The Snapshot processor takes the value from an existing item, and appends it to another place. This is primarily intended for taking snapshots of dynamic or calculated data (like a stock quote, or the number of bugs), and placing them in a table block to be used to chart results over time.

The source can be any item reference in the wiki. For example: page = SomePageName section = SomePageName#section_name block = SomePageName:BlockName record = SomePageName:TableBlockName:record_id field = SomePageName:TableBlockName:record_id::field_name block_field = SomePageName:TableBlockName:::field_name

Data is stripped before saving it to the destination.

Processor arguments are:

• source={source} - the location to get the data from
• evaluate=True - indicates the content should be evaluated prior to inclusion
  • this means processing any table formulas, tbwiki processors and macros
• destination={destination} - the place to append the data to
• format = a format string for the data. It should have named format variables. You should always have a variable named 'content'. For example:
  • %(content)s = the content from the source
  • %(timestamp)s = the time when the snapshot was taken
  • %(user)s = the user name of the person referencing the page

Example usage:

{{{#!Snapshot
source=FinancePage:GoogleStockQuoteBlock
destination=FinancePage:GoogleData
format="""
||%(timestamp)s||%(content)s||"""
}} }

---

{{{#!Snapshot
source=Uptime-Page#Status_section
evaluate
destination=Uptime-Page:UptimeTable
format="""
||%(timestamp)s||%(content)s||"""
}} }

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