public bool Delete(Relation relation)
{
bool IsSuccess = false;
using (ISession session = sessionFactory.OpenSession())
{
ITransaction trans = session.BeginTransaction();
session.Delete(relation);
trans.Commit();
if (trans.WasCommitted)
{
IsSuccess = true;
}
}
return IsSuccess;
}
public bool Save(Relation relation)
{
bool IsSuccess = false;
using (ISession session=sessionFactory.OpenSession())
{
ITransaction trans = session.BeginTransaction();
Guid id=(Guid)session.Save(relation);
trans.Commit();
if (id != Guid.Empty)
{
IsSuccess = true;
}
}
return IsSuccess;
}
private void RemoveRelation(Relation removeRelation,Guid guidFlag)
{
bool IsRemoved = RelationsDAO.CreateRelationsDAO().Delete(removeRelation);
if (!IsRemoved)
{
MessageBoxEx.Show(Constant.KM_REMOVE_REFERENCE_WRONG, Constant.KM_TYPE_WARN, MessageBoxButtons.OK);
}
else
{
//rectlblContainer.Controls.RemoveAt(0);
RectangleLabel removeLabel = null;
foreach (RectangleLabel rlbl in rectlblContainer.Controls)
{
if (rlbl.Tag.ToString() == guidFlag.ToString())
{
removeLabel = rlbl;
}
}
if (removeLabel != null)
{
rectlblContainer.Controls.Remove(removeLabel);
}
}
}
/// <summary>
/// 选择标签，用于“选中标签”并同步到数据库
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Label_LabelCheckedEvent(object sender, LabelWithCheckEventArgs e)
{
if (CallBack)
{
return;
}
CheckBox lc = (CheckBox)sender;
CheckState cs = lc.CheckState;
curNode = tv_Folder.SelectedNode;
if (curNode == null)
{
MessageBoxEx.Show(Constant.KM_WN_NODE_NOT_SELECTED, Constant.KM_TYPE_WARN, MessageBoxButtons.OK);
return;
}
if (cs.ToString() == "Checked")
{
//removeRelation = null;
//labels = e.LabelText;
labelsId = e.Id;//tagId
guidFlag = Guid.NewGuid();
bool exist = CheckExistTag(curNode.Name.ToGuid(), e.Id);
if (exist)
{
MessageBoxEx.Show(Constant.KM_WN_ADD_EXIST_LABEL_NOT_ALLOWED, Constant.KM_TYPE_WARN, MessageBoxButtons.OK);
CallBack = true;
lc.CheckState = CheckState.Unchecked;
CallBack = false;
return;
}
if (labelDic.ContainsValue(labelsId))
{
MessageBoxEx.Show(Constant.KM_WN_ADD_EXIST_LABEL_NOT_ALLOWED, Constant.KM_TYPE_WARN, MessageBoxButtons.OK);
return;
}
labelDic.Add(labelsId, guidFlag);
//将关联存入数据库
if (curNode == null)
{
MessageBoxEx.Show(Constant.KM_WN_NODE_NOT_SELECTED, Constant.KM_TYPE_WARN, MessageBoxButtons.OK);
return;
}
if (curNode.Tag.ToString() == Enums.LEAVES.ToString())
{
//int i = SQLHelper.AddRelations(curNode.Name.ToInt(), e.Id);
removeRelation=AddRelation(curNode.Name.ToGuid(), e.Id, guidFlag,removeRelation);
}
}
else if (cs.ToString() == "Unchecked")
{
//guidFlag = Guid.Empty;
//将关联移出数据库
curNode = tv_Folder.SelectedNode;
if (curNode == null)
{
MessageBoxEx.Show(Constant.KM_WN_NOTE_NOT_SELECTED, Constant.KM_TYPE_WARN, MessageBoxButtons.OK);
return;
}
if (curNode.Tag.ToString() == Enums.LEAVES.ToString())
{
bool Nothing;
Relation i = RelationsDAO.CreateRelationsDAO().IsExistTag(curNode.Name.ToGuid(),e.Id,out Nothing);
if (removeRelation != null)
{
removeRelation = i;
RemoveRelation(removeRelation, labelDic[e.Id]);
labelDic.Remove(e.Id);
}
}
}
//txt_SelectedLabel.ControlText = ShowLabel(labelDic);
//变更为 向Panel中添加Rectanglelabel 重点
}
/// <summary>
/// 保存文章
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btn_Save_Click(object sender, EventArgs e)
{
TreeNode node = tv_Folder.SelectedNode;
if (node == null)
{
return;
}
if (node.Tag.ToString() == Enums.LEAVES.ToString())
{
bool IsSuccess = false;
//同时更新标题和内容(原方案)
//int i = SQLHelper.UpdateContent(node.Name.ToInt(), txt_Title.Text, txt_Content.Text);
//同时更新标题和内容(新方案)
Model.PostContents.PostContent post = PostContentsDAO.CreatePostContentsDAO().GetEntityById(node.Name.ToGuid());
post.Enable = true;
post.Type = true;
post.Title = txt_Title.ControlText;
post.Content = txt_Content.ControlText;
post.ModifyDate = DateTime.Now;
IsSuccess= PostContentsDAO.CreatePostContentsDAO().Update(post);
//重要！同时更新文章标签，此处需要设计一个额外的控件，圆角矩形来存储Relation对象
if (rectlblContainer.Controls.Count > 0)
{
//循环添加Tag和Post的关系Relation
foreach (Control rectLbl in rectlblContainer.Controls)
{
Model.PostContents.PostContent currentPost = PostContentsDAO.CreatePostContentsDAO().GetEntityById(node.Name.ToGuid());//Guid.NewGuid 临时替代真正的ID
Model.Tags.Tag currentag = TagsDAO.CreateTagsDAO().GetTagById(rectLbl.Tag.ToGuid());//Guid.NewGuid 临时替代真正的ID
Model.Relations.Relation relation = new Model.Relations.Relation();
relation.RelationId = Guid.NewGuid();
relation.Post = currentPost;
relation.TagId = currentag.TagId;
bool IsSaved = RelationsDAO.CreateRelationsDAO().Save(relation);
}
}
//同时重新加载Treeview。已注掉，暂时没有必要Reload
//BuildTree(this.tv_Folder, GetFolderSet());
if (IsSuccess)
{
SetReadOnly(true);
MessageBoxEx.Show(Constant.KM_INFO_SAVE_OK,Constant.KM_TYPE_INFO , MessageBoxButtons.OK);
tv_Folder.SelectedNode = node;
}
}
else
{
MessageBoxEx.Show("请选择要保存的文章",Constant.KM_TYPE_WARN, MessageBoxButtons.OK);
}
}
private Relation AddRelation(Guid postId,Guid tagId, Guid guidFlag,Relation removeRelation)
{
//加非空校验;
removeRelation.RelationId = Guid.NewGuid();
removeRelation.PostId = postId;
removeRelation.TagId = tagId;
bool IsSucess = RelationsDAO.CreateRelationsDAO().Save(removeRelation);
Model.Tags.Tag tag = TagsDAO.CreateTagsDAO().GetTagById(tagId);
//removeRelation = relation;
if (IsSucess)
{
RectangleLabel label = new RectangleLabel();
label.ControlText = tag.TagContent;
label.BorderColor = Color.Purple;
label.BorderWidth = 1;
label.InnerColor = Color.Transparent;
//label.Tag = guidFlag;
label.Tag = tagId;
//计算位置
AddLabelToLocation(rectlblContainer, 2, label);
//rectlblContainer.Controls.Add(label);//添加一个事件，E区显示已添加标签
}
if (!IsSucess)
{
MessageBoxEx.Show(Constant.KM_ER_REFERENCE_ID_WRONG, Constant.KM_TYPE_WARN, MessageBoxButtons.OK);
}
return removeRelation;
}