PrestaShop 1.7无法添加产品求助：含图片上传、分类显示等异常

Hey there, let's work through these PrestaShop 1.7 problems step by step—they often tie into JavaScript conflicts, cache glitches, or permission issues. Here's how to fix each one:

1. Uploading Product Images is Blocked #

First, let's rule out the most common culprits:

• Check Folder Permissions: Make sure the /img/ and /img/products/ directories have the right permissions. Set folders to 755 and files to 644 (you can do this via FTP or your hosting control panel). PrestaShop needs write access here to save uploaded images.
• Verify JavaScript Functionality: Open your browser's DevTools (press F12), go to the Console tab, and refresh the product page. If you see red error messages, that's a sign of broken JS—likely from a conflicting theme or third-party module. Try switching to the default Classic theme and disabling all non-core modules, then test the upload again.
• Check Image Settings: Head to your PrestaShop backend > Preferences > Images. Ensure the maximum upload file size isn't too small, and that allowed formats (JPG, PNG, etc.) are enabled.

2. Deleted Old Categories Still Appear #

Stale category displays almost always come down to cached data. Try these fixes:

• Clear PrestaShop Cache: Click the "Clear Cache" button at the top of your backend dashboard. You can also manually delete files in the var/cache/ directory (leave index.php intact).
• Regenerate SEO URLs: Go to Preferences > SEO & URLs and click "Generate new URLs". This forces PrestaShop to update its URL mapping for categories.
• Database Cleanup (Advanced): If cache clearing doesn't work, double-check the database. Use phpMyAdmin to look at the ps_category table—ensure the deleted category is actually removed. If not, run this query (replace [CATEGORY_ID] with the ID of the stale category, and back up your database first!):

  DELETE FROM ps_category WHERE id_category = [CATEGORY_ID];
  

3. TTC Price Doesn't Auto-Generate After Entering Base Price #

Since you suspect JavaScript is disabled, let's confirm and fix that:

• Check for JS Errors: Again, use DevTools' Console tab to look for failed JS loads or syntax errors. Common issues include outdated theme JS, CDN caching old files, or modules overriding core price-calculation scripts.
• Validate Price & Tax Settings: In the backend, go to Preferences > Products and ensure "Display prices with tax" is enabled. Then check Localization > Taxes to confirm your tax rules are correctly configured for your region.
• Refresh Core JS Files: If core PrestaShop JS is corrupted, re-upload the /admin/themes/default/js/ directory from a fresh PrestaShop 1.7 installation (match your exact version). Alternatively, apply the latest patch for your PrestaShop version to fix any known JS bugs.
• Browser-Side Fixes: Try a different browser, or do a hard refresh (Ctrl+Shift+R) to clear your local browser cache—sometimes old cached JS files prevent the price calculator from running.

Quick Tip #

If all three issues persist, the root cause is likely a conflicting third-party module or custom theme. Disable modules one by one and test each feature to pinpoint the culprit.

内容的提问来源于stack exchange，提问作者Fadel D