update a nested object in Elasticsearch - elasticsearch

Question

i hope i can find some help
my problem is that i am triying to update a nasted object that i have.
here 's my index architecture
{
"grille_badge" : {
"mappings" : {
"properties" : {
"theme" : {
"type" : "nested",
"properties" : {
"categories" : {
"type" : "nested",
"properties" : {
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"niveaux" : {
"type" : "nested",
"properties" : {
"grille_defis" : {
"type" : "nested",
"properties" : {
"defis" : {
"type" : "nested",
"properties" : {
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
},
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
},
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
}
}
},
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
}
}
}
}
}
and here is exemple of my document that i wand to edit
{
"_index" : "grille_badge",
"_type" : "_doc",
"_id" : "1",
"_version" : 1,
"_seq_no" : 0,
"_primary_term" : 1,
"found" : true,
"_source" : {
"theme" : [
{
"name" : "foot",
"categories" : [
{
"name" : "categorie1",
"niveaux" : [
{
"name" : "bronze",
"grille_defis" : [
{
"name" : "grille1",
"defis" : [ ]
}
]
}
]
},
{
"name" : "categorie2",
"niveaux" : [
{
"name" : "argent",
"grille_defis" : [
{
"name" : "grille1",
"defis" : [ ]
}
]
}
]
},
{
"name" : "categorie3",
"niveaux" : [
{
"name" : "or",
"grille_defis" : [
{
"name" : "grille1",
"defis" : [ ]
}
]
}
]
}
]
}
]
}
}
And i am triying to add a Defis to my empty list, like the code below that i found in the documentation
POST index_name/_update/doc_id
{
"script": {
"source": "ctx._source.cats.add(params.cat)",
"params": {
"cat": {
"colors": 4,
"name": "Leon",
"breed": "Persian"
}
}
}
}
i tried to make my own script that can go deep into my defis list but still don't know how to do it.
here's what i tried to do
POST grille_badge/_update/1
{
"script": {
"source": "def theme_target = ctx._source.theme.findAll(our_theme theme.name == params.current_theme); def categorie_target = theme_target.findAll(our_categorie categories.name == params.current_categorie); def niveau_target = categorie_target.findAll(our_niveau niveaux.name == params.current_niveau); def grille_target = niveau_target.findAll(our_grille grille_defis.name == params.current_grille); grille_target.defis.add(params.defis_ajouter)",
"params": {
"current_theme": "foot",
"current_categorie": "categorie1",
"current_niveau": "niveau1",
"current_grille": "grille1",
"defis_ajouter": "i am a defis"
}
}
}
please could anyone help me !!
thanks for advance

Answer 1

Welcome to SO. Your question is quite confusing but here's how you update a doc by a script where your params are an instance of HashMap:
Index the original document w/ an id of 1 -- collapsed for brevity:
POST grille_badge/_doc/1
{"theme":[{"name":"foot","categories":[{"name":"categorie1","niveaux":[{"name":"bronze","grille_defis":[{"name":"grille1","defis":[]}]}]},{"name":"categorie2","niveaux":[{"name":"argent","grille_defis":[{"name":"grille1","defis":[]}]}]},{"name":"categorie3","niveaux":[{"name":"or","grille_defis":[{"name":"grille1","defis":[]}]}]}]}]}
Update doc#1 (note that you can also use a wide-ranging _update_by_query too). Also note that you need to verify whether cats exist before add-ing a hashmap in there.
POST grille_badge/_update/1
{
"script": {
"source": "if (ctx._source.cats instanceof List) { ctx._source.cats.add(params.cat) } else { ctx._source.cats = [params.cat] }",
"params": {
"cat": {
"colors": 4,
"name": "Leon",
"breed": "Persian"
}
}
}
}
Verify that cats are there:
GET grille_badge/_search
EDIT & ELABORATION
Here's how you do it:
POST grille_badge/_update/1
{
"script": {
"source": """
def theme_target = ctx._source.theme.find(theme -> theme.name == params.current_theme);
def categorie_target = theme_target.categories.find(categories -> categories.name == params.current_categorie);
def niveau_target = categorie_target.niveaux.find(niveaux -> niveaux.name == params.current_niveau);
def grille_target = niveau_target.grille_defis.find(grille_defis -> grille_defis.name == params.current_grille);
grille_target['defis'].add(["name" : params['defis_ajouter']]);
""",
"params": {
"current_theme": "foot",
"current_categorie": "categorie1",
"current_niveau": "bronze",
"current_grille": "grille1",
"defis_ajouter": "i am a defis"
}
}
}
Note the proper arrow notation in the findAll methods.
Also note that your own mapping defined the innermost defis as a nested array of key-value pairs -- this means you cannot push a plain string using the .add method -- you need to use a HashMap. You instatiate one with the one liner ["your_key" : "your_value"]. Good luck.