Support clearing fields

[danielmarbach]

Addressed #69

[leonsteinhaeuser]

LGTM

Have you already tested this?

[danielmarbach]

I didn't have time before my vacation. I'm mostly offline until beginning of August

[leonsteinhaeuser]

No problem. Enjoy your vacation. I will take responsibility for the tests.

[leonsteinhaeuser]

@danielmarbach I am sorry it has taken so long. I have been very busy the last few months. I finally had some time to test this and unfortunately the test with the "Date" field does not work as expected.

See (output for: test_user.sh):

"Date": PVTF_lAHOAoeKQc2PEc4ADXso
Updating date field: "Date" with value: null
{errors:[{extensions:{value:null,problems:[{path:[],explanation:Could not coerce value 
ull\ to Date}]},locations:[{line:6,column:9}],message:Variable $fieldValue of type Date! was provided invalid value}]}

[danielmarbach]

It sounds like it doesn't execute the clear but tries to assign null to the field value. I'm a but removed from this but I can try this give it another look at some point

[goldiegadde]

Is anyone still workign on this, a very useful feature to have

[danielmarbach]

Sorry no. Feel free to take it from here