Cariosvertel

  NSString *urlString = @"api/refundo/connect_chat";
  NSURL *URL = [NSURL URLWithString:urlString relativeToURL:self.baseURL];

  NSDictionary *parameters = @{@"nonce": nonce,
                               @"user_id":[self getTaxPayerEmail]};
  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL];
  request.HTTPMethod = @"POST";
  request.HTTPBody = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
  [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

Cariosvertel

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/numpad_button_bg_selected" android:state_selected="true"></item>
    <item android:drawable="@drawable/numpad_button_bg_pressed" android:state_pressed="true"></item>
    <item android:drawable="@drawable/numpad_button_bg_normal"></item>

</selector>

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Swift

Background

DispatchQueue.global(qos: .background).async {
    // background things
    DispatchQueue.main.async {
        print("main thread dispatch")
    }
}

Cariosvertel

 getSupportFragmentManager()
                .beginTransaction()
                .add(containerViewId, fragment, fragmentTag)
                .disallowAddToBackStack()
                .commit();

Cariosvertel

@OnClick(R.id.submit)
public void submit(View view) {
  // TODO submit data to server...
}

All arguments to the listener method are optional.

@OnClick(R.id.submit)
public void submit() {
  // TODO submit data to server...

Cariosvertel

date_joined = models.DateTimeField(help_text=('date joined'), default=timezone.now)
company = models.CharField(max_length=200, blank=True, null=True,
    	help_text=("Current company user is working for"),
    )
# foreign key with no related name
user = models.ForeignKey(
    User,
    on_delete=models.CASCADE,
    related_name='+',
)

Cariosvertel

open package manager

cmd+shift+p

show console

ctrl + `

go to a line

ctrl + g

apply json format

Cariosvertel

# simple class with no models mappings
class LayerAuthSerializer(serializers.Serializer):
    nonce = serializers.CharField()
    display_name = serializers.CharField(required=False)
    avatar_url=serializers.CharField(required=False)
    

# a complex class definition
class CreateUserSerializer(serializers.Serializer):
	"""

Cariosvertel

from rest_framework import serializers
raise serializers.ValidationError({
'error': 'User already has liked this news.',
'code' : exception_handler.ERROR_DATA_INCONSISTENCY
})

Cariosvertel

#limit
Entry.objects.all()[:5]
# limit and offset
# 5 offset, 10 limit
Entry.objects.all()[5:10]

#sort latest by pub_date property
Entry.objects.filter(pub_date__isnull=False).latest('pub_date')

#return first object of the query