drought/graphic/views.py

import datetime
from urllib.parse import unquote

import httplib2
from django.db.models import Count
from django.http import JsonResponse, HttpResponse, HttpResponseNotAllowed
from django.shortcuts import render

# Create your views here.
from dashboard.models import Spi, Hydro, Revenue, Landuse, Population, GDP

PROXY_FORMAT = 'http://%s:%d%s' % ('210.77.68.250', 8080, '%s')


def index(request):
    return render(request, 'graphic/index.html')


def timeline(request):
    return render(request, 'graphic/timeline.html')


def timeline1(request):
    return render(request, 'graphic/timeline1.html')


def timeline2(request):
    return render(request, 'graphic/timeline2.html')


def timeline3(request):
    return render(request, 'graphic/timeline3.html')





def proxy(request):
    conn = httplib2.Http()

    if request.method == 'GET':
        url = request.GET.urlencode()
        url = url.replace('url=', '')
        url = unquote(url)
        response, content = conn.request(url, request.method)
        return HttpResponse(content, status=int(response['status']), content_type=response['content-type'])
    else:
        return HttpResponseNotAllowed('post')


def spi(request):
    spi = dict()
    spi['type'] = 'FeatureCollection'
    spi['crs'] = {
        'type': 'link',
        'properties': {
            'href': 'http://spatialreference.org/ref/epsg/4326/',
            'type': 'proj4'
        }
    }

    spis = Spi.objects.all()
    fs = []
    for s in spis:
        epoch = datetime.datetime.utcfromtimestamp(0)
        t = datetime.datetime(s.year, s.month, 1, 1, 1, 1)
        start = t.timestamp() * 1000.0
        o = {
            'id': s.id,
            'type': 'Feature',
            'properties': {
                'code': s.code,
                'time': int(start),
                'mean_precipitation': float(s.mean_precipitation)
            },
            'geometry': {
                'type': 'Point',
                'coordinates': [s.longitude, s.latitude]
            }
        }
        fs.append(o)
    spi['features'] = fs
    return JsonResponse(spi)




def spi_chart_code(request):
    code = request.GET.get('code', 'V7001')
    year_from = request.GET.get('year_from', '1979')
    year_to = request.GET.get('year_to', '1989')
    codes = Spi.objects.only('code').values('code').annotate(total=Count('code')).order_by('code')
    years = range(1979, 2018)
    months = range(1, 13)
    spis = Spi.objects.filter(code=code, year__range=(year_from, year_to))
    return render(request, 'graphic/spi_chart_code.html',
                  {'codes': codes, 'years': years, 'months': months, 'spis': spis, 'code': code, 'year_from': year_from,
                   'year_to': year_to, })


def spi_chart_time(request):
    year = request.GET.get('year', '1979')
    month = request.GET.get('month', '1')
    years = range(1979, 2018)
    months = range(1, 13)
    spis = Spi.objects.filter(year=year, month=month)
    return render(request, 'graphic/spi_chart_time.html',
                  {'years': years, 'months': months, 'spis': spis, 'year': year,
                   'month': month})

def spi_chart_time_list(request):
    code = request.GET.get('code', 'V7001')
    year_from = request.GET.get('year_from', '1979')
    year_to = request.GET.get('year_to', '1989')
    codes = Spi.objects.only('code').values('code').annotate(total=Count('code')).order_by('code')
    years = range(1979, 2018)
    months = range(1, 13)
    spis = Spi.objects.filter(code=code, year__range=(year_from, year_to))
    return render(request, 'dashboard/spi_list.html',
                  {'codes': codes, 'years': years, 'months': months, 'spis': spis, 'code': code, 'year_from': year_from,
                   'year_to': year_to, })


def hydro_chart_time_list(request):
    year = request.GET.get('date', '1979')
    years = range(1979, 2018)
    hydro = Hydro.objects.filter(date=year)
    print(str(hydro)+"+++++++++++++++++")
    return render(request, 'dashboard/hydro_list.html',
                  {'years': years, 'hydro': hydro, 'year': year,
                  })


def revenue_chart_time_list(request):
    year = request.GET.get('date', '1979')
    years = range(1979, 2018)
    revenue = Revenue.objects.filter(data=year)
    print(str(revenue)+"社会经济")
    return render(request, 'dashboard/revenue_list.html',
                  {'years': years, 'revenue': revenue, 'year': year,
                  })

def landuse_chart_time_list(request):
    year = request.GET.get('date','2016')
    years = range(1979,2018)
    landuse = Landuse.objects.filter(date = year)
    return render(request,'dashboard/landuse_list.html',{'years':years,'year':year,'landuse':landuse})

def population_chart_time_list(request):
    year = request.GET.get('date','2016')
    years = range(1979,2018)
    population = Population.objects.filter(date = year)
    return render(request,'dashboard/population_list.html',{'years':years,'year':year,'population':population})

def gdp_chart_time_list(request):
    year = request.GET.get('date','2016')
    years = range(2016,2018)
    gdp = GDP.objects.filter(date = year)
    return render(request,'dashboard/gdp_list.html',{'years':years,'year':year,'gdp':gdp})