Django-在for循环中访问列表的子列表

Question

I have a query that outputs data in the following format:

[["W/E 6/11/17", "Carter, J", 40.0],
 ["W/E 6/18/17", "Carter, J", 40.0],
 ["W/E 6/11/17", "Linn, K", 27.0],
 ["W/E 6/18/17", "Linn, K", 27.0],
 ["W/E 6/11/17", "Massey, S", 55.0],
 ["W/E 6/18/17", "Massey, S", 45.0]]

My query:

emp3 = (
    Projectsummaryplannedhours.objects.values(
        'employeename', 'displayval')
    .order_by()
    .filter(businessunit='a')
    .filter(billinggroup__startswith='PLS - Pip')
    .filter(Q(displayval=sunday2)|Q(displayval=sunday))
    .annotate(plannedhours__sum=Sum('plannedhours'))
)

In my template, I'm currently using a for loop, but it returns all items in the list, rather than just the first list of lists.

{% for x in emp3 %}
{{x.employeename}}
{{x.plannedhours__sum}}

What I would like to do is iterate through the list and display Employee: Value for W/E 6/11, Value for W/E 6/18 in a horizontal form.

Model:

class Projectsummaryplannedhours(models.Model):
    number = models.CharField(db_column='Number', max_length=50, blank=True, null=True)  # Field name made lowercase.
    description = models.CharField(db_column='Description', max_length=100, blank=True, null=True)  # Field name made lowercase.
    clientname = models.CharField(db_column='ClientName', max_length=100, blank=True, null=True)  # Field name made lowercase.
    department = models.CharField(db_column='Department', max_length=50, blank=True, null=True)  # Field name made lowercase.
    billinggroup = models.CharField(db_column='BillingGroup', max_length=50, blank=True, null=True)  # Field name made lowercase.
    businessunit = models.CharField(db_column='BusinessUnit', max_length=50, blank=True, null=True)  # Field name made lowercase.
    employeename = models.CharField(db_column='EmployeeName', max_length=50, blank=True, null=True)  # Field name made lowercase.
    displayval = models.CharField(db_column='DisplayVal', max_length=50, blank=True, null=True)  # Field name made lowercase.
    startofweek = models.DateTimeField(db_column='StartOfWeek', blank=True, null=True)  # Field name made lowercase.
    endofweek = models.DateTimeField(db_column='EndOfWeek', blank=True, null=True)  # Field name made lowercase.
    plannedhours = models.DecimalField(db_column='PlannedHours', max_digits=10, decimal_places=5, blank=True, null=True)  # Field name made lowercase.
    rateschedule = models.CharField(db_column='RateSchedule', max_length=50, blank=True, null=True)  # Field name made lowercase.
    classification = models.CharField(db_column='Classification', max_length=50, blank=True, null=True)  # Field name made lowercase.
    dollarsforecast = models.DecimalField(db_column='DollarsForecast', max_digits=10, decimal_places=5, blank=True, null=True)  # Field name made lowercase.
    deleted = models.NullBooleanField(db_column='Deleted')  # Field name made lowercase.
    datelastmodified = models.DateTimeField(db_column='DateLastModified', blank=True, null=True)  # Field name made lowercase.
    datecreated = models.DateTimeField(db_column='DateCreated', blank=True, null=True)  # Field name made lowercase.

Updated Query:

emp3_list = Projectsummaryplannedhours.objects.values('employeename', 'displayval').order_by().filter(businessunit='a').filter(billinggroup__startswith='PLS - Pip').filter(Q(displayval=sunday2)|Q(displayval=sunday)).annotate(plannedhours__sum=Sum('plannedhours'))
emp3 = map(lambda x: {'date': x[0], 'employee_name': x[1], 'planned_hours': x[2]}, emp3_list)

Every query I have tried:

def DesignHubR(request):
#emp1 = Projectsummaryplannedhours.objects.filter(employeename__startswith='Linn').values_list('endofweek').annotate(plannedhours__sum=Sum('plannedhours'))

day = datetime.datetime.today()
start = day - timedelta(days=day.weekday())
s1 = start + timedelta(days=6)
day2 = day + + timedelta(days=7)
start2 = day2 - timedelta(days=day.weekday())
s2 = start2 + timedelta(days=6)
sunday = datetime.datetime.strftime(s1, "W/E %#m/%#d/%y")
sunday2 = datetime.datetime.strftime(s2, "W/E %#m/%#d/%y")
employee = Projectsummaryplannedhours.objects.order_by().values_list('employeename', flat=True).distinct().filter(businessunit='a').filter(billinggroup__startswith='PLS - Pip')
emp1 = Projectsummaryplannedhours.objects.values_list('displayval', 'employeename').filter(businessunit='a').filter(billinggroup__startswith='PLS - Pip').filter(displayval=sunday).annotate(plannedhours__sum=Sum('plannedhours'))
emp4 = Projectsummaryplannedhours.objects.filter(employeename__startswith='Linn').filter(Q(displayval=sunday2)|Q(displayval=sunday)).annotate(plannedhours__sum=Sum('plannedhours'))
emp2 = Projectsummaryplannedhours.objects.values_list('displayval', 'employeename').filter(businessunit='a').filter(billinggroup__startswith='PLS - Pip').filter(Q(displayval=sunday2)|Q(displayval=sunday)).annotate(plannedhours__sum=Sum('plannedhours'))
emp3_list = Projectsummaryplannedhours.objects.values_list('displayval', 'employeename').filter(businessunit='a').filter(billinggroup__startswith='PLS - Pip').filter(Q(displayval=sunday2)|Q(displayval=sunday)).annotate(plannedhours__sum=Sum('plannedhours'))
emp3 = map(lambda x: {'date': x[0], 'employee_name': x[1], 'planned_hours': x[2]}, emp3_list)
context = {'emp1': emp1, 'emp2': emp2, 'sunday2': sunday2, 'employee': employee, 'emp3': emp3, 'emp4': emp4}
return render(request,'department_hub_ple.html', context)

Answer 1

You can use list indexes in the following way:

{{ x.0 }}

So your template might look like (without any markup or styling):

{% for x in emp3 %}
  {{ x.1 }}
  {{ x.2 }}
{% endfor %}

See Docs on Variables and Lookups

EDIT

If you're looking for a way to use only the list in your list-of-lists, you can chain lookups. The following example would give the second element of the first list.

{{ x.0.1 }}

This probably makes your template harder to read, since it's not very clear what x.0.1 refers to in your context. You might consider changing the data structure of the results, and limiting the data your view returns to just the data your template is going to use.

EDIT 2

To make your template more readable, use a map function convert your list-of-lists back to a list-of-dicts:

emp3_list = [
    ["W/E 6/11/17", "Carter, Jon", 40.0],
    ["W/E 6/18/17", "Carter, Jon", 40.0],
    ["W/E 6/11/17", "Linn, Kenneth", 27.0],
    ["W/E 6/18/17", "Linn, Kenneth", 27.0],
    ["W/E 6/11/17", "Massey, Smiley", 55.0],
    ["W/E 6/18/17", "Massey, Smiley", 45.0]
]
emp3 = map(lambda x: {'date': x[0], 'employee_name': x[1], 'planned_hours': x[2]}, emp3_list)

Your template would then look like this:

{% for x in emp3 %}
    Employee: {{ x.employee_name }}
    Date: {{ x.date }}
    Planned Hours: {{ x.planned_hours }}
{% endfor %}