Transportr | Free Public Transport Assistant without Ads | Stream Processing library
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Free Public Transport Assistant without Ads or Tracking
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QUESTION
I have this problem and I have no idea why it's not working. I have tried so many code changes but I still get the same error when I try to submit a form. It's a simple form to insert data to tomany tables in db. All tables accept data with no error but payment_agrement
table gives me this error:
SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (
kassemschool
.payment_agrements
, CONSTRAINTpayment_agrements_responisbleid_foreign
FOREIGN KEY (responsible_id
) REFERENCESpayment_agrements
(id
)) (SQL: insert intopayment_agrements
(frais_inscription
,payment_mois
,Assurance
,Garde
,Transport
,responsible_id
,updated_at
,created_at
) values (450, 550, 400, 200, 300, 154, 2019-11-16 19:47:39, 2019-11-16 19:47:39))
This is my controller:
...ANSWER
Answered 2019-Nov-16 at 20:22Looks like your foreign key constraint isn't setup correctly. From the look of the error you have setup payment_agrements.responsible_id
to point to payment_agrements.id
instead of responsibles.id
.
In the migration for that table, that field probably looks like this:
QUESTION
I am trying to save a location to geofire but not getting any response from console and in logs.
I have added the dependency in gradle files and created my database reference like this:
...ANSWER
Answered 2018-Jun-05 at 13:02Change your dependencies like below in app grandle:
QUESTION
I have a .json file that has the following structure.
...ANSWER
Answered 2017-Feb-24 at 06:47I think you can't directly deserialize it to DataTable, because a DataTable consist only of two dimensions. Row and Column, which won't allow you to represent something very complex. If you deserialize to a DataTable you will get one row per object. So if your object consists of properties which have 1 to many relation as well this can't be packed into one column.
I think a DataSet gives you one more dimension because you can store one DataTable per Object, which also can contain one row per subobject. How you can achieve this is written here:
Example:
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