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Contents
module SportDb
module Model
class MatchCursor
def initialize( matches )
@matches = matches
end
def each
state = MatchCursorState.new
@matches.each do |match|
state.next( match )
yield( match, state ) # e.g. lets you use state.new_date? or state.new_week? or state.new_year? etc.
end
end # method each
end # class MatchCursor
class MatchCursorState
def initialize
@last_date = DateTime.new( 1971, 1, 1 )
@new_date = true
@new_year = true
@new_week = true
@index = -1 # zero-based index; thus start off with -1 (e.g. -1+=1 => 0)
end
attr_reader :index
def new_date?() @new_date; end
def new_year?() @new_year; end
def new_week?() @new_week; end
## add new league ?
## add new round ?
## add new time ?
def next( match )
@index += 1 # zero-based index; start off with -1 (undefined/uninitialized)
match_date = match.date # cache date value ref
if @last_date.year == match_date.year &&
@last_date.month == match_date.month &&
@last_date.day == match_date.day
@new_date = false
else
@new_date = true
# check for new_year
if @last_date.year == match_date.year
@new_year = false
else
@new_year = true
end
# check for new_week
# -- todo: find a method for week number; do NOT use strftime; there must be something easier
# -- check if activesupport adds .week or similar ??? use it if it exists
if @last_date.strftime('%V') == match_date.strftime('%V')
@new_week = false
else
@new_week = true
end
end
@last_date = match.date
end # method next
end # class MatchCursorState
end # module Model
end # module SportDb
Version data entries
5 entries across 5 versions & 1 rubygems