updating array in firestore error : AttributeError: 'list' object has no attribute 'items' with Python

Question

I am trying to update my Firestore collection with a list of strings from python.

My list:

results = ['link1','link2']

My Firestore document is 01 Collection in document is as follow:

links (map) ----> List_of_all_links (array)----> this list should have 2 strings 0:link1 1:link2

SINCE i am coding using python, I added this :

db.collection(u'myjob').document(u'01').update(results)

Error: AttributeError: 'list' object has no attribute 'items'

For now, I have the map and the array in my firestore but without strings. Any help ?

JM Gelilio · Accepted Answer · 2021-09-20 08:31:48Z

1

For you to update your array elements you need to use arrayUnion() to add data and arrayRemove() to remove the previous data. For example:

old_results = ['link1','link2']
new_results = ['link3','link4']

links_ref = db.collection(u'myjob').document(u'01')
# Add new data from array links
links_ref.update({u'links': firestore.ArrayUnion(new_results)})

# Remove old data from array links
links_ref.update({u'links': firestore.ArrayRemove(old_results)})

answered Sep 20, 2021 at 8:31

JM Gelilio

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