Files
whyrating-engine-legacy/test_user_selector.py
Alejandro Gutiérrez faa0704737 Optimize scraper performance and add fallback selectors for robustness
Performance improvements:
- Validation speed: 59.71s → 10.96s (5.5x improvement)
- Removed 50+ console.log statements from JavaScript extraction
- Replaced hardcoded sleeps with WebDriverWait for smart element-based waiting
- Added aggressive memory management (console.clear, GC, image unloading every 20 scrolls)

Scraping improvements:
- Increased idle detection from 6 to 12 consecutive idle scrolls for completeness
- Added real-time progress updates every 5 scrolls with percentage calculation
- Added crash recovery to extract partial reviews if Chrome crashes
- Removed artificial 200-review limit to scrape ALL reviews

Timestamp tracking:
- Added updated_at field separate from started_at for progress tracking
- Frontend now shows both "Started" (fixed) and "Last Update" (dynamic)

Robustness improvements:
- Added 5 fallback CSS selectors to handle different Google Maps page structures
- Now tries: div.jftiEf.fontBodyMedium, div.jftiEf, div[data-review-id], etc.
- Automatic selector detection logs which selector works for debugging

Test results:
- Successfully scraped 550 reviews in 150.53s without crashes
- Memory management prevents Chrome tab crashes during heavy scraping

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-01-18 19:49:24 +00:00

126 lines
3.7 KiB
Python

#!/usr/bin/env python3
"""
Test the CSS selector provided by the user to find review count.
"""
import time
from seleniumbase import Driver
from selenium.webdriver.common.by import By
driver = Driver(uc=True, headless=True)
url = 'https://www.google.com/maps/search/?api=1&query=instinto+las+palmas&hl=en'
print(f'Testing with user-provided CSS selector...\n')
driver.get(url)
time.sleep(2)
# Handle GDPR
if 'consent.google.com' in driver.current_url:
form_btns = driver.find_elements(By.CSS_SELECTOR, 'form button')
for btn in form_btns:
if 'accept all' in (btn.text or '').lower():
btn.click()
time.sleep(2)
break
# Wait for auto-navigation and page load
time.sleep(6)
print(f'Current URL: {driver.current_url[:100]}...\n')
# Test the exact selector provided by user
selector = 'body > div:nth-child(5) > div.lbMcOd.y2iKwd.eZfyae.cSgCkb.xcUKcd.y2Sqzf.Nkjr6c.K1N2o > div.UL7Qtf > div.g2LZJb > div > div > div.w6VYqd > div:nth-child(2) > div > div.e07Vkf.kA9KIf > div > div > div.TIHn2 > div > div.lMbq3e > div.LBgpqf > div > div.fontBodyMedium.dmRWX > div.tos0Ie > div'
result = driver.execute_script('''
const selector = arguments[0];
const elem = document.querySelector(selector);
if (elem) {
return {
found: true,
text: elem.textContent || '',
innerHTML: elem.innerHTML || '',
parent: elem.parentElement ? elem.parentElement.textContent : ''
};
} else {
return {
found: false,
text: null
};
}
''', selector)
print('='*80)
print('RESULT FROM USER SELECTOR:')
print('='*80)
print(f"Found: {result['found']}")
if result['found']:
print(f"Text: {result['text']}")
print(f"HTML: {result['innerHTML'][:200]}")
print(f"Parent text: {result['parent'][:200]}")
else:
print('❌ Element NOT found with that exact selector')
# Try simpler selectors based on the classes
print('\n' + '='*80)
print('TESTING SIMPLER SELECTORS (key classes from user selector):')
print('='*80)
# Test various class combinations
selectors_to_test = [
'div.fontBodyMedium.dmRWX',
'div.tos0Ie',
'div.LBgpqf',
'div.lMbq3e',
]
for test_selector in selectors_to_test:
elements = driver.execute_script('''
const selector = arguments[0];
const elements = document.querySelectorAll(selector);
const results = [];
for (let elem of elements) {
const text = (elem.textContent || '').trim();
if (text.length > 0 && text.length < 150) {
results.push(text);
}
}
return results.slice(0, 5); // First 5 matches
''', test_selector)
print(f'\nSelector: {test_selector}')
print(f'Found {len(elements)} element(s):')
for i, text in enumerate(elements, 1):
print(f' {i}. {text[:100]}')
# Also look for any element containing "review" in these specific class contexts
print('\n' + '='*80)
print('SEARCHING FOR REVIEW COUNT IN SIMILAR LOCATIONS:')
print('='*80)
review_search = driver.execute_script('''
const results = [];
// Look for elements with classes that might contain review info
const candidates = document.querySelectorAll('div.fontBodyMedium, div[class*="dmRWX"], div[class*="tos0Ie"]');
for (let elem of candidates) {
const text = (elem.textContent || '').trim();
if (text.length > 0 && text.length < 200 && /review|reseña/i.test(text)) {
results.push({
text: text,
classes: elem.className
});
}
}
return results.slice(0, 10);
''')
for i, item in enumerate(review_search, 1):
print(f"\n{i}. Classes: {item['classes'][:80]}")
print(f" Text: {item['text'][:100]}")
driver.quit()