Help viewing calibre gui data via commandline

jackie_w · 10-25-2012, 11:58 AM

I am trying to get a better understanding of the calibre library data available when creating a typical user interface plugin. Please could someone get me started.

As an example, some simple code I already have in a working plugin is this:

Code:

db = self.gui.library_view.model().db
book_authors = db.authors(book_id, index_is_id=True)

where book_id is a known value.

If I want to create that gui db object in a commandline session (either interactive or in a script.py file) so I can poke around a little (viewing only) what do I need to do?

I've seen the calibre-debug -e myscript.py option in the user manual but I'm not sure how to access the gui data.

Secondly, if the above is possible I would also like to look around the available data when a device is connected (self.gui.device_manager.connected_device when used in a plugin).

In case it's relevant, I don't have any development environment - just my trusty text editor (Notepad++)

kovidgoyal · 10-25-2012, 01:04 PM

calibre-debug -c "from calibre.library import db; db = db(); Do whatever with the db object"

For device access, you can directly instaantiate the device plugin, like this

calibre-debug -c "from calibre.customize.builtins import PRS505; device = PRS505(None)"

jackie_w · 10-25-2012, 01:59 PM

Many thanks, I'll have a play

jackie_w · 10-25-2012, 08:26 PM

After some playing around I'm OK with the 'db' part of your reply but not the 'device' part. I understand, using your example, that I can do things like

Code:

device=PRS505(None)
print(device.EBOOK_DIR_MAIN)

to view some variables, but if I want to be able to examine other device data available whilst the device is actually connected to my PC, what extra do I need to do?
e.g within a plugin, if I wanted to know what drive the device was connected as I would use

Code:

root_path = self.gui.device_manager.connected_device._main_prefix

what extras would I need to import to be able to access this data via the commandline?

kovidgoyal · 10-25-2012, 11:24 PM

Call device.open((1,1,1,'','',''), 'test') then calibre will connect to the device and you will be able to interrogate the device.

jackie_w · 10-26-2012, 09:53 AM

Thank you, that works. The fog is lifting...

10-25-2012, 11:58 AM	#1
jackie_w Grand Sorcerer Posts: 6,251 Karma: 16539642 Join Date: Sep 2009 Location: UK Device: ClaraHD, Forma, Libra2, Clara2E, LibraCol, PBTouchHD3	Help viewing calibre gui data via commandline I am trying to get a better understanding of the calibre library data available when creating a typical user interface plugin. Please could someone get me started. As an example, some simple code I already have in a working plugin is this: Code: db = self.gui.library_view.model().db book_authors = db.authors(book_id, index_is_id=True) where book_id is a known value. If I want to create that gui db object in a commandline session (either interactive or in a script.py file) so I can poke around a little (viewing only) what do I need to do? I've seen the calibre-debug -e myscript.py option in the user manual but I'm not sure how to access the gui data. Secondly, if the above is possible I would also like to look around the available data when a device is connected (self.gui.device_manager.connected_device when used in a plugin). In case it's relevant, I don't have any development environment - just my trusty text editor (Notepad++)

10-25-2012, 08:26 PM	#4
jackie_w Grand Sorcerer Posts: 6,251 Karma: 16539642 Join Date: Sep 2009 Location: UK Device: ClaraHD, Forma, Libra2, Clara2E, LibraCol, PBTouchHD3	After some playing around I'm OK with the 'db' part of your reply but not the 'device' part. I understand, using your example, that I can do things like Code: device=PRS505(None) print(device.EBOOK_DIR_MAIN) to view some variables, but if I want to be able to examine other device data available whilst the device is actually connected to my PC, what extra do I need to do? e.g within a plugin, if I wanted to know what drive the device was connected as I would use Code: root_path = self.gui.device_manager.connected_device._main_prefix what extras would I need to import to be able to access this data via the commandline?

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10-25-2012, 01:04 PM	#2
kovidgoyal creator of calibre Posts: 45,318 Karma: 27111242 Join Date: Oct 2006 Location: Mumbai, India Device: Various	calibre-debug -c "from calibre.library import db; db = db(); Do whatever with the db object" For device access, you can directly instaantiate the device plugin, like this calibre-debug -c "from calibre.customize.builtins import PRS505; device = PRS505(None)"

10-25-2012, 01:59 PM	#3
jackie_w Grand Sorcerer Posts: 6,251 Karma: 16539642 Join Date: Sep 2009 Location: UK Device: ClaraHD, Forma, Libra2, Clara2E, LibraCol, PBTouchHD3	Many thanks, I'll have a play

10-25-2012, 11:24 PM	#5
kovidgoyal creator of calibre Posts: 45,318 Karma: 27111242 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Call device.open((1,1,1,'','',''), 'test') then calibre will connect to the device and you will be able to interrogate the device.

10-26-2012, 09:53 AM	#6
jackie_w Grand Sorcerer Posts: 6,251 Karma: 16539642 Join Date: Sep 2009 Location: UK Device: ClaraHD, Forma, Libra2, Clara2E, LibraCol, PBTouchHD3	Thank you, that works. The fog is lifting...

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