private void ResolveFrom(StringBuilder sqlBuilder, IQueryParameters parameters)
{
var first = _queryBody.JoinDescriptors.First();
if (_queryBody.JoinDescriptors.Count == 1)
{
sqlBuilder.AppendFormat(" {0}{1} ", first.EntityDescriptor.SqlAdapter.Database, _sqlAdapter.AppendQuote(first.TableName));
return;
}
sqlBuilder.AppendFormat(" {0}{1} AS {2} ", first.EntityDescriptor.SqlAdapter.Database, _sqlAdapter.AppendQuote(first.TableName), _sqlAdapter.AppendQuote(first.Alias));
for (var i = 1; i < _queryBody.JoinDescriptors.Count; i++)
{
var descriptor = _queryBody.JoinDescriptors[i];
switch (descriptor.Type)
{
case JoinType.Inner:
sqlBuilder.Append(" INNER ");
break;
case JoinType.Right:
sqlBuilder.Append(" RIGHT ");
break;
default:
sqlBuilder.Append(" LEFT ");
break;
}
sqlBuilder.AppendFormat("JOIN {0}{1} AS {2} ON ", descriptor.EntityDescriptor.SqlAdapter.Database, _sqlAdapter.AppendQuote(descriptor.TableName), _sqlAdapter.AppendQuote(descriptor.Alias));
sqlBuilder.Append(_resolver.Resolve(descriptor.On, parameters));
}
}
private void ResolveFrom(StringBuilder sqlBuilder, IQueryParameters parameters)
{
var first = _queryBody.JoinDescriptors.First();
if (_queryBody.JoinDescriptors.Count == 1)
{
sqlBuilder.AppendFormat(" {0} ", GetTableName(first.TableName));
//附加NOLOCK特性
if (_sqlAdapter.SqlDialect == SqlDialect.SqlServer && first.NoLock)
{
sqlBuilder.Append("WITH (NOLOCK) ");
}
return;
}
sqlBuilder.AppendFormat(" {0} AS {1} ", GetTableName(first.TableName), _sqlAdapter.AppendQuote(first.Alias));
//附加NOLOCK特性
if (_sqlAdapter.SqlDialect == SqlDialect.SqlServer && first.NoLock)
{
sqlBuilder.Append("WITH (NOLOCK) ");
}
for (var i = 1; i < _queryBody.JoinDescriptors.Count; i++)
{
var descriptor = _queryBody.JoinDescriptors[i];
switch (descriptor.Type)
{
case JoinType.Inner:
sqlBuilder.Append(" INNER ");
break;
case JoinType.Right:
sqlBuilder.Append(" RIGHT ");
break;
default:
sqlBuilder.Append(" LEFT ");
break;
}
sqlBuilder.AppendFormat("JOIN {0} AS {1} ", GetTableName(descriptor.TableName, descriptor.EntityDescriptor.SqlAdapter.Database), _sqlAdapter.AppendQuote(descriptor.Alias));
//附加NOLOCK特性
if (_sqlAdapter.SqlDialect == SqlDialect.SqlServer && first.NoLock)
{
sqlBuilder.Append("WITH (NOLOCK) ");
}
sqlBuilder.Append("ON ");
sqlBuilder.Append(_resolver.Resolve(descriptor.On, parameters));
}
}
protected override object GetValue(LogPacket p)
{
DataNode node = p.Frame.Root.SelectSingleNode(SelectionPath);
if (node == null)
{
node = new StringDataValue("", "");
}
if (FormatExpression.IsValid)
{
ExpressionResolver _resolver = new ExpressionResolver(typeof(LogPacket));
Dictionary <string, object> extras = new Dictionary <string, object>();
extras["value"] = node;
try
{
return(_resolver.Resolve(p, _formatExpression, extras) ?? String.Empty);
}
catch (Exception)
{
return(String.Empty);
}
}
else
{
return(RawValue ? node.Value : node);
}
}
public void TestObjectArrayToConstNullCompare()
{
MEFUtilities.Compose(new TypeHandlerCache());
Expression <Func <SourceType2, bool> > lambaExpr = (s) => s.jets[0] == null;
GeneratedCode gc = new GeneratedCode();
CodeContext cc = new CodeContext();
var result = ExpressionResolver.Resolve(lambaExpr.Body, gc, cc, MEFUtilities.MEFContainer);
}
internal void QueryByPrimaryKey(Expression <Func <TEntity, bool> > expression)
{
expression.ThrowIfNull(nameof(expression));
var expressionTree = ExpressionResolver.Resolve((dynamic)expression.Body, EntityIdName);
Build(expressionTree);
}
internal void ResolveQuery(Expression <Func <TEntity, bool> > expression)
{
expression.ThrowIfNull(nameof(expression));
var expressionTree = ExpressionResolver.Resolve((dynamic)expression.Body);
And();
Build(expressionTree);
}
/// <summary>
/// 初始化实体文本框
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="helper">HtmlHelper</param>
public EntityTextBox(Expression <Func <TEntity, TProperty> > expression, HtmlHelper <TEntity> helper)
{
if (helper != null)
{
_value = helper.Value(expression);
}
_expression = expression;
Init();
ExpressionResolver <ITextBox, TEntity, TProperty> .Resolve(this, expression);
}
/// <summary>
/// 初始化实体组合框
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="helper">HtmlHelper</param>
public EntityCombox(Expression <Func <TEntity, TProperty> > expression, HtmlHelper <TEntity> helper)
{
if (helper != null)
{
_value = helper.Value(expression);
}
_expression = expression;
_memberInfo = Lambda.GetMember(_expression);
Init();
ExpressionResolver <ICombox, TEntity, TProperty> .Resolve(this, expression);
}
/// <summary>
/// 初始化实体文本框
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="helper">HtmlHelper</param>
/// <param name="isEdit">是否允许编辑</param>
public EntityDataGridColumn(Expression <Func <TEntity, TProperty> > expression, HtmlHelper <TEntity> helper, bool isEdit)
: base(isEdit)
{
if (helper != null)
{
_metadata = ModelMetadata.FromLambdaExpression(expression, helper.ViewData);
}
_expression = expression;
_memberInfo = Lambda.GetMember(_expression);
Init();
ExpressionResolver <IDataGridColumn, TEntity, TProperty> .Resolve(this, expression);
}
/// <summary>
/// 初始化实体组合框
/// </summary>
/// <param name="expression">属性表达式</param>
/// <param name="helper">HtmlHelper</param>
/// <param name="id">控件Id</param>
/// <param name="url">远程Url</param>
public EntityCombox(Expression <Func <TEntity, TProperty> > expression, HtmlHelper <TEntity> helper, string id, string url)
{
if (helper != null)
{
_value = helper.Value(expression);
}
if (!id.IsEmpty())
{
Id(id);
}
Load(url);
_expression = expression;
_memberInfo = Lambda.GetMember(_expression);
Init();
ExpressionResolver <ICombox, TEntity, TProperty> .Resolve(this, expression);
}
public void TestObjectArrayCompare()
{
MEFUtilities.Compose(new TypeHandlerCache());
Expression <Func <SourceType2, int, int, bool> > lambaExpr = (s, a1, a2) => s.jets[a1] == s.jets[a2];
GeneratedCode gc = new GeneratedCode();
CodeContext cc = new CodeContext();
var result = ExpressionResolver.Resolve(lambaExpr.Body, gc, cc, MEFUtilities.MEFContainer);
Assert.IsInstanceOfType(result, typeof(BinaryExpression), "Expression type");
Assert.AreEqual(ExpressionType.Equal, result.NodeType, "Expected an equal");
var b = result as BinaryExpression;
Assert.IsInstanceOfType(b.Left, typeof(ParameterExpression), "Left expr");
Assert.IsInstanceOfType(b.Right, typeof(ParameterExpression), "Right expr");
var r = b.Right as ParameterExpression;
var l = b.Left as ParameterExpression;
Assert.AreEqual("a1", l.Name, "Left paramter name");
Assert.AreEqual("a2", r.Name, "Right paramter name");
}
public void TestObjectArrayCompareNENull()
{
MEFUtilities.Compose(new TypeHandlerCache());
Expression <Func <SourceType2, int, int, bool> > lambaExpr = (s, a1, a2) => s.jets[a1] != null;
GeneratedCode gc = new GeneratedCode();
CodeContext cc = new CodeContext();
var result = ExpressionResolver.Resolve(lambaExpr.Body, gc, cc, MEFUtilities.MEFContainer);
Assert.IsInstanceOfType(result, typeof(BinaryExpression), "Expression type");
Assert.AreEqual(ExpressionType.NotEqual, result.NodeType, "Expected an not equal");
var b = result as BinaryExpression;
Assert.IsInstanceOfType(b.Left, typeof(ParameterExpression), "Left expr");
Assert.IsInstanceOfType(b.Right, typeof(ConstantExpression), "Right expr");
var r = b.Right as ParameterExpression;
var l = b.Left as ConstantExpression;
//Assert.Inconclusive("Do we want to allow the user to write this - what does it mean??");
// The way this get coded up is pretty harmless. So I guess we let it go...
}
public void EmptyTest()
{
var expressions = resolver.Resolve("");
Assert.Empty(expressions);
}
private void ResolveFrom(StringBuilder sqlBuilder, IQueryParameters parameters)
{
var first = _queryBody.JoinDescriptors.First();
if (_queryBody.JoinDescriptors.Count == 1)
{
sqlBuilder.AppendFormat(" {0} ", GetTableName(first.TableName));
//附加NOLOCK特性
if (_sqlAdapter.SqlDialect == SqlDialect.SqlServer && first.NoLock)
{
sqlBuilder.Append("WITH (NOLOCK) ");
}
return;
}
sqlBuilder.AppendFormat(" {0} AS {1} ", GetTableName(first.TableName), _sqlAdapter.AppendQuote(first.Alias));
//附加NOLOCK特性
if (_sqlAdapter.SqlDialect == SqlDialect.SqlServer && first.NoLock)
{
sqlBuilder.Append("WITH (NOLOCK) ");
}
for (var i = 1; i < _queryBody.JoinDescriptors.Count; i++)
{
var descriptor = _queryBody.JoinDescriptors[i];
switch (descriptor.Type)
{
case JoinType.Inner:
sqlBuilder.Append(" INNER ");
break;
case JoinType.Right:
sqlBuilder.Append(" RIGHT ");
break;
default:
sqlBuilder.Append(" LEFT ");
break;
}
var alias = _sqlAdapter.AppendQuote(descriptor.Alias);
sqlBuilder.AppendFormat("JOIN {0} AS {1} ", GetTableName(descriptor.TableName, descriptor.EntityDescriptor.SqlAdapter.Database), _sqlAdapter.AppendQuote(descriptor.Alias));
//附加NOLOCK特性
if (_sqlAdapter.SqlDialect == SqlDialect.SqlServer && first.NoLock)
{
sqlBuilder.Append("WITH (NOLOCK) ");
}
sqlBuilder.Append("ON ");
sqlBuilder.Append(_resolver.Resolve(descriptor.On, parameters));
//过滤软删除
if (_queryBody.FilterDeleted && descriptor.EntityDescriptor.SoftDelete)
{
var val = _sqlAdapter.SqlDialect == SqlDialect.PostgreSQL ? "FALSE" : "0";
sqlBuilder.AppendFormat(" AND {0}.{1}={2} ", alias, _sqlAdapter.AppendQuote(descriptor.EntityDescriptor.GetDeletedColumnName()), val);
}
//添加租户过滤
if (_queryBody.FilterTenant && descriptor.EntityDescriptor.IsTenant)
{
var x1 = _sqlAdapter.AppendQuote(DbConstants.TENANT_COLUMN_NAME);
var tenantId = _dbContext.LoginInfo.TenantId;
if (tenantId == null)
{
sqlBuilder.AppendFormat(" AND {0}.{1} IS NULL ", alias, x1);
}
else
{
sqlBuilder.AppendFormat(" AND {0}.{1}='{2}' ", alias, x1, tenantId);
}
}
}
}
