[ improvement ] [ Bulk Actions ] Export CSV

[atwellpub]

Our current CSV export system will break when trying to export an amount of leads over 800+, depending on server settings.

Example of a Lead export.

http://screencast.com/t/H76uYbbLN

goals

• Break processing into batches of X. ( in the final version x will be 500 but for testing it should just be set to 5 )
• Use ajax to process and save/update file into /uploads/leads/csv/ folder.
• Shows progress in UI
• After processing is finished it prompts a download location with a message letting the user know a this file is also available in wp-content/uploads/leads/csv/

Important code locations

Where we are currently processing and generating CSV:
https://github.com/inboundnow/leads/blob/develop/classes/class.lead-management.php#L798-L869

Where appropriate JS should go
https://github.com/inboundnow/leads/blob/develop/assets/js/management/admin.js

Where Ajax Processing should go
https://github.com/inboundnow/leads/blob/develop/classes/class.lead-management.php#L54

Further instructions

• Please develop in 'develop' branch.
• Please create 10 dummy leads for testing.

Optimistic time for completion:
8-15 hours.

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