Lightning components can't use inner classes as attribute type when the org has setup a namespace

Lightning components can't use inner classes as attribute type when the org has setup a namespace

Apex , Lightning

Last updated 2018-09-24 ·Reference W-3743520 ·Reported By 152 users

No Fix

Summary
When an aura attribute defined with type as Inner class in lightning component, it throws an error message "Invalid Definition" or it will throw internal salesforce error with Id "-227057212", when the org has a namespace.

The namespace is created from Apps->Package Manager (in Lightning).

Repro
1. Create an apex class with below code:

public class parentClass1{
public class childClass1{
}
}

2. Create a lightning component with below code:

<aura:component controller="parentClass1" implements="force:lightningQuickAction,force:hasRecordId">
<aura:attribute name="tlist" type="parentClass1.childClass1[]"/>
</aura:component>

3. Create a Lightning App and add the component (this issue can also be seen in lightning pages, quick actions etc)

4. Open the app in a new browser tab. No error seen.

5. Check if there is no namespace defined in the org by following below path in the Lightning setup page.
>> Setup --> Apps --> Package manager
Managed Package Namespace Prefix - should have a None value.

6. Now setup a namespace from that page by selecting the Edit button.
Managed Package Namespace Prefix - should have the new value.

7. Now try accessing the record from the Lightning app. Error is seen.
https://gus--c.gus.content.force.com/servlet/rtaImage?eid=a07B0000002tmMw&feoid=00NB0000000FiIs&refid=0EMB0000000PbZT

Workaround
Workaround 1:

Create an interface:

public interface ChildMarker {
// empty interface to allow for using inner class as component attributes.
}

and make the inner class implement it,

public class parentClass1{
public class childClass1 implements ChildMarker{
}
}

then this works,
<aura:attribute name="tlist" type="ChildMarker"/>
<aura:attribute name="tlist" type="ChildMarker[]"/>

Workaround 2:

Create the wrapper or child class as a separate top level class like below and you can use it in aura attribute.

public class parentClass1{

}

public class childClass1{

}

<aura:attribute name="tlist" type="childClass1"/>
<aura:attribute name="tlist" type="childClass1[]"/>

Reported By (152)

Janne Oksanen Hussein Akere Kanhaiya Yadav Jagan Challa Vlad Iasynskyi Ankita Patel Michael Getz Kelly Martin sai kiran Varun Chaddha Rajesh Varma Mudunuri Andrew Porter Laxmi Bandaru Kevin Hart Swayam Chouksey Amir Schariatmadary Omkar Kumar Kevin Houk John Thompson E.J. Wilburn Dave Alvaro Deepraj Bhushan Pranjal singh Matt U Baswaraj Patil Fusion Span Carlos Osorio Jesus Arcas System Administrator Pedro Molina Tamas Faludi Cristina Sanchez Alberto Contreras Agustin Jiménez Agustin Jimenez José Antonio Campaña Miguel Cabrera Aníbal García García Adolfo Contreras Alberto David Fernández Angel Luis Pinar Gustavo Ojeda Javier Labrat Pablo Rubio Sanchez Jose Luis Carmona Alba Azcona Gayadhri Lakshmanan John OLeary Stephen Khoo Arantxa Pascual Valero Kasia pcmt1 Sierzputowska Stephen Khoo CMT1 Florian Marx Nathan Bruhn John Hutchinson Shams Shamsuddin Troy Hoshor Tony White Wenbo Zhou Eric Meisel John Diaz Christopher Kalicki Nimesh Sharma Payal Mittal Stephen Hu Ansuman Patnaik Tejaram Nidamanuru Mariano Saint-Clair Rajendra Singh Nagar Praveen Kumar Clement Aubertin Ramon Medina Josh Hendrix Bertrand AGIER Binayak Mukherjee suvarna gavali David Roberts Nick Snyder Kenneth Bowman surya rudraraju Amit Sahu Nelson Acosta Jacob Huizenga Jiri Karpisek Ajinkya Phadnis Kevin Gunn Anthony B Darlene Shum Michael Minnekeer Michael Alderete Nicole McGuire Francisco Riccomagno Dennis Picht Cory Atchley Shantinath Patil Vishnuvardhan Reddy Manumachu Neha Gire Juan Pablo Sturla Mario Burdman Sean Wu Natacha Joseph Kurtis Alderman HARI KRISHNA Dorian Sutton Kaushikee Kumar Romit Ratan Shekhar Gawali CI User John Lewis CHAITHRA K N Sayanton Sadhu Jan Aertgeerts Jan Aertgeerts Filip Rafałowicz Ed Groenendaal Julien Ouellet RavikiranReddy Vuyyuru Naushad Rafique Jayant Das Suleman Zia Ravindra Gaikwad Ayush Shukla Manish Sajwan Ankush Dubey Dzmitry Maksimau Vishnu Kant Sharma - - Develop Team Pranay Jaiswal Pavel Slepenkov David Bond Sakshi Jhamb Simon Goodyear Srinivasaragavan Jayakumar Pramod Kumar veeranjaneyulu kunchala Mohamed Arif Rasheed Krupananda Reddy Mitchell Yang David Frye Jungo Dev Team Stuart Thomson James Brock Konrad Gadomski Callum MacErlich Matthew Aston morne coetzee Ron Wild Vikas Reddy Jason Talis Alexandr Luferov S Morgan Robertson

Is it Fixed?

AP0 AP3 AP4 AP5 AP6 AP7 AP8 AP9 AP14 AP15 AP20 AP21 AP22 AP28 CS1 CS2 CS3 CS4 CS5 CS6 CS7 CS8 CS9 CS10 CS109 CS108 CS107 CS106 CS105 CS102 CS101 CS100 CS115 CS110 CS11 CS116 CS12 CS137 CS138 CS13 CS14 CS15 CS152 CS151 CS16 CS17 CS18 CS19 CS20 CS21 CS22 CS23 CS24 CS25 CS26 CS27 CS28 CS29 CS30 CS31 CS32 CS33 CS34 CS35 CS36 CS37 CS40 CS41 CS42 CS43 CS44 CS45 CS47 CS50 CS51 CS52 CS53 CS54 CS57 CS58 CS59 CS60 CS61 CS62 CS63 CS64 CS65 CS66 CS67 CS68 CS69 CS70 CS71 CS72 CS73 CS74 CS75 CS76 CS77 CS78 CS79 CS80 CS81 CS82 CS83 CS84 CS85 CS86 CS87 CS88 CS89 CS90 CS91 CS92 CS93 CS94 CS95 CS96 CS97 CS98 CS99 EU7 EU8 EU9 EU10 EU12 EU13 EU14 EU15 EU16 EU17 EU18 EU19 EU25 EU26 NA104 NA100 NA101 NA103 NA102 NA105 NA129 NA130 NA132 NA131 NA146 NA155 NA196 NA21 NA32 NA33 NA37 NA39 NA40 NA42 NA44 NA45 NA46 NA47 NA49 NA50 NA51 NA52 NA53 NA54 NA56 NA57 NA58 NA59 NA60 NA61 NA62 NA63 NA64 NA65 NA66 NA67 NA68 NA69 NA70 NA71 NA72 NA73 NA74 NA75 NA76 NA77 NA78 NA79 NA80 NA81 NA82 NA83 NA84 NA85 NA86 NA87 NA88 NA89 NA90 NA91 NA92 NA93 NA94 NA95 NA96 NA97 NA98 NA99 UM1 UM2 UM3 UM4 UM5

Any unreleased services, features, statuses, or dates referenced in this or other public statements are not currently available and may not be delivered on time or at all. Customers who purchase our services should make their purchase decisions based upon features that are currently available.