/// <summary>
/// Update
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql打包对象</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Update(MemberExpression expression, SqlWrapper sqlWrapper)
{
var obj = expression.ToObject();
var properties = obj?.GetType().GetProperties();
foreach (var item in properties)
{
var type = item.DeclaringType.ToString().Contains("AnonymousType") ?
sqlWrapper.DefaultType :
item.DeclaringType;
var(columnName, isInsert, isUpdate) = sqlWrapper.GetColumnInfo(type, item);
if (isUpdate)
{
var value = item.GetValue(obj, null);
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper += columnName + " = ";
sqlWrapper.AddDbParameter(value);
sqlWrapper += ",";
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
}
return(sqlWrapper);
}
/// <summary>
/// Update
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql打包对象</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Update(NewExpression expression, SqlWrapper sqlWrapper)
{
for (int i = 0; i < expression.Members.Count; i++)
{
var m = expression.Members[i];
var t = m.DeclaringType.ToString().Contains("AnonymousType") ?
sqlWrapper.DefaultType :
m.DeclaringType;
var(columnName, isInsert, isUpdate) = sqlWrapper.GetColumnInfo(t, m);
if (isUpdate)
{
var value = expression.Arguments[i]?.ToObject();
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper += columnName + " = ";
sqlWrapper.AddDbParameter(value);
sqlWrapper += ",";
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
}
return(sqlWrapper);
}
/// <summary>
/// Update
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Update(NewExpression expression, SqlWrapper sqlWrapper)
{
for (int i = 0; i < expression.Members.Count; i++)
{
var m = expression.Members[i];
var t = m.DeclaringType.IsAnonymousType() ?
sqlWrapper.DefaultType :
m.DeclaringType;
var columnInfo = sqlWrapper.GetColumnInfo(t, m);
if (columnInfo.IsUpdate)
{
var value = expression.Arguments[i]?.ToObject();
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper += columnInfo.ColumnName + " = ";
sqlWrapper.AddDbParameter(value, columnInfo.DataType);
sqlWrapper += ",";
}
}
}
sqlWrapper.RemoveLast(',');
return(sqlWrapper);
}
/// <summary>
/// Having
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql打包对象</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Having(MethodCallExpression expression, SqlWrapper sqlWrapper)
{
var key = expression.Method;
if (key.IsGenericMethod)
{
key = key.GetGenericMethodDefinition();
}
//匹配到方法
if (methods.TryGetValue(key.Name, out Action <MethodCallExpression, SqlWrapper> handler))
{
handler(expression, sqlWrapper);
return(sqlWrapper);
}
else
{
try
{
sqlWrapper.AddDbParameter(expression.ToObject());
return(sqlWrapper);
}
catch
{
throw new NotImplementedException("无法解析方法" + expression.Method);
}
}
}
/// <summary>
/// Update
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql打包对象</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Update(MemberInitExpression expression, SqlWrapper sqlWrapper)
{
foreach (MemberAssignment m in expression.Bindings)
{
var type = m.Member.DeclaringType.ToString().Contains("AnonymousType") ?
sqlWrapper.DefaultType :
m.Member.DeclaringType;
var(columnName, isInsert, isUpdate) = sqlWrapper.GetColumnInfo(type, m.Member);
if (isUpdate)
{
var value = m.Expression.ToObject();
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper += columnName + " = ";
sqlWrapper.AddDbParameter(value);
sqlWrapper += ",";
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
}
return(sqlWrapper);
}
/// <summary>
/// Insert
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Insert(NewExpression expression, SqlWrapper sqlWrapper)
{
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("(");
}
var fields = new List <string>();
for (int i = 0; i < expression.Members?.Count; i++)
{
var m = expression.Members[i];
var t = m.DeclaringType.IsAnonymousType() ?
sqlWrapper.DefaultType :
m.DeclaringType;
var columnInfo = sqlWrapper.GetColumnInfo(t, m);
if (columnInfo.IsInsert)
{
var value = expression.Arguments[i]?.ToObject();
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper.AddDbParameter(value, columnInfo.DataType);
if (!fields.Contains(columnInfo.ColumnName))
{
fields.Add(columnInfo.ColumnName);
}
sqlWrapper += ",";
}
}
}
if (sqlWrapper[^ 1] == ',')
/// <summary>
/// Insert
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Insert(NewExpression expression, SqlWrapper sqlWrapper)
{
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("(");
}
var fields = new List <string>();
for (int i = 0; i < expression.Members?.Count; i++)
{
var m = expression.Members[i];
var t = m.DeclaringType.IsAnonymousType() ?
sqlWrapper.DefaultType :
m.DeclaringType;
var columnInfo = sqlWrapper.GetColumnInfo(t, m);
if (columnInfo.IsInsert)
{
var value = expression.Arguments[i]?.ToObject();
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper.AddDbParameter(value, columnInfo.DataType);
if (!fields.Contains(columnInfo.ColumnName))
{
fields.Add(columnInfo.ColumnName);
}
sqlWrapper += ",";
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append(")");
}
else
{
sqlWrapper.Append(" FROM DUAL");
}
}
sqlWrapper.Reset(string.Format(sqlWrapper.ToString(), string.Join(",", fields).TrimEnd(',')));
return(sqlWrapper);
}
/// <summary>
/// Insert
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql打包对象</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Insert(MemberInitExpression expression, SqlWrapper sqlWrapper)
{
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("(");
}
var fields = new List <string>();
foreach (MemberAssignment m in expression.Bindings)
{
var type = m.Member.DeclaringType.ToString().Contains("AnonymousType") ?
sqlWrapper.DefaultType :
m.Member.DeclaringType;
var(columnName, isInsert, isUpdate) = sqlWrapper.GetColumnInfo(type, m.Member);
if (isInsert)
{
var value = m.Expression.ToObject();
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper.AddDbParameter(value);
if (!fields.Contains(columnName))
{
fields.Add(columnName);
}
sqlWrapper += ",";
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append(")");
}
else
{
sqlWrapper.Append(" FROM DUAL");
}
}
sqlWrapper.Reset(string.Format(sqlWrapper.ToString(), string.Join(",", fields).TrimEnd(',')));
return(sqlWrapper);
}
/// <summary>
/// Having
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Having(ConstantExpression expression, SqlWrapper sqlWrapper)
{
//表达式左侧为bool类型常量
if (expression.NodeType == ExpressionType.Constant && expression.Value is bool res)
{
if (!res && sqlWrapper.EndsWith("AND", "OR"))
{
sqlWrapper += " 1 = 0 ";
}
}
else
{
sqlWrapper.AddDbParameter(expression.Value);
}
return(sqlWrapper);
}
/// <summary>
/// Where
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Where(MemberExpression expression, SqlWrapper sqlWrapper)
{
//此处判断expression的Member是否是可空值类型
if (expression.Expression?.NodeType == ExpressionType.MemberAccess && expression.Member.DeclaringType.IsNullable())
{
expression = expression.Expression as MemberExpression;
}
if (expression != null)
{
if (expression.Expression?.NodeType == ExpressionType.Parameter)
{
var type = expression.Expression.Type != expression.Member.DeclaringType ?
expression.Expression.Type :
expression.Member.DeclaringType;
var tableName = sqlWrapper.GetTableName(type);
var tableAlias = (expression.Expression as ParameterExpression)?.Name;
tableAlias = sqlWrapper.GetTableAlias(tableName, tableAlias);
if (tableAlias.IsNotNullOrEmpty())
{
tableAlias += ".";
}
sqlWrapper += tableAlias + sqlWrapper.GetColumnInfo(expression.Member.DeclaringType, expression.Member).ColumnName;
//字段是bool类型
if (expression.NodeType == ExpressionType.MemberAccess && expression.Type.GetCoreType() == typeof(bool))
{
if (sqlWrapper.DatabaseType is DatabaseType.MySql or DatabaseType.PostgreSql)
{
sqlWrapper += " IS TRUE";
}
else
{
sqlWrapper += " = 1";
}
}
}
else
{
sqlWrapper.AddDbParameter(expression.ToObject());
}
}
/// <summary>
/// Join
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql打包对象</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Join(ConstantExpression expression, SqlWrapper sqlWrapper)
{
//表达式左侧为bool类型常量
if (expression.NodeType == ExpressionType.Constant && expression.Value is bool b)
{
var sql = sqlWrapper.ToString().ToUpper().Trim();
if (!b && (sql.EndsWith("AND") || sql.EndsWith("OR")))
{
sqlWrapper += " 1 = 0 ";
}
}
else
{
sqlWrapper.AddDbParameter(expression.Value);
}
return(sqlWrapper);
}
/// <summary>
/// Where
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Where(UnaryExpression expression, SqlWrapper sqlWrapper)
{
var startIndex = sqlWrapper.Length;
if (new[] { ExpressionType.ArrayLength, ExpressionType.ArrayIndex }.Contains(expression.NodeType))
{
sqlWrapper.AddDbParameter(expression.ToObject());
}
else
{
SqlExpressionProvider.Where(expression.Operand, sqlWrapper);
//取非解析
ExpressionNotResolver(expression, sqlWrapper, startIndex);
}
return(sqlWrapper);
}
/// <summary>
/// Insert
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Insert(ListInitExpression expression, SqlWrapper sqlWrapper)
{
if (expression.ToObject() is IEnumerable collection)
{
var i = 0;
var fields = new List <string>();
foreach (var item in collection)
{
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("(");
}
if (i > 0 && sqlWrapper.DatabaseType == DatabaseType.Oracle)
{
sqlWrapper.Append(" UNION ALL SELECT ");
}
var properties = item?.GetType().GetProperties();
foreach (var p in properties)
{
var type = p.DeclaringType.IsAnonymousType() ?
sqlWrapper.DefaultType :
p.DeclaringType;
var columnInfo = sqlWrapper.GetColumnInfo(type, p);
if (columnInfo.IsInsert)
{
var value = p.GetValue(item, null);
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper.AddDbParameter(value, columnInfo.DataType);
if (!fields.Contains(columnInfo.ColumnName))
{
fields.Add(columnInfo.ColumnName);
}
sqlWrapper += ",";
}
}
}
if (sqlWrapper[^ 1] == ',')
/// <summary>
/// In
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql打包对象</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper In(ConstantExpression expression, SqlWrapper sqlWrapper)
{
sqlWrapper.AddDbParameter(expression.Value);
return(sqlWrapper);
}
/// <summary>
/// Insert
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Insert(ListInitExpression expression, SqlWrapper sqlWrapper)
{
if (expression.ToObject() is IEnumerable collection)
{
var i = 0;
var fields = new List <string>();
foreach (var item in collection)
{
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("(");
}
if (i > 0 && sqlWrapper.DatabaseType == DatabaseType.Oracle)
{
sqlWrapper.Append(" UNION ALL SELECT ");
}
var properties = item?.GetType().GetProperties();
foreach (var p in properties)
{
var type = p.DeclaringType.IsAnonymousType() ?
sqlWrapper.DefaultType :
p.DeclaringType;
var columnInfo = sqlWrapper.GetColumnInfo(type, p);
if (columnInfo.IsInsert)
{
var value = p.GetValue(item, null);
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper.AddDbParameter(value, columnInfo.DataType);
if (!fields.Contains(columnInfo.ColumnName))
{
fields.Add(columnInfo.ColumnName);
}
sqlWrapper += ",";
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("),");
}
else
{
sqlWrapper.Append(" FROM DUAL");
}
}
i++;
}
sqlWrapper.RemoveLast(',');
sqlWrapper.Reset(string.Format(sqlWrapper.ToString(), string.Join(",", fields).TrimEnd(',')));
}
return(sqlWrapper);
}
/// <summary>
/// Insert
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql打包对象</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Insert(MemberExpression expression, SqlWrapper sqlWrapper)
{
var objectArray = new List <object>();
var fields = new List <string>();
var obj = expression.ToObject();
if (obj.GetType().IsArray)
{
objectArray.AddRange(obj as object[]);
}
else if (obj.GetType().Name == "List`1")
{
objectArray.AddRange(obj as IEnumerable <object>);
}
else
{
objectArray.Add(obj);
}
for (var i = 0; i < objectArray.Count; i++)
{
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("(");
}
if (i > 0 && sqlWrapper.DatabaseType == DatabaseType.Oracle)
{
sqlWrapper.Append(" UNION ALL SELECT ");
}
var properties = objectArray[i]?.GetType().GetProperties();
foreach (var p in properties)
{
var type = p.DeclaringType.ToString().Contains("AnonymousType") ?
sqlWrapper.DefaultType :
p.DeclaringType;
var(columnName, isInsert, isUpdate) = sqlWrapper.GetColumnInfo(type, p);
if (isInsert)
{
var value = p.GetValue(objectArray[i], null);
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper.AddDbParameter(value);
if (!fields.Contains(columnName))
{
fields.Add(columnName);
}
sqlWrapper += ",";
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("),");
}
else
{
sqlWrapper.Append(" FROM DUAL");
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
}
sqlWrapper.Reset(string.Format(sqlWrapper.ToString(), string.Join(",", fields).TrimEnd(',')));
return(sqlWrapper);
}
/// <summary>
/// Insert
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Insert(MemberExpression expression, SqlWrapper sqlWrapper)
{
var objectArray = new List <object>();
var fields = new List <string>();
var convertRes = expression.ToObject();
if (convertRes.IsNull())
{
return(sqlWrapper);
}
if (!convertRes.GetType().IsDictionaryType() &&
convertRes is IEnumerable collection)
{
foreach (var item in collection)
{
objectArray.Add(item);
}
}
else
{
objectArray.Add(convertRes);
}
for (var i = 0; i < objectArray.Count; i++)
{
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("(");
}
if (i > 0 && sqlWrapper.DatabaseType == DatabaseType.Oracle)
{
sqlWrapper.Append(" UNION ALL SELECT ");
}
var objectType = objectArray[i]?.GetType();
var isDictionaryType = objectType.IsDictionaryType();
PropertyInfo[] properties;
IDictionary <string, object> objectDic = null;
if (!isDictionaryType)
{
properties = objectType?.GetProperties();
}
else
{
properties = sqlWrapper.DefaultType.GetProperties();
objectDic = objectArray[i] as IDictionary <string, object>;
}
foreach (var property in properties)
{
if (isDictionaryType && !objectDic.Any(x => x.Key.EqualIgnoreCase(property.Name)))
{
continue;
}
var type = property.DeclaringType.IsAnonymousType() || isDictionaryType ?
sqlWrapper.DefaultType :
property.DeclaringType;
var columnInfo = sqlWrapper.GetColumnInfo(type, property);
if (columnInfo.IsInsert)
{
object value;
if (isDictionaryType)
{
value = objectDic.FirstOrDefault(x => x.Key.EqualIgnoreCase(property.Name)).Value;
}
else
{
value = property.GetValue(objectArray[i], null);
}
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper.AddDbParameter(value, columnInfo.DataType);
if (!fields.Contains(columnInfo.ColumnName))
{
fields.Add(columnInfo.ColumnName);
}
sqlWrapper += ",";
}
}
}
if (sqlWrapper[sqlWrapper.Length - 1] == ',')
{
sqlWrapper.Remove(sqlWrapper.Length - 1, 1);
if (sqlWrapper.DatabaseType != DatabaseType.Oracle)
{
sqlWrapper.Append("),");
}
else
{
sqlWrapper.Append(" FROM DUAL");
}
}
}
sqlWrapper.RemoveLast(',');
sqlWrapper.Reset(string.Format(sqlWrapper.ToString(), string.Join(",", fields).TrimEnd(',')));
return(sqlWrapper);
}
/// <summary>
/// Update
/// </summary>
/// <param name="expression">表达式树</param>
/// <param name="sqlWrapper">sql包装器</param>
/// <returns>SqlWrapper</returns>
public override SqlWrapper Update(MemberExpression expression, SqlWrapper sqlWrapper)
{
var convertRes = expression.ToObject();
if (convertRes.IsNull())
{
return(sqlWrapper);
}
var convertType = convertRes?.GetType();
var isDictionaryType = convertType.IsDictionaryType();
PropertyInfo[] properties;
IDictionary <string, object> convertDic = null;
if (!isDictionaryType)
{
properties = convertType?.GetProperties();
}
else
{
properties = sqlWrapper.DefaultType.GetProperties();
convertDic = convertRes as IDictionary <string, object>;
}
if (properties.IsNotNullOrEmpty())
{
foreach (var item in properties)
{
if (isDictionaryType && !convertDic.Any(x => x.Key.EqualIgnoreCase(item.Name)))
{
continue;
}
var type = item.DeclaringType.IsAnonymousType() || isDictionaryType ?
sqlWrapper.DefaultType :
item.DeclaringType;
var columnInfo = sqlWrapper.GetColumnInfo(type, item);
if (columnInfo.IsUpdate)
{
object value;
if (isDictionaryType)
{
value = convertDic.FirstOrDefault(x => x.Key.EqualIgnoreCase(item.Name)).Value;
}
else
{
value = item.GetValue(convertRes, null);
}
if (value != null || (sqlWrapper.IsEnableNullValue && value == null))
{
sqlWrapper += columnInfo.ColumnName + " = ";
sqlWrapper.AddDbParameter(value, columnInfo.DataType);
sqlWrapper += ",";
}
}
}
}
sqlWrapper.RemoveLast(',');
return(sqlWrapper);
}
