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AlexP

Hello,

The field type, as well as the Entity Key attribute is determined from the database, you should determine the behavior for generating keys in the model by yourself by selecting the generator type using the IdGenerator property

AlexP

Hello,

Please describe in more details the behavior you want to implement?

AlexP

Hello,

Yes, each table in the model should have a key field.

AlexP

Hello,

Support for Enum types is added to our roadmap, but we can't tell the exact time frame for its implementation.

AlexP

For this, you can check the exception class

Code: Select all

uses ..., PgErrorUni;

...

procedure TForm1.UniConnection1Error(Sender: TObject; E: EDAError;
  var Fail: Boolean);
begin
  if E is EPgError then
...

AlexP

Hello,

You should use the UniConnection.OnError event

and to handle the exception set the Fail parameter to False;

AlexP

You can specify a sign of uniqueness in PropertyEditor -> Unique = True

AlexP

You are welcome. Feel free to contact us if you have any further questions.

AlexP

You should also call the Save method

Code: Select all

context.Attach(d);
context.Save(d);

AlexP

The provided code does not cause the specified error, please, send us your model and Delphi code to support*devart*com

AlexP

Hello,

Please, specify the exact EntityDAC version, DB name and EntityProvider which you are using

AlexP

Hello,

You cannot use Null as the lCondition condition. Null can be used as the condition operand, i.e.

Code: Select all

FDatabase.Context['Work']['JobDate'] = Null.

In this case, a correct query will be created.

If you want to use your code and not to set conditions (select all records) you should specify the condition as follows:

Code: Select all

lCondition := 1 = 1;

AlexP

Hello,

We could not reproduce the error when replacing UniDAC with EntityDAC.
Please, send us a complete server sample to support*devart*com, also specify IDE and our components versions.

AlexP

Hello,

This property is not used in EntityDAC, you can set a name in the DisplayLabel property in the field editor in Delphi manually.

AlexP

Hello,

Yes, you can use our UniDAC to work with ODBC drivers for Linux.

P.S. In addition, you can also use our ODBC drivers: https://www.devart.com/odbc/

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