Created a new configuration entry to enable saving keychains charms to the local DB.

Author: wangxingzhen

config.example.js

@@ -68,4 +68,6 @@ module.exports = {
     'bulk_key': '',
     // OPTIONAL: Maximum queue size allowed before dropping requests
     'max_queue_size': -1,
+    // OPTIONAL: Enable caching of charms to the local DB for quick retrieval
+    'cache_charms': false,
 };

index.js

@@ -14,10 +14,11 @@ const winston = require('winston'),
     InspectURL = require('./lib/inspect_url'),
     botController = new (require('./lib/bot_controller'))(),
     CONFIG = require(args.config),
-    postgres = new (require('./lib/postgres'))(CONFIG.database_url, CONFIG.enable_bulk_inserts),
+    postgres = new (require('./lib/postgres'))(CONFIG.database_url, CONFIG.enable_bulk_inserts, CONFIG.cache_charms),
     gameData = new (require('./lib/game_data'))(CONFIG.game_files_update_interval, CONFIG.enable_game_file_updates),
     errors = require('./errors'),
     Job = require('./lib/job');
+const {config} = require("winston");
 
 if (CONFIG.max_simultaneous_requests === undefined) {
     CONFIG.max_simultaneous_requests = 1;

lib/postgres.js

@@ -10,12 +10,13 @@ function flatten(arr){
 }
 
 class Postgres {
-    constructor(url, enableBulkInserts) {
+    constructor(url, enableBulkInserts, cacheCharms) {
         this.pool = new Pool({
             connectionString: url
         });
 
         this.enableBulkInserts = enableBulkInserts || false;
+        this.cacheCharms = cacheCharms || false;
 
         if (enableBulkInserts) {
             this.queuedInserts = [];
@@ -210,7 +211,11 @@ class Postgres {
             buf.writeFloatBE(item.floatvalue, 0);
             item.paintwear = buf.readInt32BE(0);
 
-            if (item.floatvalue <= 0 && item.defindex !== 507) {
+            if (item.defindex === 1355 && !this.cacheCharms) {
+                // Charms (defindex 1355): skip the current item if cacheCharms is false.
+                continue
+            }
+            if (item.floatvalue <= 0 && item.defindex !== 507 && item.defindex !== 1355) {
                 // Only insert weapons, naive check
                 // Special case for the 0 float Karambit
                 continue;