Hi iam looking for help.

Dorian · 2025-05-26T15:26:28.198+00:00

In my application i created several Pages that represent an app. What i understood is i cant reuse formulas because they are scoped. That is a problem for me. Aihelp told me the only viable option would be to create locale storage array where i can save data that i need. The use case is as follows:1. In my addPartner Page i want to click on a Logo, by doing so a script is triggered that upon clicking updates the local storage array with the partners ID or even name.2. In my homepage app i want to access localstorage array again and load up a dynimacally filled container that then contains the partnercards correponding with the appended data in the local storage array.What i foudn out via AI Help so far:I created a workflow saveSelectedPartnersToLocal that has KEY: selectedPartners and Value: [].From there on AI help tells me to retrieve array from Local storage by using a formula and entering this: getFromLocalStorage("selectedPartners"). My Problem here is that the ai tells my i have to magically Input it. But i dont get where since the ai is not able to explain the correct place to me.Maybe im oversseing the obvious but i couldnt finish the job with ais help.

Dorian

2 months ago

In my application i created several Pages that represent an app. What i understood is i cant reuse formulas because they are scoped. That is a problem for me. Aihelp told me the only viable option would be to create locale storage array where i can save data that i need. The use case is as follows:

1. In my addPartner Page i want to click on a Logo, by doing so a script is triggered that upon clicking updates the local storage array with the partners ID or even name.
2. In my homepage app i want to access localstorage array again and load up a dynimacally filled container that then contains the partnercards correponding with the appended data in the local storage array.

What i foudn out via AI Help so far:
I created a workflow saveSelectedPartnersToLocal that has KEY: selectedPartners and Value: [].
From there on AI help tells me to retrieve array from Local storage by using a formula and entering this: getFromLocalStorage("selectedPartners"). My Problem here is that the ai tells my i have to magically Input it. But i dont get where since the ai is not able to explain the correct place to me.

Maybe im oversseing the obvious but i couldnt finish the job with ais help.
@Dorian
In my application i created several Pages that represent an app. What i understood is i cant reuse formulas because they are scoped. That is a problem for me. Aihelp told me the only viable option would be to create locale storage array where i can save data that i need. The use case is as follows:

1. In my addPartner Page i want to click on a Logo, by doing so a script is triggered that upon clicking updates the local storage array with the partners ID or even name.
2. In my homepage app i want to access localstorage array again and load up a dynimacally filled container that then contains the partnercards correponding with the appended data in the local storage array.

What i foudn out via AI Help so far:
I created a workflow saveSelectedPartnersToLocal that has KEY: selectedPartners and Value: [].
From there on AI help tells me to retrieve array from Local storage by using a formula and entering this: getFromLocalStorage("selectedPartners"). My Problem here is that the ai tells my i have to magically Input it. But i dont get where since the ai is not able to explain the correct place to me.

Maybe im oversseing the obvious but i couldnt finish the job with ais help.
Lucas G

2 months ago

You're referencing two separate things here. In NC, while formulas created at a page or component level are not global, you can still create global formulas that can be accessed anywhere. Those are created from the left sidepanel.
As for how to save to local storage, you'd do so from the Events tab.
For example, from a click event
https://docs.nordcraft.com/references/actions#save-to-local-storage
Dorian

2 months ago

Thanks a lot for the reply. Unfortunately i have to pose another question because i dont fully understand.

I set a variable on a page thats initialized as array with [] but i set up global formulas that i can then use for when i click my logo? Is that the correct approach then? It doesnt have to be necessarily locally stored. Is the such a variable persistent or is it "garbage collected" after stoping the app to run?
Dorian

2 months ago

Ai tells me to do this but what exactly is the main input field in the formula section?

Enter the Formula
When the formula editor opens, enter the following code in the main input area:

getFromLocalStorage("selectedPartners")

This formula will return the value stored under the key "selectedPartners" in local storage, or null if nothing is stored yet. This is confirmed in the documentation:

Read a value from local storage with the provided key. The value found in local storage. If no value is found, this will return Null.
Get from Local Storage

Save the Formula
Save or confirm the formula as required in the editor.
Lucas G

2 months ago
@Dorian
Thanks a lot for the reply. Unfortunately i have to pose another question because i dont fully understand.

I set a variable on a page thats initialized as array with [] but i set up global formulas that i can then use for when i click my logo? Is that the correct approach then? It doesnt have to be necessarily locally stored. Is the such a variable persistent or is it "garbage collected" after stoping the app to run?
Lucas G

2 months ago

Variables aren't globally persistent, no
But the formula to set such a variable could be global if you don't want to repeat it, though it sounds like you could just set it up in your header component (on logo click)
Lucas G

2 months ago

If you're not currently using components, it's highly recommended
Dorian

2 months ago

I (we are two students in a project for uni) mostly use prototypes.
I hope its fine if i provide you with some pictures and ask for further help?
What i understood from your comments is is i need to set save my array locally to preserve it across pages. Therefore i created the following cycle:
my element (the blue payback one is clicked for an example) has a manually set id in this case one.
Tod

2 months ago

Great job @Dorian! Your contribution to the Nordcraft Community just made you advance to Community Level 1! 🌲
Dorian

2 months ago

I set up a reusable workflow AppendToLocal to Append the id to the selectedId array and then store it to locale storage.
All of that embedded in an onclick event. for the logo.
Dorian

2 months ago

On a second page i created a variable selectedId that aray thats to be filled again with the data from the local storage
Dorian

2 months ago

now i try to load the data from local storage.
Dorian

2 months ago

in the last step i think i bound the variable to a textbox. That now should display the numbers stored before in the array when i saved it locally. But that doesnt work. And i wonder why.
Dorian

2 months ago

This textbox binding doesnt make sense i only used this to confirm my setup works at all. In a next step based on the ids in the array id like to dynamically swap in partnercards like the ones seen the fourth picture.
@Dorian
I (we are two students in a project for uni) mostly use prototypes.
I hope its fine if i provide you with some pictures and ask for further help?
Lucas G

2 months ago

That's cool. If it's for a uni project I'm willing to hop on a call with you guys
@Dorian
I set up a reusable workflow AppendToLocal to Append the id to the selectedId array and then store it to locale storage.
Lucas G

2 months ago

These values you're setting won't work
You're setting strings, not actual objects/arrays
Lucas G

2 months ago

Same goes for the way you're retrieving the data
Lucas G

2 months ago

@Dorian take a look at this example: https://editor.nordcraft.com/projects/teal_boba_fett_puzzled_hornet/branches/start/components/HomePage
@Dorian
now i try to load the data from local storage.
salma

2 months ago

You’ll also need to use the get from local storage formula here

https://docs.nordcraft.com/references/formulas#get-from-local-storage

Hi iam looking for help.

Dorian

Lucas G

Dorian

Dorian

Lucas G

Lucas G

Lucas G

Dorian

Tod

Dorian

Dorian

Dorian

Dorian

Dorian

Lucas G

Lucas G

Lucas G

Lucas G

salma