fires a “-1” when searching for the typed NIF

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[Alexander Bautz]

It’s hard to tell what could be wrong, but you can try to add this to the alert:

alert(res.errorText);

Not sure if it will actually contain any errors though. You can also look at the F12 > Network tab to see if you find any errors (typically red text) when running the query.

If you are not able to figure it out I recommend trying to read the data using the REST API. I found this from a Google search: https://prairiedeveloper.com/2017/07/manipulating-sharepoint-external-lists-using-rest/

I haven’t tried it – and I don’t have any external lists to test it against so I’m afraid I cannot really help you here.

Alexander

[Filipe Ribeiro]

I have good news. Used a cross list that has userID+PrimaryKEY from BCS and had to remake my function and it worked. It’s taking time consuming data from that external list but it is what it is. Thanks mate to pointing me to the missing piece of the puzzle :)))

[Alexander Bautz]

Thanks for the update – I’m glad you figured it out.

Alexander

[Filipe Ribeiro]

Alexander I cannot find the opposite of spjs.dffs.doReadOnly([“Title”]); How can one enable/edit a field

[Alexander Bautz]

It’s just spjs.dffs.undoReadOnly([“Title”]);

Alexander

[Filipe Ribeiro]

silly me. thanks mate

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