external links to images ; two questions

whitespirit · 01-26-2021, 04:55 PM

1. Is it possible to view external links to images in the GUI calibre database interface if the field is HTML based ? Now I only can view these links if a make a catalog and download the external links/images with the epub tools (example : <div><p align="center">Issue 3</p></div><p align="center"> <img src="https://stripwinkeldickbos.nl/pub/media/catalog/product/cache/f073062f50e48eb0f0998593e568d857/z/w/zwendel_3_1.jpg" title ="03 - Lady Z" width="145" height="190"> <hr></div>
2. A second option would be to download the external image to a local path and convert the link from external to internal. I have > 5000 links to covers and sometimes external links are broken or removed creating empty spaces in my view
Thank you to advice how this could be done but I couldn't find directly any solution describing my needs

kovidgoyal · 01-26-2021, 09:27 PM

No it isn't. that would mean unacceptable and highly variable latencies simply showing things in th einterface.

whitespirit · 01-27-2021, 01:02 AM

thank you Kovid - and option 2 ? This should reduce the risk if all is local and the option exists with the insert link or image, but can this change (external->internal) be automated , like in the epub edit book tools (download external link) ?

kovidgoyal · 01-27-2021, 01:09 AM

There is an insert link or image button for comment type columns in the metadata editor. See what it does and if you want to automate it, use calibredb to write a script to update the comments accordingly.

whitespirit · 02-26-2021, 07:54 AM

In html field in calibre user interface the following link shows perfect
<img src="file:///X:/Calibre%20Portable/Calibre%20Settings/covers/cover.jpg"

In edit books tools (calibre, version 5.12.0) when using download external links in catalog epub that has been generated by calibre following error is given :
WARNING: Some downloads failed: Failed to download some external resources, click "Show Details" for more information.
file:///X:/Calibre Portable/Calibre Settings/covers/cover.jpg
[Errno 22] Invalid argument: '/X:/Calibre Portable/Calibre Settings/covers/cover.jpg'

Can you tell me what I can do to embed the cover.jpg into the epub ? Do I have to do something about the syntax or should I move my cover.jpg file to another location ?

thanks

kovidgoyal · 02-26-2021, 10:18 AM

That's just the download external links tool not working with file:// urls on windows, edit the url to remove one slash before X: and it should be fine.

whitespirit · 02-26-2021, 10:54 AM

Thanks - Did so (removed one slash) and a) lost the image view in the interface and b) now get another error.

calibre, version 5.12.0
ERROR: Download failed: Failed to download external resources, click "Show Details" for more information.

file://X:/Calibre%20Portable/Calibre%20Settings/covers/cover.jpg
[Errno 2] No such file or directory: '/Calibre%20Portable/Calibre%20Settings/covers/cover.jpg'

any other advice or possibility ?

kovidgoyal · 02-26-2021, 12:13 PM

If you are in the editor anyway simply import the image into the book using the editors native import functionality.

01-26-2021, 04:55 PM	#1
whitespirit Member Posts: 20 Karma: 10 Join Date: Jan 2009 Device: pocketbook PB741	external links to images ; two questions 1. Is it possible to view external links to images in the GUI calibre database interface if the field is HTML based ? Now I only can view these links if a make a catalog and download the external links/images with the epub tools (example : <div><p align="center">Issue 3</p></div><p align="center"> <img src="https://stripwinkeldickbos.nl/pub/media/catalog/product/cache/f073062f50e48eb0f0998593e568d857/z/w/zwendel_3_1.jpg" title ="03 - Lady Z" width="145" height="190"> <hr></div> 2. A second option would be to download the external image to a local path and convert the link from external to internal. I have > 5000 links to covers and sometimes external links are broken or removed creating empty spaces in my view Thank you to advice how this could be done but I couldn't find directly any solution describing my needs

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01-26-2021, 09:27 PM	#2
kovidgoyal creator of calibre Posts: 43,965 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	No it isn't. that would mean unacceptable and highly variable latencies simply showing things in th einterface.

01-27-2021, 01:02 AM	#3
whitespirit Member Posts: 20 Karma: 10 Join Date: Jan 2009 Device: pocketbook PB741	thank you Kovid - and option 2 ? This should reduce the risk if all is local and the option exists with the insert link or image, but can this change (external->internal) be automated , like in the epub edit book tools (download external link) ?

01-27-2021, 01:09 AM	#4
kovidgoyal creator of calibre Posts: 43,965 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There is an insert link or image button for comment type columns in the metadata editor. See what it does and if you want to automate it, use calibredb to write a script to update the comments accordingly.

02-26-2021, 07:54 AM	#5
whitespirit Member Posts: 20 Karma: 10 Join Date: Jan 2009 Device: pocketbook PB741	In html field in calibre user interface the following link shows perfect <img src="file:///X:/Calibre%20Portable/Calibre%20Settings/covers/cover.jpg" In edit books tools (calibre, version 5.12.0) when using download external links in catalog epub that has been generated by calibre following error is given : WARNING: Some downloads failed: Failed to download some external resources, click "Show Details" for more information. file:///X:/Calibre Portable/Calibre Settings/covers/cover.jpg [Errno 22] Invalid argument: '/X:/Calibre Portable/Calibre Settings/covers/cover.jpg' Can you tell me what I can do to embed the cover.jpg into the epub ? Do I have to do something about the syntax or should I move my cover.jpg file to another location ? thanks

02-26-2021, 10:18 AM	#6
kovidgoyal creator of calibre Posts: 43,965 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That's just the download external links tool not working with file:// urls on windows, edit the url to remove one slash before X: and it should be fine.

02-26-2021, 10:54 AM	#7
whitespirit Member Posts: 20 Karma: 10 Join Date: Jan 2009 Device: pocketbook PB741	Thanks - Did so (removed one slash) and a) lost the image view in the interface and b) now get another error. calibre, version 5.12.0 ERROR: Download failed: Failed to download external resources, click "Show Details" for more information. file://X:/Calibre%20Portable/Calibre%20Settings/covers/cover.jpg [Errno 2] No such file or directory: '/Calibre%20Portable/Calibre%20Settings/covers/cover.jpg' any other advice or possibility ?

02-26-2021, 12:13 PM	#8
kovidgoyal creator of calibre Posts: 43,965 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	If you are in the editor anyway simply import the image into the book using the editors native import functionality.

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