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serializers.py
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serializers.py
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from collections import OrderedDict
import datetime
import six
from django.contrib.auth import get_user_model
from django.shortcuts import get_object_or_404
from django.utils import timezone
from rest_framework import serializers
from rest_framework.utils import model_meta
from bulbs.content.models import Content, FeatureType
from bulbs.content.serializers import FeatureTypeField, UserSerializer
from .models import (
Contribution, ContributorRole, ContributionOverride, HourlyRate, FlatRate, ManualRate,
FeatureTypeRate, FeatureTypeOverride, LineItem, OverrideProfile, Rate,
RATE_PAYMENT_TYPES, MANUAL
)
class PaymentTypeField(serializers.Field):
"""
payment type objects serialized to/from label/identifer
"""
def to_representation(self, obj):
data = dict(RATE_PAYMENT_TYPES)[obj]
return data
def to_internal_value(self, data):
if isinstance(data, int):
return data
return dict((label, value) for value, label in RATE_PAYMENT_TYPES)[data]
class ContributorSerializer(serializers.ModelSerializer):
full_name = serializers.SerializerMethodField()
class Meta:
model = get_user_model()
fields = ("id", "first_name", "last_name", "full_name")
def get_full_name(self, contributor):
if hasattr(contributor, "get_full_name"):
return contributor.get_full_name()
elif hasattr(contributor, "full_name"):
return contributor.full_name
else:
return contributor.first_name + " " + contributor.last_name
class ContributorField(serializers.Field):
def to_representation(self, obj):
return ContributorSerializer(obj).data
def to_internal_value(self, data):
contributor_cls = get_user_model()
if isinstance(data, six.text_type) and data.isdigit():
data = int(data)
if isinstance(data, int):
return contributor_cls.objects.get(id=data)
elif isinstance(data, dict):
id = data.get("id", None)
if id is not None:
return contributor_cls.objects.get(id=id)
return None
class FreelanceProfileSerializer(serializers.Serializer):
contributor = ContributorField()
payment_date = serializers.SerializerMethodField()
pay = serializers.SerializerMethodField()
contributions_count = serializers.SerializerMethodField("get_contribution_count")
def get_pay(self, obj):
return obj.get_pay()
def get_payment_date(self, obj):
now = timezone.now()
month = now.month + 1
year = now.year
if month > 12:
month = 1
year += 1
next_payment = datetime.datetime(
day=1,
month=month,
year=year,
tzinfo=now.tzinfo
)
return next_payment.isoformat()
def get_contribution_count(self, obj):
return obj.contributor.contributions.count()
class LineEntrySerializer(serializers.ModelSerializer):
contributor = ContributorField()
payment_date = serializers.DateTimeField()
class Meta:
model = LineItem
class RateSerializer(serializers.ModelSerializer):
name = PaymentTypeField()
class Meta:
model = Rate
class NestedRateSerializer(serializers.ModelSerializer):
"""
ModelSerializer that lookups the user role from the url kwargs.
"""
def create(self, validated_data):
lookup_kwargs = self.context["request"].parser_context["kwargs"]
role_pk = lookup_kwargs.get("role_pk", 0)
validated_data["role"] = get_object_or_404(ContributorRole, pk=role_pk)
return super(NestedRateSerializer, self).create(validated_data)
class FlatRateSerializer(NestedRateSerializer):
class Meta:
model = FlatRate
fields = ("id", "rate")
class HourlyRateSerializer(NestedRateSerializer):
class Meta:
model = HourlyRate
fields = ("id", "rate")
class FeatureTypeRateSerializer(NestedRateSerializer):
feature_type = FeatureTypeField(queryset=FeatureType.objects.all())
class Meta:
model = FeatureTypeRate
fields = ("id", "rate", "feature_type")
class RateField(serializers.Field):
"""
Returns the appropriate rate to represent
Creates a new rate
"""
def get_attribute(self, obj):
return obj.get_rate()
def to_representation(self, obj):
return RateSerializer(obj).data
def to_internal_value(self, data):
name = data.get('name', None)
if name:
data['name'] = dict((label, value) for value, label in RATE_PAYMENT_TYPES)[name]
if 'role' in data:
rate = FlatRate(**data)
elif 'contribution' in data:
data["name"] = MANUAL
rate = ManualRate(**data)
elif 'feature_type' in data:
rate = FeatureTypeRate(**data)
else:
rate = Rate(**data)
rate.save()
return rate
class OverrideRateField(serializers.Field):
def get_attribute(self, obj):
return obj.override_flatrate.first()
def to_representation(self, obj):
return obj.rate
class OverrideFeatureTypesField(serializers.Field):
def get_attribute(self, obj):
return obj.override_feature_type.all()
def to_representation(self, obj):
marshaller = []
for rate in obj:
marshaller.append({
'feature_type': rate.feature_type.name,
'rate': rate.rate
})
return marshaller
class ContributorRoleSerializer(serializers.ModelSerializer):
payment_type = PaymentTypeField()
rate = serializers.SerializerMethodField()
class Meta:
model = ContributorRole
def get_rate(self, obj):
rate = obj.get_rate()
if rate:
return rate.rate
return None
class RoleField(serializers.Field):
def get_attribute(self, obj):
return (obj.role, obj)
def to_representation(self, obj):
obj, contribution = obj
data = {
"id": obj.id,
"name": obj.name,
"description": obj.description,
"payment_type": PaymentTypeField().to_representation(obj.payment_type)
}
if isinstance(contribution, Contribution):
rate = data.get("rate")
if not rate:
rate = contribution.get_rate()
if rate and hasattr(rate, "rate"):
data["rate"] = rate.rate
# TODO: Need to separate these rate requests to a different endpoint
content = getattr(contribution, 'content', None)
if content is not None:
data["rates"] = {}
# TODO: This is redundant, but we need to lower the feature_type query on partial.
flat_rate = FlatRate.objects.filter(role=obj).order_by("-updated_on").first()
if flat_rate:
data["rates"]["flat_rate"] = {
"rate": flat_rate.rate,
"updated_on": flat_rate.updated_on.isoformat()
}
hourly = HourlyRate.objects.filter(role=obj).order_by("-updated_on").first()
if hourly:
data["rates"]["hourly"] = {
"rate": hourly.rate,
"updated_on": hourly.updated_on.isoformat()
}
feature_type_rates = FeatureTypeRate.objects.filter(
role=obj, feature_type=content.feature_type
)
if feature_type_rates.exists():
ft = feature_type_rates.order_by("-updated_on")[0]
data["rates"]["feature_type"] = [{
"feature_type": ft.feature_type.name,
"rate": ft.rate,
"updated_on": ft.updated_on.isoformat()
}]
return data
def to_internal_value(self, data):
if isinstance(data, int):
return ContributorRole.objects.get(id=data)
elif isinstance(data, dict):
id = data.get("id", None)
return ContributorRole.objects.get(id=id)
return None
class FeatureTypeOverrideSerializer(serializers.ModelSerializer):
rate = serializers.IntegerField(required=False)
feature_type = FeatureTypeField(queryset=FeatureType.objects.all())
class Meta:
model = FeatureTypeOverride
class OverrideProfileSerializer(serializers.ModelSerializer):
contributor = ContributorField()
role = RoleField()
rate = OverrideRateField(read_only=True)
feature_types = OverrideFeatureTypesField(read_only=True)
class Meta:
model = OverrideProfile
def update_feature_type_overrides(self, profile, feature_types):
for data in feature_types:
ft_data = data.get('feature_type', None)
if ft_data:
feature_type = FeatureTypeField(read_only=True).to_internal_value(
ft_data
)
rate = int(data.get('rate', 0))
ft_override = profile.override_feature_type.get_or_create(
feature_type=feature_type,
)[0]
if ft_override.rate != rate:
ft_override.rate = rate
ft_override.save()
def to_internal_value(self, data):
rate = data.pop("rate", None)
feature_types = data.pop("feature_types", None)
override = super(OverrideProfileSerializer, self).to_internal_value(data)
if feature_types:
override['feature_types'] = feature_types
if rate:
override['rate'] = rate
return override
def create(self, validated_data):
rate = validated_data.pop('rate', None)
feature_types = validated_data.pop('feature_types', [])
profile = super(OverrideProfileSerializer, self).create(validated_data)
if rate or rate == 0:
profile.override_flatrate.create(rate=rate)
if feature_types:
self.update_feature_type_overrides(profile, feature_types)
return profile
def update(self, instance, validated_data):
rate = validated_data.pop('rate', None)
feature_types = validated_data.pop('feature_types', [])
profile = super(OverrideProfileSerializer, self).update(instance, validated_data)
if rate or rate == 0:
profile.override_flatrate.create(rate=rate)
if feature_types:
self.update_feature_type_overrides(profile, feature_types)
return profile
class ContributionListSerializer(serializers.ListSerializer):
contributor = UserSerializer()
def create(self, validated_data, **kwargs):
instance = self.instance or None
while not instance:
for obj in validated_data:
instance = obj.get('content')
return self.update(instance, validated_data)
def update(self, instance, validated_data):
# Maps for id->instance and id->data item.
contribution_mapping = {c.id: c for c in instance.contributions.all()}
data_mapping = {item['id']: item for item in validated_data if "id" in item}
# Perform creations and updates.
ret = []
for data in validated_data:
contribution = None
if "id" in data:
contribution = contribution_mapping.get(data["id"], None)
if contribution is None:
ret.append(self.child.create(data))
else:
ret.append(self.child.update(contribution, data))
# Perform deletions.
for contribution_id, contribution in contribution_mapping.items():
if contribution_id not in data_mapping:
contribution.delete()
return ret
class ContributionOverrideField(serializers.Field):
def get_attribute(self, obj):
return obj.override_contribution.first()
def to_representation(self, obj):
if obj:
return obj.rate
class ContributionSerializer(serializers.ModelSerializer):
contributor = UserSerializer()
rate = RateField(required=False)
role = RoleField()
override_rate = ContributionOverrideField(read_only=True)
content = serializers.PrimaryKeyRelatedField(queryset=Content.objects.all())
class Meta:
model = Contribution
list_serializer_class = ContributionListSerializer
def get_rate(self, obj):
rate = obj.get_rate()
if not rate:
return None
return RateSerializer(rate).data
def to_internal_value(self, data):
rate_data = data.pop('rate', None)
override_rate_data = data.pop("override_rate", None)
data = super(ContributionSerializer, self).to_internal_value(data)
if rate_data:
data['rate'] = rate_data
if override_rate_data:
data["override_rate"] = override_rate_data
return data
def create(self, validated_data):
model_cls = self.Meta.model
info = model_meta.get_field_info(model_cls)
many_to_many = {}
rate_data = validated_data.pop('rate', None)
override_rate_data = validated_data.pop("override_rate", None)
for field_name, relation_info in info.relations.items():
if relation_info.to_many and (field_name in validated_data):
many_to_many[field_name] = validated_data.pop(field_name)
contribution = model_cls.objects.create(**validated_data)
if rate_data:
if isinstance(rate_data, int):
rate_data = {"rate": rate_data}
if isinstance(rate_data, six.text_type) or isinstance(rate_data, str):
if rate_data.isdigit():
rate_data = {"rate": int(rate_data)}
rate_data["contribution"] = contribution
RateField().to_internal_value(rate_data)
if override_rate_data:
ContributionOverride.objects.create(
contribution=contribution,
rate=override_rate_data
)
return contribution
class ContributionReportingSerializer(serializers.ModelSerializer):
user = serializers.SerializerMethodField()
content = serializers.SerializerMethodField()
pay = serializers.SerializerMethodField()
role = serializers.SerializerMethodField()
rate = serializers.SerializerMethodField()
class Meta:
model = Contribution
fields = ("id", "content", "user", "pay", "role", "rate", "notes")
def get_content(self, obj):
return OrderedDict([
("id", obj.content.id),
("title", obj.content.title),
("url", obj.content.get_absolute_url()),
("content_type", obj.content.__class__.__name__),
("feature_type", getattr(obj.content.feature_type, "name", None)),
("published", timezone.localtime(obj.content.published))
])
def get_user(self, obj):
full_name = obj.contributor.get_full_name()
data = {
"id": obj.contributor.id,
"username": obj.contributor.username,
"full_name": full_name,
"payroll_name": full_name
}
profile = getattr(obj.contributor, "freelanceprofile", None)
if profile:
payroll_name = getattr(profile, "payroll_name")
if payroll_name:
data["payroll_name"] = payroll_name
return data
def get_role(self, obj):
return obj.role.name
def get_pay(self, obj):
return obj.get_pay
def get_rate(self, obj):
rate = obj.get_rate()
if isinstance(rate, HourlyRate):
minutes_worked = getattr(obj, 'minutes_worked', 0)
return rate.rate * minutes_worked
if rate and hasattr(rate, "rate"):
return rate.rate
return None
class ContributorRoleField(serializers.Field):
"""This is fucking stupid, but it's basically a field that returns the the
names of people who have contributed to this content under a certain role."""
def __init__(self, role, *args, **kwargs):
super(ContributorRoleField, self).__init__(*args, **kwargs)
self.role = role
self.source = "*"
def to_representation(self, obj):
qs = Contribution.objects.filter(content=obj, role=self.role).select_related("contributor")
return ",".join([contribution.contributor.get_full_name() for contribution in qs])
class ContentReportingSerializer(serializers.ModelSerializer):
content_type = serializers.SerializerMethodField()
published = serializers.SerializerMethodField()
feature_type = serializers.SerializerMethodField()
url = serializers.URLField(source="get_absolute_url")
value = serializers.SerializerMethodField('get_content_value')
authors = serializers.SerializerMethodField()
video_id = serializers.SerializerMethodField()
class Meta:
model = Content
fields = (
"id", "title", "url", "content_type", "feature_type", "published", "authors",
"video_id", "value"
)
def get_content_value(self, obj):
try:
contributions = obj.contributions.distinct()
except:
contributions = obj.contributions.instances
request = self.context.get("request")
# mparent(2016-06-23): Commented-out due to "unused variables", but Cam wants to keep this
# around for future fixes.
# now = timezone.now()
# start_date = datetime.datetime(
# year=now.year,
# month=now.month,
# day=1,
# tzinfo=now.tzinfo
# )
# if "start" in request.QUERY_PARAMS:
# start_date = dateparse.parse_date(request.QUERY_PARAMS["start"])
# end_date = now
# if "end" in request.GET:
# end_date = dateparse.parse_date(request.QUERY_PARAMS["end"])
if "contributors" in request.QUERY_PARAMS:
contributors = request.QUERY_PARAMS.getlist("contributors")
contributions = contributions.filter(contributor__username__in=contributors)
# contributions = contributions.filter(
# force_payment=False
# ) | contributions.filter(
# payment_date__range=(start_date, end_date)
# )
total_cost = 0
for contribution in contributions:
cost = contribution.get_pay
if cost:
total_cost += cost
return total_cost
def get_content_type(self, obj):
return obj.__class__.__name__
def get_feature_type(self, obj):
return getattr(obj.feature_type, "name", None)
def get_video_id(self, obj):
if hasattr(obj, 'videohub_ref'):
return getattr(obj.videohub_ref, 'id')
elif hasattr(obj, 'video'):
return getattr(obj.video, 'id')
return None
def get_published(self, obj):
return timezone.localtime(obj.published)
def get_authors(self, obj):
return ",".join([author.get_full_name() for author in obj.authors.all()])
class ContributorReportSerializer(serializers.Serializer):
deadline = serializers.DateTimeField()
start = serializers.DateTimeField()