Templates: various questions not worth their own thread

[hanjisung]

Hi!

1) Is there a way to set a rule (much like the column colorization) such as 'if series column is blank' 'check series complete column to 'true''?

2) Very long shot, but just in case, is there some sort of key for the column colorization? Even upon hover? For example, my series column is set to 3 different colors. One for if series is complete, one for if it is not, and one for undefined. It would be nice if I hover over the series title, the rule applied to it would appear. Such as 'wolfgang [5] : 'true/false/null'. But better yet, I would love something like a Key with squares below the tool bar/above the search bar that showed the colors you've put in your rules, and text either below, or on hover, which says which rule it represents. You guys probably just remember what your colors mean, but I have goldfish brain.

[ownedbycats]

program:

	if 
		$series==''
## alternately, !$series also works
	then
		'true'
	fi

Assuming you're using standard boolean clumn. Action Chains can edit non-composite columns based on template (Single-Field Edit). Ask assistance in that thread if needed.

[chaley]

Originally Posted by hanjisung

Hi!

1) Is there a way to set a rule (much like the column colorization) such as 'if series column is blank' 'check series complete column to 'true''?

To expand on @ownedbycats solution, there is no way for a coloring template to change the value of a field. The only fields that can change value dynamically are "columns built from other columns" (often referred to as "composite columns"). Action chains can change the value of a column based on the value of some other column. Personally, I would use a composite for this.

2) Very long shot, but just in case, is there some sort of key for the column colorization? Even upon hover? For example, my series column is set to 3 different colors. One for if series is complete, one for if it is not, and one for undefined. It would be nice if I hover over the series title, the rule applied to it would appear. Such as 'wolfgang [5] : 'true/false/null'. But better yet, I would love something like a Key with squares below the tool bar/above the search bar that showed the colors you've put in your rules, and text either below, or on hover, which says which rule it represents. You guys probably just remember what your colors mean, but I have goldfish brain.

There is no way to change the tooltip (the "hover" text) for a column.

However,, you can use a composite to do something close: show some explanatory text in another (composite) column. Create the composite column and have the template return whatever you want based on the content of the "source" column. Place the composite column next to the source column then make it very narrow. The tooltip for the composite will show your explanatory text without taking a lot of screen space.

[hanjisung]

Originally Posted by ownedbycats

program:

	if 
		$series==''
## alternately, !$series also works
	then
		'true'
	fi

Assuming you're using standard boolean clumn. Action Chains can edit non-composite columns based on template (Single-Field Edit). Ask assistance in that thread if needed.

"In computer science, the Boolean (sometimes shortened to Bool) is a data type that has one of two possible values (usually denoted true and false) which is intended to represent the two truth values of logic and Boolean algebra." - source

I gather you're asking if the column I want to reference is Yes/No type, and I'm correct, yes

Thank you for your response and direction to a plugin which may offer more functionality!

May I ask where the code you provided goes? I'm not familiar with this...

[chaley]

Originally Posted by hanjisung

May I ask where the code you provided goes? I'm not familiar with this...

It is the template for a composite column, as discussed in my post just above yours.

Edit: apparently you saw my previous post so this one is superfluous. I'll leave it for anyone who comes later.

[chaley]

Originally Posted by hanjisung

2) Very long shot, but just in case, is there some sort of key for the column colorization? Even upon hover? For example, my series column is set to 3 different colors. One for if series is complete, one for if it is not, and one for undefined. It would be nice if I hover over the series title, the rule applied to it would appear. Such as 'wolfgang [5] : 'true/false/null'. But better yet, I would love something like a Key with squares below the tool bar/above the search bar that showed the colors you've put in your rules, and text either below, or on hover, which says which rule it represents. You guys probably just remember what your colors mean, but I have goldfish brain.

Originally Posted by chaley

There is no way to change the tooltip (the "hover" text) for a column.

After some reflection I decided to implement "custom tooltips" for columns in the book list using templates. The tooltip can contain whatever you want as long as it can be generated by a template. Tooltips interpret HTML so you can construct complex displays. One test I did was to include in the tooltip the note for the value where the note contained a picture.

To define a column tooltip, right-click on the column header and choose "(Define|Edit) column tooltip ..."

You can include the text that would have been used for the tooltip. See the help text when you first create a column tooltip template:

Notes:

• The template global variable "column_lookup_name" contains the column lookup name.
• The global variable "original_text" contains the original tooltip text.

This feature is in calibre source now and will be included in the next preview or release.

[hanjisung]

Originally Posted by chaley

After some reflection I decided to implement "custom tooltips" for columns in the book list using templates. The tooltip can contain whatever you want as long as it can be generated by a template. Tooltips interpret HTML so you can construct complex displays. One test I did was to include in the tooltip the note for the value where the note contained a picture.

To define a column tooltip, right-click on the column header and choose "(Define|Edit) column tooltip ..."

You can include the text that would have been used for the tooltip. See the help text when you first create a column tooltip template:

This feature is in calibre source now and will be included in the next preview or release.

Thanks Chaley!