Missing relation btw records in Many 2 many tables

Help me!
6

Thanks.

As it looks like you have multiple belongsToMany on models.taskOutlines, I wonder how it can work properly without aliases (ie as attribute) to distinguish both relationships on a similar model.

Could you try the code below in ProcessOutlines model to see if it fixes your issue?

ProcessOutlines.belongsToMany(models.taskOutlines, {
  through: 'processOutlinesChildTaskOutlines',
  foreignKey: 'process_outline_id',
  otherKey: 'child_task_outline_id',
+ as: 'aliasOfFirstRelationship' // NOTICE: use a business oriented alias
});
 ProcessOutlines.belongsToMany(models.taskOutlines, {
  through: 'processOutlinesParentTaskOutlines',
  foreignKey: 'process_outline_id',
  otherKey: 'parent_task_outline_id',
+ as: 'aliasOfSecondRelationship' // NOTICE: use a business oriented alias
});

And try the same in TaskOutlines models?

TaskOutlines.belongsToMany(models.processOutlines, {
  through: 'processOutlinesChildTaskOutlines',
  foreignKey: 'child_task_outline_id',
  otherKey: 'process_outline_id',
+ as: 'aliasOfFirstRelationship' // NOTICE: use a business oriented alias
});
TaskOutlines.belongsToMany(models.processOutlines, {
  through: 'processOutlinesParentTaskOutlines',
  foreignKey: 'parent_task_outline_id',
  otherKey: 'process_outline_id',
+ as: 'aliasOfSecondRelationship' // NOTICE: use a business oriented alias
});