Started on the local mongo querier

app/lib/LocalMongo.coffee

@@ -0,0 +1,29 @@
+LocalMongo = module.exports
+
+LocalMongo.doQuerySelector = (value, operatorObj) ->
+  for operator, body of operatorObj
+    switch operator
+      when '$gt' then return false unless value > body
+      when '$gte' then return false unless value >= body
+      when '$in' then return false unless value in body
+      when '$lt' then return false unless value < body
+      when '$lte' then return false unless value <= body
+      when '$ne' then return false unless value != body
+      when '$nin' then return false if value in body
+  true
+
+
+LocalMongo.doLogicalOperator = (target, operatorObj) ->
+  for operator, body of operatorObj
+    switch operator
+      when '$or' then return false unless _.reduce body (res, query) -> res or matchesQuery target x
+      when '$and' then return false unless _.reduce body (res, query) -> res and matchesQuery target query
+      #when '$not' then return false if
+
+
+LocalMongo.matchesQuery = (target, query) ->
+  for key, value of query
+    return false unless key in target
+    if typeof value != 'object'
+      return false unless target[key] == value
+    else return false unless doQuerySelector value query[key]