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node loopback updateAll update property with another property value


node loopback updateAll update property with another property value

By : HardToKill
Date : November 21 2020, 04:01 AM
hop of those help? LoopBack does not supports updates where one property receives a value read from the database and/or other properties in the update command.
If you are using an SQL database, then you can run an SQL query directly.
code :
Model.dataSource.connector.execute(
  'UPDATE Model SET Qty=?, QtyCancelled=Qty WHERE Status = "Cancel"',
  [0],
  function (err, info) {
    // ...
  });


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Referencing a property on a model with node.js in Loopback

Referencing a property on a model with node.js in Loopback


By : Hammerer
Date : March 29 2020, 07:55 AM
this will help Trying to very reference a property in with loopback and considering how much time I have tried to do this, I am clearly missing some fundamental concept. , You are almost there. Use context object that you get on after save.
code :
module.exports = function(Question) {
  Question.observe('after save', function(ctx, next) {
    console.log(ctx.instance.points);
    next();
  });
};
How iterate all Property of a node and update the value of each property and save in repository in cq5

How iterate all Property of a node and update the value of each property and save in repository in cq5


By : tanish
Date : March 29 2020, 07:55 AM
this will help You can use PropertyIterator to iterate through all the properties, setProperty() method of node api to set the new value and jcr session to persist the value to get this done. Sample code:
code :
PropertyIterator propertyIterator = pageFourNew.getProperties();
while (propertyIterator.hasNext()) {
    Property property = propertyIterator.nextProperty();
    pageFourNew.setProperty(property.getName(),
        property.getValue().getString() + "");
jcrSession.save();}
particular property will update only the admin is login in loopback nodejs

particular property will update only the admin is login in loopback nodejs


By : cmcc871
Date : March 29 2020, 07:55 AM
hope this fix your issue You can add validations in loopback models . Take a look at the below link for validations https://loopback.io/doc/en/lb2/Validating-model-data.html
In your case this can be handled in 2 different cases.
Node.js Loopback : TypeError: Cannot read property 'createModel' of undefined

Node.js Loopback : TypeError: Cannot read property 'createModel' of undefined


By : Mike Cop
Date : March 29 2020, 07:55 AM
will help you You have to move these set of code to below app.start(), because when you declare an options, app haven't initialize yet, so undefined object was assigned at that stage.
code :
// OATH2
var options = {
     dataSource: app.dataSources.db, // Data source for oAuth2 metadata persistence
     loginPage: '/login', // The login page URL
     loginPath: '/login' // The login form processing URL
};

oauth2.oAuth2Provider(
     app, // The app instance
     options // The options
 );
Loopback Update property Array of Object

Loopback Update property Array of Object


By : Tommaso Lintrami
Date : March 29 2020, 07:55 AM
hop of those help? In mongo CLI, you can use $ (positional) to update matching element from an embedded array document
update
code :
> db.colors.update({"colors.colorId" :"2"}, {$set : {"colors.$.colorName" : "Green"}})
> db.colors.update({}, {$pull : {"colors" : {"colorId" : "2"}}})
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