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Increment field Example #92

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aminediab opened this issue Mar 4, 2019 · 25 comments
Closed

Increment field Example #92

aminediab opened this issue Mar 4, 2019 · 25 comments

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@aminediab
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aminediab commented Mar 4, 2019 •
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hi all!
I am trying to test the increment option using the following code but have no luck, could anyone please indicate what I am doing wrong!
Thanks,

var apiResponse = await DietPlan()
.getObject('i1FgSlj5TJ');

if (apiResponse.success && apiResponse.result != null) {
  var dietPlan = apiResponse.result as DietPlan;
  dietPlan.increment('Carbs', 10);
  dietPlan.save();
}
@phillwiggins
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phillwiggins commented Mar 4, 2019 via email

@aminediab
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Hi Phill,
I tried it without the save option, still not updating the field, i am on back4app and able to verify it! no change. I understood that the increment marks the field for update, and running the save command commits the update! any thoughts, and by the way I thank you for your great efforts and support :)

@phillwiggins
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It should just work server side when you increment. The increment method returns a Result object. Can you verify the result that is returned after calling increment?

I.e.

'var response = dietPlan.increment('Carbs', 10);'

@aminediab
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OK the response is => (Instance of 'Future') with no returned object!
in debugging the variable it is shows a bunch of errors!

@phillwiggins
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phillwiggins commented Mar 4, 2019 via email

@aminediab
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Phill I don't see that you missed the await!

/// Increases a num of an object by x amount
Future increment(String key, num amount) async {
if (key != null) {
return await _increment(ParseApiRQ.increment, "Increment", key, amount);
} else {
return null;
}
}

@phillwiggins
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Apologies, I meant my code example to you. I missed the await.

'var response = await dietPlan.increment('Carbs', 10);'

@aminediab
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OK, now the response result is null, and i have a parse error: Unexpected End of Json Input

@phillwiggins
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phillwiggins commented Mar 4, 2019 via email

@aminediab
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Great, I have another question when deleting and object the two parameters are path and objectId. The path is the local storage path, when pinning an object, lets say i want to pin a diet plan object, what path do i use for deleting it in both online and local?

@aminediab
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I did not realize it was that late in the evening! good night we'll pick it up tomorrow, thanks a lot

@phillwiggins
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phillwiggins commented Mar 5, 2019 via email

@aminediab
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Good Morning Phill,
Thank you for taking the time to fix the errors. I have another question, after successfully pinning a diet_plan object I tried to delete it online and locally, however I don't know what is the path that i should use, in this case used null! I can delete online but not locally, to test I used the following code as example, what is the path syntax?

void deleteDietPlanObject() async {
var apiResponse = await DietPlan().delete(null, 'i1FgSlj5TJ');
if (apiResponse.success && apiResponse.result != null) {
print(ApplicationConstants.keyAppName +
": " +
apiResponse.result.toString());
}

// test if pin exists
DietPlan newDietPlanFromPin = await DietPlan().fromPin('i1FgSlj5TJ');
if (newDietPlanFromPin != null) {
print(newDietPlanFromPin.get('Carbs'));
print('Retreiving from pin worked!');
} else {
print('Error');
}
}

@phillwiggins
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phillwiggins commented Mar 5, 2019 via email

@RodrigoSMarques
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@phillwiggins and @aminediab.

I found the reason for the error in increment and decrement. I'm completing the tests and I'm going to upload a PR.

The same solution will solve problems in addAll, addUnique and add in List.

I'll also add support for Pointer.

Same as increment and decrement and list operations, saving a Pointer must be done in two steps at creation.

First you must save the object and then use the result of the Response (as ParseObject) and perform the operations.

During creation ParseObject does not have the objectId, only the response it has. Then the response is used to perform the operations.

Sorry, I'm not fluent in English I'm using a translator for support.

@phillwiggins
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phillwiggins commented Mar 7, 2019 via email

@aminediab
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Thanks Rodrigo!

@aminediab
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Phill/Rodrigo,

You all are doing a Great Job. I really believe, once most of the parse server functionality is implemented and tested, this Flutter Parse Server Package will surely be in the Top 10!

As a reminder, The increment and decrement still not working as of your latest git. Rodrigo mentioned he is going to fix it!

@RodrigoSMarques
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Hi @aminediab,
I had changed and tested counters (increment and decrement).
I checked now that the changes did not go up to git. I am checking what happened and I will soon do a PR.

@RodrigoSMarques
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Hi @aminediab.
Try again.

Update pubspec.yaml

dependencies:
flutter:
sdk: flutter
#parse_server_sdk: ^1.0.15
parse_server_sdk:
git: git://github.com/phillwiggins/flutter_parse_sdk.git

@aminediab
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Hi Rodrigo,
I updated pubspec.yaml, the apiResponse.result returns the object successfuly. However, it failed on increment with error, parse error ! I also tried it with saving and without saving(last statement),

void incrementDietPlanProtein() async {
var apiResponse = await DietPlan().getObject('mqinMzhxJY');

if (apiResponse.success && apiResponse.result != null) {
  var myDiet = (apiResponse.result as DietPlan);
  var response = await myDiet.increment('Protein', 10);
  //myDiet.save();
}

}

@RodrigoSMarques
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RodrigoSMarques commented Mar 10, 2019 •
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Hi @aminediab

You can verify that the file code "lib/src/objects/parse_object.dart" in your local repository contains these changes here: https://github.com/phillwiggins/flutter_parse_sdk/pull/107/files

You can check this using Go To -> Declaration in Android Studio or Go To Definition in Visual Code

You can verify that the change is the same for array operations. Function _sortArrays:
https://github.com/phillwiggins/flutter_parse_sdk/pull/102/files

If you wait a while, I've created the setIncrement and setDecrement methods to be used in conjunction with save (), same as library for Android / iOS.

For example:
` var parseObject = ParseObject ("TestAPI", debug: true);

    parseObject.setIncrement ("intNumber2", 2);

   parseObject.setDecrement ("intNumber3", 2);

   apiResponse = await parseObject.save ();
`
I am finalizing the tests and I must release today or tomorrow.

@RodrigoSMarques
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Hi @aminediab

Did you take the test again? The new features are available in the latest release.

@RodrigoSMarques
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RodrigoSMarques commented Mar 28, 2019 •
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@phillwiggins
this issue can be closed.

Resolved in the last release.

Updated documentation.

@RodrigoSMarques
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@phillwiggins
Close this issue to keep open only what is in trouble.
Resolved in previous releases. It is inactive because it has not received any new comments.

@phillwiggins phillwiggins mentioned this issue Jun 18, 2019
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3 participants
@phillwiggins @RodrigoSMarques @aminediab