/// <summary>
/// 按匿名表达式更新
/// </summary>
/// <typeparam name="TResult"></typeparam>
/// <param name="expression"></param>
/// <param name="newExpress"></param>
/// <returns></returns>
public int Update <TResult>(Expression <Func <T, bool> > expression, Expression <Func <T, TResult> > newExpress)
{
var c = new ParameCollection();
if (newExpress.Body is NewExpression)
{
var newExp = newExpress.Body as NewExpression;
for (int i = 0; i < newExp.Members.Count; i++)
{
var m = newExp.Members[i];
var v = newExp.Arguments[i];
bool cos;
var value = ConstantValueVisitor.GetMemberExpressionValue(v, out cos);
c.Add(m.Name, value);
}
}
else if (newExpress.Body is MemberInitExpression)
{
var memberInitExp = (newExpress.Body as MemberInitExpression);
foreach (MemberAssignment m in memberInitExp.Bindings)
{
bool cos;
var value = ConstantValueVisitor.GetMemberExpressionValue(m.Expression, out cos);
c.Add(m.Member.Name, value);
}
}
var db = DBExtend;
var n = db.Update(expression, c);
return(n);
}
internal ParameCollection GetUpdateField <TModel>(TModel obj) where TModel : class
{
ParameCollection c = new ParameCollection();
if (obj is IModel)
{
c = (obj as IModel).GetUpdateField(_DBAdapter);//手动指定变更
if (c.Count > 0)
{
return(c);
}
}
var fields = TypeCache.GetProperties(typeof(TModel), true);//全量更新
foreach (var f in fields.Values)
{
if (f.IsPrimaryKey)
{
continue;
}
c.Add(f.MemberName, f.GetValue(obj));
}
return(c);
}
/// <summary>
/// 获取被修改的字段
/// </summary>
/// <returns></returns>
public ParameCollection GetUpdateField(bool check = true)
{
var c = new ParameCollection();
var fields = TypeCache.GetProperties(GetType(), true);
if (this.GetChanges().Count > 0)//按手动指定更改
{
foreach (var item in this.GetChanges())
{
var key = item.Key.Replace("$", "");
var f = fields[key];
if (f == null)
{
continue;
}
if (f.IsPrimaryKey || f.FieldType != Attribute.FieldType.数据库字段)
{
continue;
}
var value = item.Value;
//如果表示值为被追加 名称为$name
//使用Cumulation扩展方法后按此处理
if (key != item.Key)//按$name=name+'123123'
{
if (f.PropertyType == typeof(string))
{
value = string.Format("{0}+'{1}'", key, value);
}
else
{
value = string.Format("{0}+{1}", key, value);
}
}
c[item.Key] = value;
}
return(c);
}
//按对象对比
var origin = this.OriginClone;
if (origin == null && check)
{
throw new CRLException("_originClone为空,请确认此对象是由查询创建");
}
foreach (var f in fields.Values)
{
if (f.IsPrimaryKey)
{
continue;
}
var originValue = f.GetValue(origin);
var currentValue = f.GetValue(this);
if (!Object.Equals(originValue, currentValue))
{
c.Add(f.MemberName, currentValue);
}
}
return(c);
}
/// <summary>
/// 获取被修改的字段
/// </summary>
/// <returns></returns>
public ParameCollection GetUpdateField(DBAdapter.DBAdapterBase dBAdapterBase = null, bool check = true)
{
var c = new ParameCollection();
var fields = TypeCache.GetProperties(GetType(), true);
if (this.GetChanges().Count > 0)//按手动指定更改
{
foreach (var item in this.GetChanges())
{
var key = item.Key.Replace("$", "");
var f = fields[key];
if (f == null)
{
continue;
}
if (f.IsPrimaryKey)
{
continue;
}
var value = item.Value;
//如果表示值为被追加 名称为$name
//使用Cumulation扩展方法后按此处理
if (key != item.Key)//按$name=name+'123123'
{
if (dBAdapterBase != null)
{
value = dBAdapterBase.GetFieldConcat(dBAdapterBase.KeyWordFormat(f.MapingName), value, f.PropertyType);
}
}
c[item.Key] = value;
}
return(c);
}
//按对象对比
var origin = this.OriginClone;
if (origin == null && check)
{
throw new CRLException("_originClone为空,请确认此对象是由查询创建");
}
foreach (var f in fields.Values)
{
if (f.IsPrimaryKey)
{
continue;
}
var originValue = f.GetValue(origin);
var currentValue = f.GetValue(this);
if (!Equals(originValue, currentValue))
{
c.Add(f.MapingName, currentValue);
}
}
return(c);
}
/// <summary>
/// 按匿名对象更新
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <param name="expression"></param>
/// <param name="updateValue"></param>
/// <returns></returns>
public int Update <TModel>(Expression <Func <TModel, bool> > expression, dynamic updateValue) where TModel : CRL.IModel, new()
{
var properties = updateValue.GetType().GetProperties();
var c = new ParameCollection();
foreach (var p in properties)
{
c.Add(p.Name, p.GetValue(updateValue));
}
return(Update(expression, c));
}
ParameCollection GetUpdateField <T>(T obj) where T : IModel, new()
{
var c = new ParameCollection();
var fields = TypeCache.GetProperties(typeof(T), true);
if (obj.Changes.Count > 0)
{
foreach (var item in obj.Changes)
{
var f = fields[item.Key];
if (f == null)
{
continue;
}
if (f.IsPrimaryKey || f.FieldType == Attribute.FieldType.虚拟字段)
{
continue;
}
c[item.Key] = item.Value;
}
return(c);
}
var origin = obj.OriginClone;
if (origin == null)
{
throw new Exception("_originClone为空,请确认此对象是由查询创建");
}
CheckData(obj);
foreach (var f in fields.Values)
{
if (f.IsPrimaryKey)
{
continue;
}
if (!string.IsNullOrEmpty(f.VirtualField))
{
continue;
}
var originValue = f.GetValue(origin);
var currentValue = f.GetValue(obj);
if (!Object.Equals(originValue, currentValue))
{
c.Add(f.Name, currentValue);
}
}
return(c);
}
/// <summary>
/// 按匿名对象更新
/// </summary>
/// <typeparam name="TOjbect"></typeparam>
/// <param name="expression"></param>
/// <param name="updateValue"></param>
/// <returns></returns>
public int Update <TOjbect>(Expression <Func <TModel, bool> > expression, TOjbect updateValue) where TOjbect : class
{
var properties = updateValue.GetType().GetProperties();
var c = new ParameCollection();
foreach (var p in properties)
{
c.Add(p.Name, p.GetValue(updateValue));
}
var query = GetLambdaQuery();
query.Where(expression);
int n = Update(query, c);
return(n);
}
internal ParameCollection GetUpdateField <TModel>(TModel obj) where TModel : IModel, new()
{
var c = new ParameCollection();
var fields = TypeCache.GetProperties(typeof(TModel), true);
if (obj.GetChanges().Count > 0)//按手动指定更改
{
foreach (var item in obj.GetChanges())
{
var key = item.Key.Replace("$", "");
var f = fields[key];
if (f == null)
{
continue;
}
if (f.IsPrimaryKey || f.FieldType != Attribute.FieldType.数据库字段)
{
continue;
}
var value = item.Value;
//如果表示值为被追加 名称为$name
//使用Cumulation扩展方法后按此处理
if (key != item.Key)//按$name=name+'123123'
{
if (f.PropertyType == typeof(string))
{
value = string.Format("{0}+'{1}'", key, value);
}
else
{
value = string.Format("{0}+{1}", key, value);
}
}
c[item.Key] = value;
}
return(c);
}
//按对象对比
var origin = obj.OriginClone;
if (origin == null)
{
throw new CRLException("_originClone为空,请确认此对象是由查询创建");
}
foreach (var f in fields.Values)
{
if (f.IsPrimaryKey)
{
continue;
}
if (!string.IsNullOrEmpty(f.VirtualField))
{
continue;
}
var originValue = f.GetValue(origin);
var currentValue = f.GetValue(obj);
if (!Object.Equals(originValue, currentValue))
{
c.Add(f.MemberName, currentValue);
}
}
if (c.Count() > 0)
{
CheckData(obj);
}
return(c);
}
ParameCollection GetUpdateField <TModel>(TModel obj) where TModel : IModel, new()
{
var c = new ParameCollection();
var fields = TypeCache.GetProperties(typeof(TModel), true);
if (obj.Changes.Count > 0)
{
foreach (var item in obj.Changes)
{
var key = item.Key.Replace("$", "");
var f = fields[key];
if (f == null)
{
continue;
}
if (f.IsPrimaryKey || f.FieldType == Attribute.FieldType.虚拟字段)
{
continue;
}
var value = item.Value;
//如果表示值为被追求 名称为$name
if (key != item.Key)//按$name=name+'123123'
{
if (value.ToString().IsNumber())
{
value = string.Format("{0}+{1}", key, value);
}
else
{
value = string.Format("{0}+'{1}'", key, value);
}
}
c[item.Key] = value;
}
return(c);
}
var origin = obj.OriginClone;
if (origin == null)
{
throw new Exception("_originClone为空,请确认此对象是由查询创建");
}
CheckData(obj);
foreach (var f in fields.Values)
{
if (f.IsPrimaryKey)
{
continue;
}
if (!string.IsNullOrEmpty(f.VirtualField))
{
continue;
}
var originValue = f.GetValue(origin);
var currentValue = f.GetValue(obj);
if (!Object.Equals(originValue, currentValue))
{
c.Add(f.Name, currentValue);
}
}
return(c);
}
