Projektstart

backend/node_modules/bullmq/dist/esm/commands/paginate-1.lua

@@ -0,0 +1,49 @@
+--[[
+    Paginate a set or hash
+
+    Input:
+      KEYS[1] key pointing to the set or hash to be paginated.
+    
+      ARGV[1]  page start offset
+      ARGV[2]  page end offset (-1 for all the elements)
+      ARGV[3]  cursor
+      ARGV[4]  offset
+      ARGV[5]  max iterations
+      ARGV[6]  fetch jobs?
+      
+    Output:
+      [cursor, offset, items, numItems]
+]]
+local rcall = redis.call
+
+-- Includes
+--- @include "includes/findPage"
+
+local key = KEYS[1]
+local scanCommand = "SSCAN"
+local countCommand = "SCARD"
+local type = rcall("TYPE", key)["ok"]
+
+if type == "none" then
+    return {0, 0, {}, 0}
+elseif type == "hash" then
+    scanCommand = "HSCAN"
+    countCommand = "HLEN"
+elseif type ~= "set" then
+    return
+        redis.error_reply("Pagination is only supported for sets and hashes.")
+end
+
+local numItems = rcall(countCommand, key)
+local startOffset = tonumber(ARGV[1])
+local endOffset = tonumber(ARGV[2])
+if endOffset == -1 then 
+  endOffset = numItems
+end
+local pageSize = (endOffset - startOffset) + 1
+
+local cursor, offset, items, jobs = findPage(key, scanCommand, startOffset,
+                                       pageSize, ARGV[3], tonumber(ARGV[4]),
+                                       tonumber(ARGV[5]), ARGV[6])
+
+return {cursor, offset, items, numItems, jobs}