Struggling with trans in a input placeholder

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• Django. How to let image from model be used by OpenCV program in views.py?

  In views.py

  def index(request):
      transactions = Transaction.objects.all()
      image = transactions[0].image
      orig = image.copy() # This is where the error occurs because image is 
  

  an ImageField.
• How would I do these multiple joins as a Django queryset?

  I have this query that joins multiple tables together:

  select 
      p.player_id
      , d.player_data_1
      , l.year
      , l.league
      , s.stat_1
      , l.stat_1_league_average
  from 
      stats s
  inner join players p on p.player_id = s.player_id
  left join player_data d on d.other_player_id = p.other_player_id
  left join league_averages as l on l.year = s.year and l.league = s.year
  where 
      p.player_id = 123
  

  My models look like this:

  class Stats(models.Model):
      player_id = models.ForeignKey(Player)
      stat_1 = models.IntegerField()
      year = models.IntegerField()
      league = models.IntegerField()
  
  
  class Player(models.Model):
      player_id = models.IntegerField(primary_key=True)
      other_player_id = models.ForeignKey(PlayerData)
  
  class PlayerData(models.Model):
      other_player_id = models.IntegerField(primary_key=True)
      player_data_1 = models.TextField()
  
  class LeagueAverages(models.Model):
      year = models.IntegerField()
      league = models.IntegerField()
      stat_1_league_average = models.DecimalField()
  

  I can do something like this:

  Stats.objects.filter(player_id=123).select_related('player')
  

  to do the first join. For the second join, I tried:

  Stats.objects.filter(player_id=123).select_related('player').select_related('player_data')
  

  but I got this error:

  django.core.exceptions.FieldError: Invalid field name(s) given in select_related: 'player_data'. Choices are: player

  How would I do the third join considering that year and league aren't foreign keys in any of the tables? Thanks!
• Displaying content from 2 models on a single Django template

  I am working with my first Django project and I have printed my first template tag using a look onto my page template. I'd like to display some other database values on my page, but repeating the same process seems wrong.

  Here are my two models:

  class Drink(models.Model):
      drink_name = models.CharField(max_length=100)
      strength = models.IntegerField(default=0)
      def __str__(self):
          return self.drink_name
  
  
  class status(models.Model):
      user = models.OneToOneField(User, on_delete=models.CASCADE)
      health = models.IntegerField(default=100)
      strength = models.IntegerField(default=50)
      charisma = models.IntegerField(default=50)
  

  And my view:

  from django.shortcuts import render
  
  from .models import Drink
  from .models import status
  
  # Create your views here.
  def index(request):
      served_drinks = Drink.objects.order_by('strength')
      context = {'served_drinks': served_drinks}
      return render(request, 'tavern/index.html', context)
  

  And my template:

    Hello {{ user.get_username }}, welcome to the tavern.
  
    <br><br>
  
    <div class="card-panel teal lighten-3">Grab a drink from the bar</div>
    {% if served_drinks %}
        <ul>
        {% for drink in served_drinks %}
            <li>{{ drink.drink_name }} with a strength of {{ drink.strength }}</li>
        {% endfor %}
        </ul>
    {% else %}
        <p>No drinks are available.</p>
    {% endif %}
  

  Which returns:

  Hello admin, welcome to the tavern. 
  
  Grab a drink from the bar
  Water with a strength of 0
  Wine with a strength of 3
  Ale with a strength of 5
  Black Ale with a strength of 9
  

  As you can see I've printed out my served_drinks object in the template, but I also want to print out data from the status model on this page too.

  I've tried simply adding {{ status.health }} to the template but this does not work. Should I be adding extra information to the index view? If so, what if I want to show this information on many pages?
• NSLocale.current.language returning the wrong value

  When I change my language in iPhone settings it isn't reflected in NSLocale.current.language.

  Is this because my app does not support Spanish? I would expect it to be reflected regardless. Ultimately I'm trying to get the ISO 639-1 (2-digit) region code for the users preferred language.

  Code:

  guard var preferredLanguage = NSLocale.preferredLanguages.first else { return }
  
  for language in NSLocale.preferredLanguages {
      print("preferredLanguage: \(language)")
  }
  
  print("languageCode: \(NSLocale.current.languageCode)")
  print("regionCode: \(NSLocale.current.regionCode)")
  

  Output:

  preferredLanguage: es-US
  preferredLanguage: haw-US
  preferredLanguage: en-US
  languageCode: Optional("en")
  regionCode: Optional("US")
  
• Transformation functions in vulkan

  Can anyone help me find resources to study about how to implement transformation functions (Translation, rotation & scaling) using Vulkan API on windows platform? There are very limited sources on Vulkan as far as I know and I couldn't find a single material about transformations in Vulkan.
• Symfony2 translator - domain from another bundle

  I'm gonna explain what I'm trying to achieve:

  I have one bundle, let's say BundleA and another one called BundleB, both with his translation files. Also, both have a translation file called mytranslations

  BundleA -> mytranslations -> mykey: 'My translated text'

  BundleB -> mytranslations -> mykey: 'Another translated text'

  Now, if I try to translate from that file on my BundleA, on a controller for example, I'll do something like this:

  $translator->trans('mykey', array(), 'mytranslations');
  

  and I will get: My translated text

  If I do it on my BundleB, I'll do:

  $translator->trans('mykey', array(), 'mytranslations');
  

  and I will get: Another translated text

  What I want to achieve is to use that translator from BundleA but to get the translated text from BundleB, so in BundleA I'll do:

  $translator->trans('mykey', array(), 'mytranslations');
  

  and I get: Another translated text

  Any help will be highly appreciated.

  Cheers!