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FROM python:3.7-alpine
MAINTAINER London App Developer Ltd.

ENV PYTHONUNBUFFERED 1

# Install dependencies
COPY requirements.txt ./
RUN pip install -r requirements.txt

# Setup directory structure

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# How to display only interesting fields for a Django Rest Framework API
# /?fields=field1,field2,field3

from rest_framework import serializers, pagination

class DynamicFieldsModelSerializer(serializers.ModelSerializer):
    """
    A ModelSerializer that takes an additional `fields` argument that
    controls which fields should be displayed.

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sudo mkdir /var/www/www.example.com
sudo nano /etc/apache2/sites-available/www.example.com.conf

<VirtualHost *:80>
ServerName www.example.com
DocumentRoot /var/www/www.example.com
<Directory /var/www/www.example.com>
AllowOverride All
</Directory>
</VirtualHost>

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<VirtualHost *:80>
    ServerName xyz.example.com
    ServerAdmin admin@example.com
    ErrorLog /var/www/web.example.com/error.log
    CustomLog /var/www/web.example.com/access.log combined
    Alias /static /var/www/web.example.com/static
    <Directory /var/www/web.example.com/static>
        Require all granted
    </Directory>
    <Directory /var/www/web.example.com/example>

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def get_nearest_cities(lat, lng, in_radius):
    earth_radius = 6371
    cities = Location.objects.filter().annotate(
        distance=earth_radius * ACos(Cos(Radians(lat)) * Cos(Radians("latitude")) * Cos(
            Radians("longitude") - Radians(lng)) + Sin(Radians(lat)) * Sin(
            Radians('latitude')))).filter(distance__lt=in_radius).order_by("distance")
    return cities

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class JSONViewMixin(object):
    def json_response(self, data, status=200):
        return JSONResponse(self.request, data, status=status)


class DataTableView(JSONViewMixin, View):
    def get(self, request, *args, **kwargs):
        params = request.GET
        sort_col_num = params.get('iSortCol_0', 0)

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label
  input#test-checkbox type="checkbox"
  |Test checkbox

table#test-table

javascript:
  $(document).ready(function() {
    var table = $("#test-table").dataTable( {
      "ajaxSource": '#{test_datatable_path}',

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export const CommonMixin = {
    data() {
        return {
            dialog: false,
            snackbar: {
                show: false,
                message: null,
                color: null
            },
            search: "",

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requiredRule: [v => !!v || "This Field is required."],

if (this.$refs.accountForm.validate()) {

}

<v-form ref="accountForm">
<v-text-field
                      v-model="account.father_name"
                      label="Father Name"

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ALTER TABLE `table_name` CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;