epf | A framework for keeping your Ember.js apps in sync
kandi X-RAY | epf Summary
kandi X-RAY | epf Summary
A framework for keeping your Ember.js apps in sync.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of epf
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QUESTION
Supposed that you have a python class (say B) that is a derived class of some other class (say A) and that class A has both class variables and @classmethods that help you change or view these class variables. I had assumed that a @classmethod in class A that sets a class A class variable using the syntax cls.variable_name = value would work.
This seems to work sometimes but not always which confuses me. Below is an example that does not set the class variables as I would expect. Therefore I cannot tell what cls.something will be accessing and so I have to use A.something which seems that I will be missing the capabilities of cls.something in @classmethods. What does cls.something actually access in class methods and why does the following example not set the test class class variables?
The following example with output hopefully demonstrates what I mean:
...ANSWER
Answered 2021-May-26 at 23:11Is it because
c.set_formatsuses the class method withclsbeing an instance?
Yes, you can check via print calls showing the ids of the involved objects.
QUESTION
This is my second time building a database and everything looks perfectly fine compared to my first database that works, but when I run it I get this error:
...ANSWER
Answered 2020-Dec-15 at 12:39If you are updating database in application, you need to upgrade database to update table.
Please check below link for reference. https://gist.github.com/matpag/b2545cc22c8e22449cd7eaf6b4910396
You can use below query while update table.
QUESTION
I am trying to pass data between two activities using Intents, but at the moment when I try to get the data from the previous activity it just gives me a value of 0 when I print it on the view.
I've searched for ages, but everything I find doesn't exist or is deprecated :(
FirstActivity:
...ANSWER
Answered 2020-Dec-09 at 09:36From your code above I assume that it should be:
QUESTION
After install of 2019-12 version of Eclipse I can't set black background while using Dark theme and Default set of colors. If I change color in General -> Editors -> Text Editors -> Appearance color options -> Background color - I see line numbers background color get changed to my choice, while text area remain in same dark grey, regardless of the color I choose.
I tried to manually edit epf preferences and import them back, but even this way doesn't work. Is there a some change/bug in Eclipse 2019-12 which override the user chose? There are some already answered questions about Eclipse colors, but I believe they are not helpful after recent changes.
...ANSWER
Answered 2020-Jan-06 at 08:11For those who come here by googling, you can change the color of Java editor, Package Explorer and Outline views background in one place, see file
QUESTION
I'm trying to figure out a homework assignment and I've run into a very specific weird problem. Basically I'm using regex to pull all of the operators and operands out one at a time in order of operations, and then pop them off a stack while printing them in the correct postfix notation. It works in most cases, however when running the unittest it fails test_infix14, test_infix_bad_expression, and test bad postfix. I can tell that it's something to do with the way + and - is coming out of the expression (I think) but I have no idea what's making it do it this way. Any help is appreciated. I thought I had this one good and done on Friday but this one little issue has occupied 2 whole days :P
...ANSWER
Answered 2020-Feb-27 at 23:43The problem is in your precedence function. The rules for the Shunting yard algorithm say:
QUESTION
Give me a simple answer because I can't understand big explain. I want to know the main work of having vs where.
Example=select custname,salary,(salary*0.04) as EPF from customer where EPF >1200;
select custname,salary,(salary*0.04) as EPF from customer having EPF >1200;
select custname from customer where salary >= 50000;
select custname from customer having salary >= 50000;
select custname,salary from customer where salary >= 50000;
...ANSWER
Answered 2019-Dec-23 at 03:50In SQL, having is reserved exclusively for aggregation queries. It is used to filter after aggregation.
MySQL extends the use of having so it can be used in non-aggregation queries. The purpose is so column aliases defined in the SELECT can be used in the having.
Hence, both these queries are valid in MySQL:
QUESTION
An “ADD” button in fragment calls the activity. By pressing “Done” button on this activity, I want to send data using bundle to previous fragment and closes this activity.
The problem I face is, on “Done” button click in activity nothing happens.
Fragment:
...ANSWER
Answered 2019-Dec-13 at 19:04You have to use interface to share data b/w activity and fragment.check this here
QUESTION
i'm trying to allow a user to update their user profile with a city, description, website address etc.
Using Django 2.0, I have two forms in one view:
EditProfileForm (EPF) = Form for email, first and last name and password
The EditProfileForm seems to be able to save data. However, EditUserProfile seems to not.
EditUserProfile (EUP) = Form for further user info such as city, description, website address etc.
When entering the data and submitting the form, the data for EUP form doesn't appear to save or update the user information
I've also tried methods such as:
...ANSWER
Answered 2019-Aug-29 at 07:10Here:
QUESTION
I am trying to get my head around with ReactiveUI. I created a new project with the following main packages:
- Xamarin.Forms 4.1.0.618606
- PropertyChanged.Fody 3.0.1
- ReactiveUI 9.19.5
- ReactiveUI.XamForms 9.19.5
The project have a page with associated viewmodel. I want to Bind View with the ViewModel using ReactiveUI. But the binding does not work. The project build and run but does not fire any property changed notification neither any command. The app needs to display a list of company names. But the list does not display the collection defined in ViewModel . The app should allows the user the sort the list with CollectionChangeCommand with every change in search query.
The View Code :
...ANSWER
Answered 2019-Jul-27 at 14:52In your MainPage.xaml.cs you never seem to create the ViewModel?
You are using INotifyPropertyChanged fody on a ReactiveObject, there is a ReactiveUI fody out there. You should not generate mix the INotifyPropertyChange on ReactiveObject's.
You have a vm property but that isn't created either.
On ReactiveContentControl it has a property called ViewModel which you need to set with something. That can be passed in from another control.
Also in your ViewModel.cs file you have a this.WhenAny but don't seem to do anything with the observable that is generated?
Be aware also that a better approach for the sorting might be to use the DynamicData framework which is part of the ReactiveUI family now.
You could do something like
ViewModel.cs:
QUESTION
I have extracted data from PDF which is in string format like below.(Please note on uneven spacing and new line characters).
...ANSWER
Answered 2019-Jul-25 at 09:35String fixedSizetoXML(String extractedTestFromPDF) {
String[] lines = extractedTestFromPDF.split("\\R");
Pattern pattern = Pattern.compile("^\\s*(\\S.{20})\\s\\s+([-\\d,\\.]+)\\s+.*$");
// (--------) (-----------)
return "\n\n"
+ Stream.of(lines)
.map(pattern::matcher)
.filter(m::find)
.map(m -> String.format("\n"
+ " %s\n"
+ " %s\n"
+ "\n",
m.group(1).trim(), m.group(2)))
.collect(Collectors.joining(""))
+ "\n";
}
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