Class: SportDb::EventTableReader

Inherits:
Object
  • Object
show all
Includes:
LogUtils::Logging, Model
Defined in:
lib/sportdb/readers/event_table.rb

Constant Summary collapse

EVENT_HEADER_REGEX =

split into league + season

e.g. Österr. Bundesliga 2015/16        
     World Cup 2018

/^
         (?<league>.+?)     ## non-greedy
\s
         (?<season>\d{4}
(?:\/\d{2})?     ## optional 2nd date in season
         )
$/x

Constants included from Model

Model::City, Model::Continent, Model::Country, Model::Person, Model::Prop, Model::State

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(text, more_attribs = {}) ⇒ EventTableReader

Returns a new instance of EventTableReader.



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# File 'lib/sportdb/readers/event_table.rb', line 39

def initialize( text, more_attribs={} )
  ## todo/fix: how to add opts={} ???
  @text = text
  @more_attribs = more_attribs

  @event    = nil
end

Instance Attribute Details

#event ⇒ Object (readonly)

returns event record; call read first



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# File 'lib/sportdb/readers/event_table.rb', line 14

def event
  @event
end

Class Method Details

.from_file(path, more_attribs = {}) ⇒ Object 



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# File 'lib/sportdb/readers/event_table.rb', line 27

def self.from_file( path, more_attribs={} )
  ## note: assume/enfore utf-8 encoding (with or without BOM - byte order mark)
  ## - see textutils/utils.rb
  text = File.read_utf8( path )
      
  self.from_string( text, more_attribs )
end

.from_string(text, more_attribs = {}) ⇒ Object 



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# File 'lib/sportdb/readers/event_table.rb', line 35

def self.from_string( text, more_attribs={} )
  self.new( text, more_attribs )
end

.from_zip(zip_file, entry_path, more_attribs = {}) ⇒ Object 



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# File 'lib/sportdb/readers/event_table.rb', line 17

def self.from_zip( zip_file, entry_path, more_attribs={} )
  ## get text content from zip
  entry = zip_file.find_entry( entry_path )

  text = entry.get_input_stream().read()
  text = text.force_encoding( Encoding::UTF_8 )

  self.from_string( text, more_attribs )
end

Instance Method Details

#read ⇒ Object 



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# File 'lib/sportdb/readers/event_table.rb', line 59

def read
  @event    = nil   # reset cached event rec
  event_attribs={}

  reader = LineReader.from_string( @text )

  header = false
  season = nil
  league = nil

  reader.each_line do |line|
    puts "  line: >#{line}<"
    
    ## assume first line is event header (league+season)
    ##  e.g. Österr. Bundesliga 2015/16        
    ##       World Cup 2018
    if header == false       
       line = line.strip
       m = EVENT_HEADER_REGEX.match( line )
       if m
         league_title = m[:league]
         season_key   = m[:season]
         puts "  trying event lookup - league: >#{league_title}<, season: >#{season_key}<"
         
         season = Season.find_by( key: season_key )

         ## check if it exists
         if season.present?
           event_attribs['season_id'] = season.id
         else
           logger.error "season with key >>#{season_key}<< missing"
           exit 1
         end
 
         league = League.find_by( title: league_title )

         ## check if it exists
         if league.present?    ## todo: just use if league  (no present?) ???
           event_attribs['league_id'] = league.id
         else
           logger.error "league with title >>#{league_title}<< missing"
           exit 1
         end
       else
         fail "[EventTableReader] event header must match league+season pattern: >#{line}<"
       end
       header = true
    else
      ### process regular team lines

      line = line.strip
      scan = StringScanner.new( line )
      
      if scan.check( /-/ )               # option 1) list entry  e.g.  - Rapid Wien
        puts "  list entry >#{line}<"
        scan.skip( /-\s+/)
        team_title = scan.rest.strip      ## assume the rest is the team name
      elsif scan.check( /\d{1,2}\./ )    ## option 2) table entry  e.g.   1. Rapid Wien
        puts "  table entry >#{line}<"
        rank = scan.scan( /\d{1,2}/ )
        scan.skip( /\.\s+/)
        
        ## note: uses look ahead scan until we hit at least two spaces
        ##  or the end of string  (standing records for now optional)
        team_title = scan.scan_until( /(?=\s{2})|$/ )
        if scan.eos?
          standing = nil
        else
          scan.skip( /\s+/ )
          standing = scan.rest
        end
        puts "   rank: >#{rank}<, standing: >#{standing}<"          
      else 
         fail "[EventTableReader] event line must match team pattern: >#{line}<"
      end

      puts "  team: >#{team_title}<"

      team = Team.find_by( title: team_title )
      ## next try synonyms (if not found/no match)
      team = Team.where( "synonyms LIKE ?", "%#{team_title}%" ).first    if team.nil?
      

      if team.nil?
        ### print better error message than just
        ##  *** error: Couldn't find SportDb::Model::Team
        puts "[fatal] event reader - record for team title >#{team_title}< not found"
        exit 1
        ### fix/todo: throw exception/error
      end

      team_ids = event_attribs['team_ids'] || []
      team_ids << team.id
      event_attribs['team_ids'] = team_ids        
    end
  end  # each_line

  pp event_attribs


  league_id = event_attribs['league_id']
  season_id = event_attribs['season_id']

  logger.debug "find event - league_id: #{league_id}, season_id: #{season_id}"

  event = Event.find_by( league_id: league_id,
                         season_id: season_id )

  ## check if it exists
  if event.present?
    logger.debug "*** update event #{event.id}-#{event.key}:"
  else
    logger.debug "*** create event:"
    event = Event.new
    
    ## hack:  fix/todo1!!
    ##   add "fake" start_at date for now      
    if season.key.size == '4'   ## e.g. assume 2018 etc.
      year = season.key.to_i
      start_at = Date.new( year, 1, 1 )         
    else  ## assume 2014/15 etc.
      year = season.key[0..3].to_i
      start_at = Date.new( year, 7, 1 )
    end
    event_attribs['start_at'] = start_at
  end
  
  logger.debug event_attribs.to_json

  event.update_attributes!( event_attribs )
  
  # keep a cached reference for later use
  @event = event
end