Class: Shiftzilla::Source

Inherits:
Object
  • Object
show all
Defined in:
lib/shiftzilla/source.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(qid, qinfo) ⇒ Source

Returns a new instance of Source.



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# File 'lib/shiftzilla/source.rb', line 6

def initialize(qid,qinfo)
  @id           = qid.to_sym
  @search       = qinfo['search']
  @sharer       = qinfo['sharer']
  @table        = qinfo['table']
  @external_sub = qinfo['external_sub']
  @fields       = qinfo['fields'].map{ |f| f.to_sym }
  @external_bugs_idx = @fields.index(:external_bugs)
end

Instance Attribute Details

#id ⇒ Object (readonly)

Returns the value of attribute id.



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# File 'lib/shiftzilla/source.rb', line 5

def id
  @id
end

#table ⇒ Object (readonly)

Returns the value of attribute table.



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# File 'lib/shiftzilla/source.rb', line 5

def table
  @table
end

Instance Method Details

#has_records_for_today? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/shiftzilla/source.rb', line 16

def has_records_for_today?
  count = 0
  dbh.execute("SELECT count(*) FROM #{@table} WHERE Snapshot = date('now')") do |row|
    count = row[0].to_i
  end
  return count > 0
end

#load_records(options) ⇒ Object 



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# File 'lib/shiftzilla/source.rb', line 24

def load_records(options)
  output_format = @fields.map{ |fld| "%{#{fld.to_s}}" }.join("\x1F")
  table_fields  = @fields.map{ |fld| "\"#{field_map[fld]}\"" }.join(',')
  insert_frame  = @fields.map{ |fld| '?' }.join(', ')
  bz_command    = "bugzilla query --savedsearch #{@search} --savedsearch-sharer-id=#{@sharer} --outputformat='#{output_format}'"
  bz_csv        = `#{bz_command}`
  row_count     = 0
  retrieved     = []
  bz_csv.split("\n").each do |row|
    values = row.split("\x1F")
    if not @external_bugs_idx.nil?
      if not @external_sub.nil? and values[@external_bugs_idx].include?(@external_sub)
        values[@external_bugs_idx] = 1
      else
        values[@external_bugs_idx] = 0
      end
    end
    retrieved << values
    row_count += 1
  end
  puts "Retrieved #{retrieved.length} rows"
  if options[:purge] and retrieved.length > 0
    # We know we have new data, so it is okay to nuke the old data
    puts "Purging old records"
    purge_records
  end
  puts "Loading new records"
  retrieved.each do |values|
    dbh.execute("INSERT INTO #{@table} (#{table_fields}) VALUES (#{insert_frame})", values)
  end
  dbh.execute("UPDATE #{@table} SET Snapshot = date('now') WHERE Snapshot ISNULL")
  return row_count
end

#purge_records ⇒ Object 



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# File 'lib/shiftzilla/source.rb', line 58

def purge_records
  dbh.execute("DELETE FROM #{@table} WHERE Snapshot == date('now') OR Snapshot ISNULL")
end