DecSoft Support - Serialization (like in Agenda Example) and Casting for Num and Dates

Serialization (like in Agenda Example) and Casting for Num and Dates

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Antonio Cambule

Hi there,

I have a Date Input and a Number Input on my view.
I used the Agenda example to serialize/deserialize data in local storage.

To get the values into the inputs i use:
 // For number: ObjectGetProp "[Item]" "Count" "[TempNumber]" StrToNumber "[TempNumber]" "[CountInput.Value]" // For date: ObjectGetProp "[Item]" "ExpirationDate" "[RecordDate]" NewDate "[RecordDate]" "" "[TempDate]" DateToJSDate "[TempDate]" "[ExpirationInput.Value]"

If do not cast the values i get errors.
So, is this the right way to go, do i need to cast them into the
correct types? Is there a an other approach to consider?

thanks and regards
Antonio

DecSoft

Hello Antonio,

In principle, always that we use the "StrSerialize" action, then we must to use their counter part "StrUnserialize" in order to get the proper value. Said that, we only can serialize Arrays and Objects variables. In other words, strings and numbers can be saved without any serialization/unserialization.

If what we wanted is to save the value of an Input Date we can do something like this:

// Our Date Input is named "DateInput"<br>NewDate "[DateInput.Value]" "" "[Date]"</p>
<p>// Get the timestamp of the selected date<br>DateToUnix "[Date]" "[DateTimestamp]"</p>
<p>// Save the timestamp into the app's local storage<br>SetOption "SavedDate" "[DateTimestamp]" "Number"

Then, to recover that value and place it again into an Date Input control we can codify something like the below one:

// Get a previously saved date timestamp<br>GetOption "SavedDate" "[DateTimestamp]"</p>
<p>// If certainly we have some value here<br>If "[DateTimestamp]" "!=" ""</p>
<p>  // Prepare a new Date variable using the saved timestamp<br>  NewDate "[DateTimestamp]" "X" "[Date]"</p>
<p>  // Set the Date variable into the Data Input control<br>  DateToJSDate "[Date]" "[DateInput.Value]"<br>EndIf

Hope this can help in something!

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