a lot of changes
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xoliqberdiyev
153
core/apps/documents/views/contract.py
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153
core/apps/documents/views/contract.py
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"""
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PDF generatsiya view — JSON yuborasiz, PDF olasiz.
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Yuborilmagan maydonlar uchun bo'sh string ('') qaytariladi —
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shunda templateda {{ ... }} qoldiqlari ko'rinmaydi.
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"""
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import json
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from django.http import HttpResponse, JsonResponse
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from django.template.loader import render_to_string
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from django.views.decorators.csrf import csrf_exempt
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from django.views.decorators.http import require_http_methods
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from weasyprint import HTML
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from rest_framework import permissions, views
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# Kompaniya defaultlari
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COMPANY_DEFAULTS = {
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'company_name': 'SIFAT BAHOLASH',
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'membership_number': '122',
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'membership_date': '01.06.2023',
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'phone_1': '(71) 278-85-85',
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'phone_2': '(91) 585-77-77',
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'phone_3': '(90) 535-99-99',
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'email': 'sifat.baholash@gmail.com',
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'bank_account': '2020 8 000 405 309 735 001',
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'bank_mfo': '00440',
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'inn': '307 930 412',
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'director_name': 'Тураев Т.Р.',
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'appraiser_name': 'Тураев Т.Р.',
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'appraiser_certificate': '0988',
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'appraiser_certificate_date': '17.11.2021',
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'insurance_policy': '19-01-25/0000368-2025',
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'insurance_start': '30.05.2025',
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'insurance_end': '29.05.2026',
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'market_name': 'Сергели автомобил бозори',
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'city': 'Ташкент',
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'year': '2026',
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'total_pages': 21,
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'valuation_purpose': 'для обеспечения залогом',
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'valuation_purpose_full': 'определение рыночной стоимости для обеспечения залогом',
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'adj_bargaining': '-9,00%',
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'adj_tech': '2,00%',
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'adj_equipment': '3,00%',
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'cost_weight': '20',
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'comp_weight': '80',
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}
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# Template ichida ishlatiladigan barcha maydonlar
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ALL_FIELDS = [
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'report_number', 'report_date', 'valuation_date',
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'customer_name', 'customer_short_name', 'customer_passport',
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'owner_name', 'owner_address',
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'vehicle_brand', 'vehicle_model', 'vehicle_plate',
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'vehicle_type', 'vehicle_year', 'vehicle_mileage',
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'vehicle_engine_number', 'vehicle_body_number', 'vehicle_chassis_number',
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'vehicle_color', 'vehicle_tech_passport',
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'spec_type', 'spec_seats', 'spec_length', 'spec_width', 'spec_height',
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'spec_wheelbase', 'spec_clearance',
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'engine_type', 'engine_volume', 'engine_cylinders',
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'engine_power', 'engine_torque', 'engine_max_speed',
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'engine_acceleration', 'transmission',
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'fuel_tank', 'trunk', 'curb_weight', 'gross_weight',
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'brakes_front', 'brakes_rear', 'tires',
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'cost_c0', 'cost_tf', 'cost_lf', 'cost_type_name',
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'cost_kt', 'cost_kl', 'cost_omega',
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'cost_wear_andrianov', 'cost_wear_expert', 'cost_wear_avg',
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'cost_func_wear', 'cost_total_wear', 'cost_capital',
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'cost_approach_value', 'cost_approach_value_words',
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'analog_1_source', 'analog_1_year', 'analog_1_mileage', 'analog_1_price',
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'analog_1_adj_1', 'analog_1_adj_2', 'analog_1_adj_3', 'analog_1_weight',
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'analog_2_source', 'analog_2_year', 'analog_2_mileage', 'analog_2_price',
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'analog_2_adj_1', 'analog_2_adj_2', 'analog_2_adj_3', 'analog_2_weight',
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'analog_3_source', 'analog_3_year', 'analog_3_mileage', 'analog_3_price',
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'analog_3_adj_1', 'analog_3_adj_2', 'analog_3_adj_3', 'analog_3_weight',
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'comp_total_usd', 'comp_total_sum', 'comp_total_words',
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'cost_specific', 'comp_specific', 'weighted_value',
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'market_value_number', 'market_value_words',
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'rate_rur', 'rate_usd', 'rate_eur',
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'exploitation_period', 'retail_price',
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]
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def _img_or_placeholder(image_url, placeholder_text, alt='', height='200mm'):
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"""Rasm URL bo'lsa <img>, bo'lmasa placeholder qaytaradi"""
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if image_url:
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return f'<img src="{image_url}" alt="{alt}" style="max-width:100%;max-height:{height};">'
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return (
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f'<div class="image-placeholder" style="height: {height};">'
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f'{placeholder_text}'
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f'</div>'
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)
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def build_context(data: dict) -> dict:
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"""Templatedagi barcha o'zgaruvchilar uchun qiymat tayyorlaydi"""
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# 1) Barcha maydonlarni bo'sh string bilan to'ldirish
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context = {field: '' for field in ALL_FIELDS}
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# 2) Kompaniya defaultlari
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context.update(COMPANY_DEFAULTS)
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# 3) Foydalanuvchi yuborgan ma'lumotlarni ustiga yozish
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context.update(data)
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# 4) Rasmlar uchun tayyor HTML
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context['cover_photo_html'] = _img_or_placeholder(
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data.get('vehicle_photo'),
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'[ Фото автомобиля ]',
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alt='Vehicle',
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height='50mm',
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)
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context['customer_passport_html'] = _img_or_placeholder(
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data.get('customer_passport_image'),
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'[ Изображение паспорта заказчика ]',
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alt='Паспорт заказчика',
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)
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context['tech_passport_html'] = _img_or_placeholder(
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data.get('tech_passport_image'),
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'[ Изображение технического паспорта ]',
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alt='Технический паспорт',
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)
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context['price_list_html'] = _img_or_placeholder(
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data.get('price_list_image'),
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'[ Прайс-лист завода-изготовителя ]',
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alt='Прайс-лист',
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)
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# 5) Loop maydonlar
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if not context.get('analog_screenshots'):
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context['analog_screenshots'] = [
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{'page_num': 18, 'image': None},
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{'page_num': 19, 'image': None},
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{'page_num': 20, 'image': None},
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]
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if not context.get('vehicle_photos'):
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context['vehicle_photos'] = []
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return context
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class GenerateApiView(views.APIView):
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def post(self, request):
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try:
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html_string = render_to_string('report_template.html', context)
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pdf_bytes = HTML(string=html_string).write_pdf()
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except Exception as e:
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return JsonResponse({'error': f'PDF yaratishda xato: {str(e)}'}, status=500)
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filename = f'otchet_1.pdf'
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response = HttpResponse(pdf_bytes, content_type='application/pdf')
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response['Content-Disposition'] = f'attachment; filename="{filename}"'
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return response
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