[mythtv-commits] Ticket #6478: Add update timestamp to program table for incremental program data retrieval

[MythTV]

#6478: Add update timestamp to program table for incremental program data
retrieval
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 Reporter:  chasedouglas at gmail.com     |       Owner:  stuartm
     Type:  patch                      |      Status:  new    
 Priority:  minor                      |   Milestone:  0.22   
Component:  MythTV - Mythfilldatabase  |     Version:  head   
 Severity:  medium                     |     Mlocked:  0      
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 As a developer of !MyMote, I would like to be able to download incremental
 sets of program data each time !MyMote is opened. The attached patch
 implements this update capability.

 It does a number of things:
  1. Adds a timestamp column to the program table
  2. Modifies ProgramData::clearDataByChannel() to leave the program table
 as-is by default
  3. Modifies mythfilldatabase so it updates the first and last flags only
 when the resultant value is different than the current value
  4. Modifies the DataDirectProcessor::!DataDirectProgramUpdate() so that
 it:
   a. Removes program entries that do not match any of the new data direct
 entries
   b. Removes new data direct entries that match any of the old program
 entries
   c. Inserts what is left of the new data direct entries into the program
 table

 I have tested this with schedules direct and have not found any issues. I
 believe that other forms of program table changes are done through updates
 and not through wipe and reinsert like !DataDirectProcessor does. Thus,
 this should be all the changes necessary.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/6478>
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