This plugin lets you edit the custom fields for many posts at once. Designed to work with pages, posts, and all custom post types.
This plugin will run into memory problems and not submit properly if there are too many posts on a page. Currently the page limit is set at 200. To show more or less on a page, just add "posts_per_page=10" to the querystring to display only 10 posts. Use the querystring page_number=X to display a certain page.
Just enter the name and leave the value blank.
Yup, just go to the settings page and you can turn post types on and off.
Yes. Just check the "Add New Custom Fields Instead of Updating" checkbox when saving.
Yes. Search for a date range by entering a search query with ".." between the dates. So if you wanted to search for all dates between 2014-01-01 and 2014-02-01 you would search for "2014-01-01..2014-02-01". Or search for "2014-01-01.." to search for all orders between 2014-01-01 and the current date. Or search from the beginning of time until 2010-01-01 by searching "..2010-01-01".
You can add your own metabox to enter special data or you can just add some rows before the built-in custom field rows. Then add a special "saving" function which is run automatically on each post being changed.
Sample Code For Adding Your Own Extra Save Lines (see screenshots for how this looks)
To see a complete integration example, download the FoxyShop plugin and look in the
Single Value Mode lets you set a single value for all checked postes. Multi Value Mode lets you set a different custom field and value for each post at once. Action hooks are not run in Multi Value mode.
Yes. Click the link "Want to change a custom field name?" at the bottom of the Single Value Mode form and you'll be able to enter the original field name and the new field name.