refs #40 trying preload supply/resource items

Author: sanak

lib/redmine_supply/patches/issue_patch.rb

@@ -4,7 +4,7 @@ module IssuePatch
       def self.apply
         unless Issue < self
           Issue.prepend self
-
+          Issue.extend ClassMethods
           Issue.class_eval do
 
             has_many :issue_supply_items, dependent: :destroy
@@ -57,6 +57,38 @@ def delete_supply_item_journals
       end
       private :delete_supply_item_journals
 
+      module ClassMethods
+        # Preloads issue supply items for a collection of issues
+        def load_issue_supply_items(issues, user=User.current)
+          if issues.any?
+            issue_ids = issues.map(&:id)
+            _issue_supply_items = IssueSupplyItem.where(:issue_id => issue_ids)
+            issues.each do |issue|
+              issue.instance_variable_set "@issue_supply_items", _issue_supply_items.select {|s| s.issue_id == issue.id}
+            end
+          end
+        end
+        # Preloads issue human resource items for a collection of issues
+        def load_issue_human_resource_items(issues, user=User.current)
+          if issues.any?
+            issue_ids = issues.map(&:id)
+            _issue_human_resource_items = IssueResourceItem.where(resource_item_id: ResourceItem.humans.ids).where(:issue_id => issue_ids)
+            issues.each do |issue|
+              issue.instance_variable_set "@issue_human_resource_items", _issue_human_resource_items.select {|h| h.issue_id == issue.id}
+            end
+          end
+        end
+        # Preloads issue asset resource items for a collection of issues
+        def load_issue_asset_resource_items(issues, user=User.current)
+          if issues.any?
+            issue_ids = issues.map(&:id)
+            _issue_asset_resource_items = IssueResourceItem.where(resource_item_id: ResourceItem.assets.ids).where(:issue_id => issue_ids)
+            issues.each do |issue|
+              issue.instance_variable_set "@issue_asset_resource_items", _issue_asset_resource_items.select {|a| a.issue_id == issue.id}
+            end
+          end
+        end
+      end
     end
   end
 end

lib/redmine_supply/patches/issue_query_patch.rb

@@ -29,7 +29,18 @@ def add_supply_items(a)
 
       def issues(options={})
         options[:include] = add_supply_items(options[:include] || [])
-        super(options)
+        issues = super(options)
+        # Preload issue supply/resource items
+        if has_column?(:issue_supply_item_names)
+          Issue.load_issue_supply_items(issues)
+        end
+        if has_column?(:issue_human_resource_item_names)
+          Issue.load_issue_human_resource_items(issues)
+        end
+        if has_column?(:issue_asset_resource_item_names)
+          Issue.load_issue_asset_resource_items(issues)
+        end
+        issues
       end
 
       def issue_ids(options={})