Get rid of cont_pairs

Author: Elizaveta Dokshina

crud/common/state.lua

@@ -1,25 +1,22 @@
-local checks = require('checks')
 local uuid = require('uuid')
 
 local state = {}
 
-local operations = {}
+local states = {}
 
 function state.get(id)
-    checks('?string')
     id = id or uuid.str()
-    local op_state = operations[id]
+    local op_state = states[id]
     if op_state == nil then
-        op_state = {}
-        op_state.id = id
-        operations[op_state.id] = op_state
+        op_state = { id = id }
+        states[id] = op_state
     end
     return op_state
 end
 
 function state.clear(id)
-    checks('string')
-    operations[id] = nil
+    assert(id ~= nil)
+    states[id] = nil
     return true
 end
 

crud/common/utils.lua

@@ -81,4 +81,22 @@ function utils.extract_key(tuple, key_parts)
     return key
 end
 
+function utils.merge_primary_key_parts(key_parts, pk_parts)
+    local merged_parts = {}
+    local key_fieldnos = {}
+
+    for _, part in ipairs(key_parts) do
+        table.insert(merged_parts, part)
+        key_fieldnos[part.fieldno] = true
+    end
+
+    for _, pk_part in ipairs(pk_parts) do
+        if not key_fieldnos[pk_part.fieldno] then
+            table.insert(merged_parts, pk_part)
+        end
+    end
+
+    return merged_parts
+end
+
 return utils