Class: Leaderboard
- Inherits:
-
Object
- Object
- Leaderboard
- Defined in:
- lib/leaderboard.rb,
lib/leaderboard/version.rb
Constant Summary collapse
- DEFAULT_PAGE_SIZE =
Default page size: 25
25
- DEFAULT_OPTIONS =
Default options when creating a leaderboard. Page size is 25 and reverse is set to false, meaning various methods will return results in highest-to-lowest order.
{ :page_size => DEFAULT_PAGE_SIZE, :reverse => false }
- DEFAULT_REDIS_HOST =
Default Redis host: localhost
'localhost'
- DEFAULT_REDIS_PORT =
Default Redis post: 6379
6379
- DEFAULT_REDIS_OPTIONS =
Default Redis options when creating a connection to Redis. The
DEFAULT_REDIS_HOST
andDEFAULT_REDIS_PORT
will be passed. { :host => DEFAULT_REDIS_HOST, :port => DEFAULT_REDIS_PORT }
- DEFAULT_LEADERBOARD_REQUEST_OPTIONS =
Default options when requesting data from a leaderboard.
:with_scores
true: Return scores along with the member names.:with_rank
true: Return ranks along with the member names.:with_member_data
false: Return member data along with the member names.:use_zero_index_for_rank
false: If you want to 0-index ranks.:page_size
nil: The default page size will be used. { :with_scores => true, :with_rank => true, :with_member_data => false, :use_zero_index_for_rank => false, :page_size => nil }
- VERSION =
Leaderboard version
'2.2.1'.freeze
Instance Attribute Summary collapse
-
#leaderboard_name ⇒ Object
readonly
Name of the leaderboard.
-
#page_size ⇒ Object
Page size to be used when paging through the leaderboard.
-
#reverse ⇒ Object
Determines whether or not various leaderboard methods return their data in highest-to-lowest (
:reverse
false) or lowest-to-highest (:reverse
true).
Instance Method Summary collapse
-
#around_me(member, options = {}) ⇒ Object
Retrieve a page of leaders from the leaderboard around a given member.
-
#around_me_in(leaderboard_name, member, options = {}) ⇒ Object
Retrieve a page of leaders from the named leaderboard around a given member.
-
#change_score_for(member, delta) ⇒ Object
Change the score for a member in the leaderboard by a score delta which can be positive or negative.
-
#change_score_for_member_in(leaderboard_name, member, delta) ⇒ Object
Change the score for a member in the named leaderboard by a delta which can be positive or negative.
-
#check_member?(member) ⇒ Boolean
Check to see if a member exists in the leaderboard.
-
#check_member_in?(leaderboard_name, member) ⇒ Boolean
Check to see if a member exists in the named leaderboard.
-
#delete_leaderboard ⇒ Object
Delete the current leaderboard.
-
#delete_leaderboard_named(leaderboard_name) ⇒ Object
Delete the named leaderboard.
-
#disconnect ⇒ Object
Disconnect the Redis connection.
-
#initialize(leaderboard_name, options = DEFAULT_OPTIONS, redis_options = DEFAULT_REDIS_OPTIONS) ⇒ Leaderboard
constructor
Create a new instance of a leaderboard.
-
#intersect_leaderboards(destination, keys, options = {:aggregate => :sum}) ⇒ Object
Intersect leaderboards given by keys with this leaderboard into a named destination leaderboard.
-
#leaders(current_page, options = {}) ⇒ Object
(also: #members)
Retrieve a page of leaders from the leaderboard.
-
#leaders_in(leaderboard_name, current_page, options = {}) ⇒ Object
(also: #members_in)
Retrieve a page of leaders from the named leaderboard.
-
#member_at(position, options = {}) ⇒ Object
Retrieve a member at the specified index from the leaderboard.
-
#member_at_in(leaderboard_name, position, options = {}) ⇒ Object
Retrieve a member at the specified index from the leaderboard.
-
#member_data_for(member) ⇒ Object
Retrieve the optional member data for a given member in the leaderboard.
-
#member_data_for_in(leaderboard_name, member) ⇒ Object
Retrieve the optional member data for a given member in the named leaderboard.
-
#members_from_score_range(minimum_score, maximum_score, options = {}) ⇒ Object
Retrieve members from the leaderboard within a given score range.
-
#members_from_score_range_in(leaderboard_name, minimum_score, maximum_score, options = {}) ⇒ Object
Retrieve members from the named leaderboard within a given score range.
-
#merge_leaderboards(destination, keys, options = {:aggregate => :sum}) ⇒ Object
Merge leaderboards given by keys with this leaderboard into a named destination leaderboard.
-
#page_for(member, page_size = DEFAULT_PAGE_SIZE) ⇒ Object
Determine the page where a member falls in the leaderboard.
-
#page_for_in(leaderboard_name, member, page_size = DEFAULT_PAGE_SIZE) ⇒ Object
Determine the page where a member falls in the named leaderboard.
-
#percentile_for(member) ⇒ Object
Retrieve the percentile for a member in the leaderboard.
-
#percentile_for_in(leaderboard_name, member) ⇒ Object
Retrieve the percentile for a member in the named leaderboard.
-
#rank_for(member, use_zero_index_for_rank = false) ⇒ Object
Retrieve the rank for a member in the leaderboard.
-
#rank_for_in(leaderboard_name, member, use_zero_index_for_rank = false) ⇒ Object
Retrieve the rank for a member in the named leaderboard.
-
#rank_member(member, score, member_data = nil) ⇒ Object
Rank a member in the leaderboard.
-
#rank_member_in(leaderboard_name, member, score, member_data) ⇒ Object
Rank a member in the named leaderboard.
-
#rank_members(*members_and_scores) ⇒ Object
Rank an array of members in the leaderboard.
-
#rank_members_in(leaderboard_name, *members_and_scores) ⇒ Object
Rank an array of members in the named leaderboard.
-
#ranked_in_list(members, options = {}) ⇒ Object
Retrieve a page of leaders from the leaderboard for a given list of members.
-
#ranked_in_list_in(leaderboard_name, members, options = {}) ⇒ Object
Retrieve a page of leaders from the named leaderboard for a given list of members.
-
#remove_member(member) ⇒ Object
Remove a member from the leaderboard.
-
#remove_member_data(member) ⇒ Object
Remove the optional member data for a given member in the leaderboard.
-
#remove_member_data_in(leaderboard_name, member) ⇒ Object
Remove the optional member data for a given member in the named leaderboard.
-
#remove_member_from(leaderboard_name, member) ⇒ Object
Remove a member from the named leaderboard.
-
#remove_members_in_score_range(min_score, max_score) ⇒ Object
Remove members from the leaderboard in a given score range.
-
#remove_members_in_score_range_in(leaderboard_name, min_score, max_score) ⇒ Object
Remove members from the named leaderboard in a given score range.
-
#score_and_rank_for(member, use_zero_index_for_rank = false) ⇒ Object
Retrieve the score and rank for a member in the leaderboard.
-
#score_and_rank_for_in(leaderboard_name, member, use_zero_index_for_rank = false) ⇒ Object
Retrieve the score and rank for a member in the named leaderboard.
-
#score_for(member) ⇒ Object
Retrieve the score for a member in the leaderboard.
-
#score_for_in(leaderboard_name, member) ⇒ Object
Retrieve the score for a member in the named leaderboard.
-
#total_members ⇒ Object
Retrieve the total number of members in the leaderboard.
-
#total_members_in(leaderboard_name) ⇒ Object
Retrieve the total number of members in the named leaderboard.
-
#total_members_in_score_range(min_score, max_score) ⇒ Object
Retrieve the total members in a given score range from the leaderboard.
-
#total_members_in_score_range_in(leaderboard_name, min_score, max_score) ⇒ Object
Retrieve the total members in a given score range from the named leaderboard.
-
#total_pages ⇒ Object
Retrieve the total number of pages in the leaderboard.
-
#total_pages_in(leaderboard_name, page_size = nil) ⇒ Object
Retrieve the total number of pages in the named leaderboard.
-
#update_member_data(member, member_data) ⇒ Object
Update the optional member data for a given member in the leaderboard.
-
#update_member_data_in(leaderboard_name, member, member_data) ⇒ Object
Update the optional member data for a given member in the named leaderboard.
Constructor Details
#initialize(leaderboard_name, options = DEFAULT_OPTIONS, redis_options = DEFAULT_REDIS_OPTIONS) ⇒ Leaderboard
Create a new instance of a leaderboard.
Examples
leaderboard = Leaderboard.new('highscores')
leaderboard = Leaderboard.new('highscores', {:page_size => 10})
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# File 'lib/leaderboard.rb', line 64 def initialize(leaderboard_name, = DEFAULT_OPTIONS, = DEFAULT_REDIS_OPTIONS) @leaderboard_name = leaderboard_name @reverse = [:reverse] @page_size = [:page_size] if @page_size.nil? || @page_size < 1 @page_size = DEFAULT_PAGE_SIZE end @redis_connection = [:redis_connection] unless @redis_connection.nil? .delete(:redis_connection) end @redis_connection = Redis.new() if @redis_connection.nil? end |
Instance Attribute Details
#leaderboard_name ⇒ Object (readonly)
Name of the leaderboard.
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# File 'lib/leaderboard.rb', line 44 def leaderboard_name @leaderboard_name end |
#page_size ⇒ Object
Page size to be used when paging through the leaderboard.
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# File 'lib/leaderboard.rb', line 47 def page_size @page_size end |
#reverse ⇒ Object
Determines whether or not various leaderboard methods return their data in highest-to-lowest (:reverse
false) or lowest-to-highest (:reverse
true)
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# File 'lib/leaderboard.rb', line 52 def reverse @reverse end |
Instance Method Details
#around_me(member, options = {}) ⇒ Object
Retrieve a page of leaders from the leaderboard around a given member.
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# File 'lib/leaderboard.rb', line 609 def around_me(member, = {}) around_me_in(@leaderboard_name, member, ) end |
#around_me_in(leaderboard_name, member, options = {}) ⇒ Object
Retrieve a page of leaders from the named leaderboard around a given member.
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# File 'lib/leaderboard.rb', line 620 def around_me_in(leaderboard_name, member, = {}) = DEFAULT_LEADERBOARD_REQUEST_OPTIONS.dup .merge!() reverse_rank_for_member = @reverse ? @redis_connection.zrank(leaderboard_name, member) : @redis_connection.zrevrank(leaderboard_name, member) return [] unless reverse_rank_for_member page_size = validate_page_size([:page_size]) || @page_size starting_offset = reverse_rank_for_member - (page_size / 2) if starting_offset < 0 starting_offset = 0 end ending_offset = (starting_offset + page_size) - 1 raw_leader_data = @reverse ? @redis_connection.zrange(leaderboard_name, starting_offset, ending_offset, :with_scores => false) : @redis_connection.zrevrange(leaderboard_name, starting_offset, ending_offset, :with_scores => false) if raw_leader_data return ranked_in_list_in(leaderboard_name, raw_leader_data, ) else return [] end end |
#change_score_for(member, delta) ⇒ Object
Change the score for a member in the leaderboard by a score delta which can be positive or negative.
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# File 'lib/leaderboard.rb', line 284 def change_score_for(member, delta) change_score_for_member_in(@leaderboard_name, member, delta) end |
#change_score_for_member_in(leaderboard_name, member, delta) ⇒ Object
Change the score for a member in the named leaderboard by a delta which can be positive or negative.
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# File 'lib/leaderboard.rb', line 293 def change_score_for_member_in(leaderboard_name, member, delta) @redis_connection.zincrby(leaderboard_name, delta, member) end |
#check_member?(member) ⇒ Boolean
Check to see if a member exists in the leaderboard.
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# File 'lib/leaderboard.rb', line 354 def check_member?(member) check_member_in?(@leaderboard_name, member) end |
#check_member_in?(leaderboard_name, member) ⇒ Boolean
Check to see if a member exists in the named leaderboard.
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# File 'lib/leaderboard.rb', line 364 def check_member_in?(leaderboard_name, member) !@redis_connection.zscore(leaderboard_name, member).nil? end |
#delete_leaderboard ⇒ Object
Delete the current leaderboard.
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# File 'lib/leaderboard.rb', line 98 def delete_leaderboard delete_leaderboard_named(@leaderboard_name) end |
#delete_leaderboard_named(leaderboard_name) ⇒ Object
Delete the named leaderboard.
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# File 'lib/leaderboard.rb', line 105 def delete_leaderboard_named(leaderboard_name) @redis_connection.del(leaderboard_name) end |
#disconnect ⇒ Object
Disconnect the Redis connection.
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# File 'lib/leaderboard.rb', line 93 def disconnect @redis_connection.client.disconnect end |
#intersect_leaderboards(destination, keys, options = {:aggregate => :sum}) ⇒ Object
Intersect leaderboards given by keys with this leaderboard into a named destination leaderboard.
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# File 'lib/leaderboard.rb', line 733 def intersect_leaderboards(destination, keys, = {:aggregate => :sum}) @redis_connection.zinterstore(destination, keys.insert(0, @leaderboard_name), ) end |
#leaders(current_page, options = {}) ⇒ Object Also known as: members
Retrieve a page of leaders from the leaderboard.
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# File 'lib/leaderboard.rb', line 488 def leaders(current_page, = {}) leaders_in(@leaderboard_name, current_page, ) end |
#leaders_in(leaderboard_name, current_page, options = {}) ⇒ Object Also known as: members_in
Retrieve a page of leaders from the named leaderboard.
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# File 'lib/leaderboard.rb', line 501 def leaders_in(leaderboard_name, current_page, = {}) = DEFAULT_LEADERBOARD_REQUEST_OPTIONS.dup .merge!() if current_page < 1 current_page = 1 end page_size = validate_page_size([:page_size]) || @page_size if current_page > total_pages_in(leaderboard_name, page_size) current_page = total_pages_in(leaderboard_name, page_size) end index_for_redis = current_page - 1 starting_offset = (index_for_redis * page_size) if starting_offset < 0 starting_offset = 0 end ending_offset = (starting_offset + page_size) - 1 if @reverse raw_leader_data = @redis_connection.zrange(leaderboard_name, starting_offset, ending_offset, :with_scores => false) else raw_leader_data = @redis_connection.zrevrange(leaderboard_name, starting_offset, ending_offset, :with_scores => false) end if raw_leader_data return ranked_in_list_in(leaderboard_name, raw_leader_data, ) else return [] end end |
#member_at(position, options = {}) ⇒ Object
Retrieve a member at the specified index from the leaderboard.
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# File 'lib/leaderboard.rb', line 579 def member_at(position, = {}) member_at_in(@leaderboard_name, position, ) end |
#member_at_in(leaderboard_name, position, options = {}) ⇒ Object
Retrieve a member at the specified index from the leaderboard.
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# File 'lib/leaderboard.rb', line 590 def member_at_in(leaderboard_name, position, = {}) if position <= total_members_in(leaderboard_name) = DEFAULT_LEADERBOARD_REQUEST_OPTIONS.dup .merge!() page_size = validate_page_size([:page_size]) || @page_size current_page = (position.to_f / page_size.to_f).ceil offset = (position - 1) % page_size leaders = leaders_in(leaderboard_name, current_page, ) leaders[offset] if leaders end end |
#member_data_for(member) ⇒ Object
Retrieve the optional member data for a given member in the leaderboard.
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# File 'lib/leaderboard.rb', line 138 def member_data_for(member) member_data_for_in(@leaderboard_name, member) end |
#member_data_for_in(leaderboard_name, member) ⇒ Object
Retrieve the optional member data for a given member in the named leaderboard.
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# File 'lib/leaderboard.rb', line 148 def member_data_for_in(leaderboard_name, member) @redis_connection.hgetall(member_data_key(leaderboard_name, member)) end |
#members_from_score_range(minimum_score, maximum_score, options = {}) ⇒ Object
Retrieve members from the leaderboard within a given score range.
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# File 'lib/leaderboard.rb', line 546 def members_from_score_range(minimum_score, maximum_score, = {}) members_from_score_range_in(@leaderboard_name, minimum_score, maximum_score, ) end |
#members_from_score_range_in(leaderboard_name, minimum_score, maximum_score, options = {}) ⇒ Object
Retrieve members from the named leaderboard within a given score range.
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# File 'lib/leaderboard.rb', line 558 def members_from_score_range_in(leaderboard_name, minimum_score, maximum_score, = {}) = DEFAULT_LEADERBOARD_REQUEST_OPTIONS.dup .merge!() raw_leader_data = @reverse ? @redis_connection.zrangebyscore(leaderboard_name, minimum_score, maximum_score) : @redis_connection.zrevrangebyscore(leaderboard_name, maximum_score, minimum_score) if raw_leader_data return ranked_in_list_in(leaderboard_name, raw_leader_data, ) else return [] end end |
#merge_leaderboards(destination, keys, options = {:aggregate => :sum}) ⇒ Object
Merge leaderboards given by keys with this leaderboard into a named destination leaderboard.
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# File 'lib/leaderboard.rb', line 724 def merge_leaderboards(destination, keys, = {:aggregate => :sum}) @redis_connection.zunionstore(destination, keys.insert(0, @leaderboard_name), ) end |
#page_for(member, page_size = DEFAULT_PAGE_SIZE) ⇒ Object
Determine the page where a member falls in the leaderboard.
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# File 'lib/leaderboard.rb', line 457 def page_for(member, page_size = DEFAULT_PAGE_SIZE) page_for_in(@leaderboard_name, member, page_size) end |
#page_for_in(leaderboard_name, member, page_size = DEFAULT_PAGE_SIZE) ⇒ Object
Determine the page where a member falls in the named leaderboard.
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# File 'lib/leaderboard.rb', line 468 def page_for_in(leaderboard_name, member, page_size = DEFAULT_PAGE_SIZE) rank_for_member = @reverse ? @redis_connection.zrank(leaderboard_name, member) : @redis_connection.zrevrank(leaderboard_name, member) if rank_for_member.nil? rank_for_member = 0 else rank_for_member += 1 end (rank_for_member.to_f / page_size.to_f).ceil end |
#percentile_for(member) ⇒ Object
Retrieve the percentile for a member in the leaderboard.
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# File 'lib/leaderboard.rb', line 425 def percentile_for(member) percentile_for_in(@leaderboard_name, member) end |
#percentile_for_in(leaderboard_name, member) ⇒ Object
Retrieve the percentile for a member in the named leaderboard.
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# File 'lib/leaderboard.rb', line 435 def percentile_for_in(leaderboard_name, member) return nil unless check_member_in?(leaderboard_name, member) responses = @redis_connection.multi do |transaction| transaction.zcard(leaderboard_name) transaction.zrevrank(leaderboard_name, member) end percentile = ((responses[0] - responses[1] - 1).to_f / responses[0].to_f * 100).ceil if @reverse 100 - percentile else percentile end end |
#rank_for(member, use_zero_index_for_rank = false) ⇒ Object
Retrieve the rank for a member in the leaderboard.
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# File 'lib/leaderboard.rb', line 303 def rank_for(member, use_zero_index_for_rank = false) rank_for_in(@leaderboard_name, member, use_zero_index_for_rank) end |
#rank_for_in(leaderboard_name, member, use_zero_index_for_rank = false) ⇒ Object
Retrieve the rank for a member in the named leaderboard.
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# File 'lib/leaderboard.rb', line 314 def rank_for_in(leaderboard_name, member, use_zero_index_for_rank = false) if @reverse if use_zero_index_for_rank return @redis_connection.zrank(leaderboard_name, member) else return @redis_connection.zrank(leaderboard_name, member) + 1 rescue nil end else if use_zero_index_for_rank return @redis_connection.zrevrank(leaderboard_name, member) else return @redis_connection.zrevrank(leaderboard_name, member) + 1 rescue nil end end end |
#rank_member(member, score, member_data = nil) ⇒ Object
Rank a member in the leaderboard.
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# File 'lib/leaderboard.rb', line 114 def rank_member(member, score, member_data = nil) rank_member_in(@leaderboard_name, member, score, member_data) end |
#rank_member_in(leaderboard_name, member, score, member_data) ⇒ Object
Rank a member in the named leaderboard.
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# File 'lib/leaderboard.rb', line 124 def rank_member_in(leaderboard_name, member, score, member_data) @redis_connection.multi do |transaction| transaction.zadd(leaderboard_name, score, member) if member_data transaction.hmset(member_data_key(leaderboard_name, member), *member_data.to_a.flatten) end end end |
#rank_members(*members_and_scores) ⇒ Object
Rank an array of members in the leaderboard.
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# File 'lib/leaderboard.rb', line 187 def rank_members(*members_and_scores) rank_members_in(@leaderboard_name, *members_and_scores) end |
#rank_members_in(leaderboard_name, *members_and_scores) ⇒ Object
Rank an array of members in the named leaderboard.
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# File 'lib/leaderboard.rb', line 195 def rank_members_in(leaderboard_name, *members_and_scores) if members_and_scores.is_a?(Array) members_and_scores.flatten! end @redis_connection.multi do |transaction| members_and_scores.each_slice(2) do |member_and_score| transaction.zadd(leaderboard_name, member_and_score[1], member_and_score[0]) end end end |
#ranked_in_list(members, options = {}) ⇒ Object
Retrieve a page of leaders from the leaderboard for a given list of members.
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# File 'lib/leaderboard.rb', line 656 def ranked_in_list(members, = {}) ranked_in_list_in(@leaderboard_name, members, ) end |
#ranked_in_list_in(leaderboard_name, members, options = {}) ⇒ Object
Retrieve a page of leaders from the named leaderboard for a given list of members.
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# File 'lib/leaderboard.rb', line 667 def ranked_in_list_in(leaderboard_name, members, = {}) = DEFAULT_LEADERBOARD_REQUEST_OPTIONS.dup .merge!() ranks_for_members = [] responses = @redis_connection.multi do |transaction| members.each do |member| if @reverse transaction.zrank(leaderboard_name, member) if [:with_rank] else transaction.zrevrank(leaderboard_name, member) if [:with_rank] end transaction.zscore(leaderboard_name, member) if [:with_scores] end end members.each_with_index do |member, index| data = {} data[:member] = member if [:with_scores] if [:with_rank] if [:use_zero_index_for_rank] data[:rank] = responses[index * 2] else data[:rank] = responses[index * 2] + 1 rescue nil end data[:score] = responses[index * 2 + 1].to_f else data[:score] = responses[index].to_f end else if [:with_rank] if [:use_zero_index_for_rank] data[:rank] = responses[index] else data[:rank] = responses[index] + 1 rescue nil end end end if [:with_member_data] data[:member_data] = member_data_for_in(leaderboard_name, member) end ranks_for_members << data end ranks_for_members end |
#remove_member(member) ⇒ Object
Remove a member from the leaderboard.
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# File 'lib/leaderboard.rb', line 210 def remove_member(member) remove_member_from(@leaderboard_name, member) end |
#remove_member_data(member) ⇒ Object
Remove the optional member data for a given member in the leaderboard.
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# File 'lib/leaderboard.rb', line 172 def remove_member_data(member) remove_member_data_in(@leaderboard_name, member) end |
#remove_member_data_in(leaderboard_name, member) ⇒ Object
Remove the optional member data for a given member in the named leaderboard.
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# File 'lib/leaderboard.rb', line 180 def remove_member_data_in(leaderboard_name, member) @redis_connection.del(member_data_key(leaderboard_name, member)) end |
#remove_member_from(leaderboard_name, member) ⇒ Object
Remove a member from the named leaderboard.
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# File 'lib/leaderboard.rb', line 218 def remove_member_from(leaderboard_name, member) @redis_connection.multi do |transaction| transaction.zrem(leaderboard_name, member) transaction.del(member_data_key(leaderboard_name, member)) end end |
#remove_members_in_score_range(min_score, max_score) ⇒ Object
Remove members from the leaderboard in a given score range.
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# File 'lib/leaderboard.rb', line 407 def remove_members_in_score_range(min_score, max_score) remove_members_in_score_range_in(@leaderboard_name, min_score, max_score) end |
#remove_members_in_score_range_in(leaderboard_name, min_score, max_score) ⇒ Object
Remove members from the named leaderboard in a given score range.
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# File 'lib/leaderboard.rb', line 416 def remove_members_in_score_range_in(leaderboard_name, min_score, max_score) @redis_connection.zremrangebyscore(leaderboard_name, min_score, max_score) end |
#score_and_rank_for(member, use_zero_index_for_rank = false) ⇒ Object
Retrieve the score and rank for a member in the leaderboard.
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# File 'lib/leaderboard.rb', line 374 def score_and_rank_for(member, use_zero_index_for_rank = false) score_and_rank_for_in(@leaderboard_name, member, use_zero_index_for_rank) end |
#score_and_rank_for_in(leaderboard_name, member, use_zero_index_for_rank = false) ⇒ Object
Retrieve the score and rank for a member in the named leaderboard.
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# File 'lib/leaderboard.rb', line 385 def score_and_rank_for_in(leaderboard_name, member, use_zero_index_for_rank = false) responses = @redis_connection.multi do |transaction| transaction.zscore(leaderboard_name, member) if @reverse transaction.zrank(leaderboard_name, member) else transaction.zrevrank(leaderboard_name, member) end end responses[0] = responses[0].to_f if !use_zero_index_for_rank responses[1] = responses[1] + 1 rescue nil end {:member => member, :score => responses[0], :rank => responses[1]} end |
#score_for(member) ⇒ Object
Retrieve the score for a member in the leaderboard.
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# File 'lib/leaderboard.rb', line 335 def score_for(member) score_for_in(@leaderboard_name, member) end |
#score_for_in(leaderboard_name, member) ⇒ Object
Retrieve the score for a member in the named leaderboard.
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# File 'lib/leaderboard.rb', line 345 def score_for_in(leaderboard_name, member) @redis_connection.zscore(leaderboard_name, member).to_f end |
#total_members ⇒ Object
Retrieve the total number of members in the leaderboard.
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# File 'lib/leaderboard.rb', line 228 def total_members total_members_in(@leaderboard_name) end |
#total_members_in(leaderboard_name) ⇒ Object
Retrieve the total number of members in the named leaderboard.
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# File 'lib/leaderboard.rb', line 237 def total_members_in(leaderboard_name) @redis_connection.zcard(leaderboard_name) end |
#total_members_in_score_range(min_score, max_score) ⇒ Object
Retrieve the total members in a given score range from the leaderboard.
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# File 'lib/leaderboard.rb', line 265 def total_members_in_score_range(min_score, max_score) total_members_in_score_range_in(@leaderboard_name, min_score, max_score) end |
#total_members_in_score_range_in(leaderboard_name, min_score, max_score) ⇒ Object
Retrieve the total members in a given score range from the named leaderboard.
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# File 'lib/leaderboard.rb', line 276 def total_members_in_score_range_in(leaderboard_name, min_score, max_score) @redis_connection.zcount(leaderboard_name, min_score, max_score) end |
#total_pages ⇒ Object
Retrieve the total number of pages in the leaderboard.
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# File 'lib/leaderboard.rb', line 244 def total_pages total_pages_in(@leaderboard_name) end |
#total_pages_in(leaderboard_name, page_size = nil) ⇒ Object
Retrieve the total number of pages in the named leaderboard.
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# File 'lib/leaderboard.rb', line 254 def total_pages_in(leaderboard_name, page_size = nil) page_size ||= @page_size.to_f (total_members_in(leaderboard_name) / page_size.to_f).ceil end |
#update_member_data(member, member_data) ⇒ Object
Update the optional member data for a given member in the leaderboard.
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# File 'lib/leaderboard.rb', line 156 def update_member_data(member, member_data) update_member_data_in(@leaderboard_name, member, member_data) end |
#update_member_data_in(leaderboard_name, member, member_data) ⇒ Object
Update the optional member data for a given member in the named leaderboard.
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# File 'lib/leaderboard.rb', line 165 def update_member_data_in(leaderboard_name, member, member_data) @redis_connection.hmset(member_data_key(leaderboard_name, member), *member_data.to_a.flatten) end |