MongoDB aggregation re-group deep nested array of objects - mongodb

Question

Good day all,
I need some help figuring out this aggregation issue. I have a document with nested arrays where I want to perform lookups on the nested array's values after which I want to restore the document to its original structure. see below:
[
{
"_id": "63c7fec2fe9afea23afdbcef",
"primary_language": "en",
"image_link": "avatar_image_linl",
"description": ["Some description text here"],
"source": "community",
"standard": "imperial",
"gender": "male",
"base_a": 47,
"base_w": 220,
"base_h": 71.65,
"status": "draft",
"date_created": "2023-01-18T14:14:26.201Z",
"product_plan": {
"p_len": 4,
"p_fre": 1,
"p_qua": 4,
"avg_len": 3583,
"total_wor": 16,
"total_exe": 128,
"plan": {
"field_we": 1,
"field_da": 1,
"field_ti": 1,
"field_rest_we": false,
"field_rest_da": false,
"product": {
"name": "W111",
"comment": {
"en": ""
},
"pro_diff": [
{
"itemID": 2,
"description": "Intermediate"
}
],
"pro_int": [
{
"itemID": 2,
"description": "Moderate"
}
],
"pro_dur": 3736,
"nbr_exe": 8,
"target_mus": [
{
"itemID": 1,
"description": "Adominorus"
},
{
"itemID": 16,
"description": "Tricerus"
},
{
"itemID": 5,
"description": "Chiwawak"
}
],
"target_are": [
{
"itemID": 1,
"description": "Adominorus"
},
{
"itemID": 4,
"description": "Chiwawak"
},
{
"itemID": 2,
"description": "Amanus"
}
],
"items": {
"itemid": 44,
"target_are": [
{
"itemID": 4,
"description": "Chiwawak"
}
],
"target_mus": [
{
"itemID": 5,
"description": "Chiwawak"
}
],
"nbr_ref": 4,
"int_rec": "06~10",
"type_rec": [
{
"itemID": 14,
"description": "Straight Set"
}
],
"tempo": "1-1-1-1",
"rest_time": 90,
"note": "",
"order": null,
"pro_dur": 520,
"_id": "63ca9b798d47745ae5589906",
"status": 0,
"pct_complete": 0,
"set": []
},
"isCustomName": false,
"status": 0,
"pct_complete": 0
},
"_id": "63ca95368d47745ae558985e"
},
"_id": "63c7fec2fe9afea23afdbcf0"
},
"title": "Short Title text here",
"itemID": "bodyfyme882212-1674051266.214",
"__v": 32
},
{
"_id": "63c7fec2fe9afea23afdbcef",
"primary_language": "en",
"image_link": "avatar_image_linl",
"description": ["Some description text here"],
"source": "community",
"standard": "imperial",
"gender": "male",
"base_a": 47,
"base_w": 220,
"base_h": 71.65,
"status": "draft",
"date_created": "2023-01-18T14:14:26.201Z",
"product_plan": {
"p_len": 4,
"p_fre": 1,
"p_qua": 4,
"avg_len": 3583,
"total_wor": 16,
"total_exe": 128,
"plan": {
"field_we": 1,
"field_da": 1,
"field_ti": 1,
"field_rest_we": false,
"field_rest_da": false,
"product": {
"name": "W111",
"comment": {
"en": ""
},
"pro_diff": [
{
"itemID": 2,
"description": "Intermediate"
}
],
"pro_int": [
{
"itemID": 2,
"description": "Moderate"
}
],
"pro_dur": 3736,
"nbr_exe": 8,
"target_mus": [
{
"itemID": 1,
"description": "Adominorus"
},
{
"itemID": 16,
"description": "Tricerus"
},
{
"itemID": 5,
"description": "Chiwawak"
}
],
"target_are": [
{
"itemID": 1,
"description": "Adominorus"
},
{
"itemID": 4,
"description": "Chiwawak"
},
{
"itemID": 2,
"description": "Amanus"
}
],
"items": {
"itemid": 339,
"target_are": [
{
"itemID": 4,
"description": "Chiwawak"
}
],
"target_mus": [
{
"itemID": 5,
"description": "Chiwawak"
}
],
"nbr_ref": 3,
"int_rec": "06~10",
"type_rec": [
{
"itemID": 14,
"description": "Straight Set"
}
],
"tempo": "1-1-1-1",
"rest_time": 90,
"note": "",
"order": null,
"pro_dur": 390,
"_id": "63ca9b798d47745ae5589907",
"status": 0,
"pct_complete": 0,
"set": []
},
"isCustomName": false,
"status": 0,
"pct_complete": 0
},
"_id": "63ca95368d47745ae558985e"
},
"_id": "63c7fec2fe9afea23afdbcf0"
},
"title": "Short Title text here",
"itemID": "bodyfyme882212-1674051266.214",
"__v": 32
},
{
"_id": "63c7fec2fe9afea23afdbcef",
"primary_language": "en",
"image_link": "avatar_image_linl",
"description": ["Some description text here"],
"source": "community",
"standard": "imperial",
"gender": "male",
"base_a": 47,
"base_w": 220,
"base_h": 71.65,
"status": "draft",
"date_created": "2023-01-18T14:14:26.201Z",
"product_plan": {
"p_len": 4,
"p_fre": 1,
"p_qua": 4,
"avg_len": 3583,
"total_wor": 16,
"total_exe": 128,
"plan": {
"field_we": 1,
"field_da": 2,
"field_ti": 1,
"field_rest_we": false,
"field_rest_da": false,
"product": {
"name": "W121",
"comment": {
"en": ""
},
"pro_diff": [
{
"itemID": 2,
"description": "Intermediate"
}
],
"pro_int": [
{
"itemID": 2,
"description": "Moderate"
}
],
"pro_dur": 2674,
"nbr_exe": 6,
"target_mus": [
{
"itemID": 9,
"description": "Lats"
},
{
"itemID": 10,
"description": "Lower Back"
},
{
"itemID": 11,
"description": "Middle Back"
}
],
"target_are": [
{
"itemID": 3,
"description": "Back"
}
],
"items": {
"itemid": 47,
"target_are": [
{
"itemID": 3,
"description": "Back"
}
],
"target_mus": [
{
"itemID": 10,
"description": "Lower Back"
}
],
"nbr_ref": 4,
"int_rec": "06~10",
"type_rec": [
{
"itemID": 14,
"description": "Straight Set"
}
],
"tempo": "1-1-1-1",
"rest_time": 90,
"note": "",
"order": null,
"pro_dur": 520,
"_id": "63caa1568d47745ae5589b25",
"status": 0,
"pct_complete": 0,
"set": []
},
"isCustomName": false,
"status": 0,
"pct_complete": 0
},
"_id": "63ca9b8e8d47745ae558994b"
},
"_id": "63c7fec2fe9afea23afdbcf0"
},
"title": "Short Title text here",
"itemID": "bodyfyme882212-1674051266.214",
"__v": 32
},
{
"_id": "63c7fec2fe9afea23afdbcef",
"primary_language": "en",
"image_link": "avatar_image_linl",
"description": ["Some description text here"],
"source": "community",
"standard": "imperial",
"gender": "male",
"base_a": 47,
"base_w": 220,
"base_h": 71.65,
"status": "draft",
"date_created": "2023-01-18T14:14:26.201Z",
"product_plan": {
"p_len": 4,
"p_fre": 1,
"p_qua": 4,
"avg_len": 3583,
"total_wor": 16,
"total_exe": 128,
"plan": {
"field_we": 1,
"field_da": 2,
"field_ti": 1,
"field_rest_we": false,
"field_rest_da": false,
"product": {
"name": "W121",
"comment": {
"en": ""
},
"pro_diff": [
{
"itemID": 2,
"description": "Intermediate"
}
],
"pro_int": [
{
"itemID": 2,
"description": "Moderate"
}
],
"pro_dur": 2674,
"nbr_exe": 6,
"target_mus": [
{
"itemID": 9,
"description": "Lats"
},
{
"itemID": 10,
"description": "Lower Back"
},
{
"itemID": 11,
"description": "Middle Back"
}
],
"target_are": [
{
"itemID": 3,
"description": "Back"
}
],
"items": {
"itemid": 495,
"target_are": [
{
"itemID": 3,
"description": "Back"
}
],
"target_mus": [
{
"itemID": 11,
"description": "Middle Back"
}
],
"nbr_ref": 3,
"int_rec": "10~12",
"type_rec": [
{
"itemID": 14,
"description": "Straight Set"
}
],
"tempo": "1-1-1-1",
"rest_time": 90,
"note": "",
"order": null,
"pro_dur": 414,
"_id": "63caa1568d47745ae5589b26",
"status": 0,
"pct_complete": 0,
"set": []
},
"isCustomName": false,
"status": 0,
"pct_complete": 0
},
"_id": "63ca9b8e8d47745ae558994b"
},
"_id": "63c7fec2fe9afea23afdbcf0"
},
"title": "Short Title text here",
"itemID": "bodyfyme882212-1674051266.214",
"__v": 32
},
{
......
}
]
Now i want to get the document back to this structure using aggregation.
{
"_id": "63c7fec2fe9afea23afdbcef",
"primary_language": "en",
"image_link": "avatar_image_linl",
"description": ["Some description text here"],
"source": "community",
"standard": "imperial",
"gender": "male",
"base_a": 47,
"base_w": 220,
"base_h": 71.65,
"status": "draft",
"date_created": "2023-01-18T14:14:26.201Z",
"product_plan": {
"p_len": 4,
"p_fre": 1,
"p_qua": 4,
"avg_len": 3583,
"total_wor": 16,
"total_exe": 128,
// Group plan here by product_plan._id
"plan": [
{
"field_we": 1,
"field_da": 1,
"field_ti": 1,
"field_rest_we": false,
"field_rest_da": false,
"product": {
"name": "W111",
"comment": {
"en": ""
},
"pro_diff": [
{
"itemID": 2,
"description": "Intermediate"
}
],
"pro_int": [
{
"itemID": 2,
"description": "Moderate"
}
],
"pro_dur": 3736,
"nbr_exe": 8,
"target_mus": [
{
"itemID": 1,
"description": "Adominorus"
},
{
"itemID": 16,
"description": "Tricerus"
},
{
"itemID": 5,
"description": "Chiwawak"
}
],
"target_are": [
{
"itemID": 1,
"description": "Adominorus"
},
{
"itemID": 4,
"description": "Chiwawak"
},
{
"itemID": 2,
"description": "Amanus"
}
],
// group items by plan._id
"items": [
{
"itemid": 44,
"target_are": [
{
"itemID": 4,
"description": "Chiwawak"
}
],
"target_mus": [
{
"itemID": 5,
"description": "Chiwawak"
}
],
"nbr_ref": 4,
"int_rec": "06~10",
"type_rec": [
{
"itemID": 14,
"description": "Straight Set"
}
],
"tempo": "1-1-1-1",
"rest_time": 90,
"note": "",
"order": null,
"pro_dur": 520,
"_id": "63ca9b798d47745ae5589906",
"status": 0,
"pct_complete": 0,
"set": []
},
{
"itemid": 339,
"target_are": [
{
"itemID": 4,
"description": "Chiwawak"
}
],
"target_mus": [
{
"itemID": 5,
"description": "Chiwawak"
}
],
"nbr_ref": 3,
"int_rec": "06~10",
"type_rec": [
{
"itemID": 14,
"description": "Straight Set"
}
],
"tempo": "1-1-1-1",
"rest_time": 90,
"note": "",
"order": null,
"pro_dur": 390,
"_id": "63ca9b798d47745ae5589907",
"status": 0,
"pct_complete": 0,
"set": []
},
],
"isCustomName": false,
"status": 0,
"pct_complete": 0
},
"_id": "63ca95368d47745ae558985e"
},
{
"field_we": 1,
"field_da": 2,
"field_ti": 1,
"field_rest_we": false,
"field_rest_da": false,
"product": {
"name": "W121",
"comment": {
"en": ""
},
"pro_diff": [
{
"itemID": 2,
"description": "Intermediate"
}
],
"pro_int": [
{
"itemID": 2,
"description": "Moderate"
}
],
"pro_dur": 2674,
"nbr_exe": 6,
"target_mus": [
{
"itemID": 9,
"description": "Lats"
},
{
"itemID": 10,
"description": "Lower Back"
},
{
"itemID": 11,
"description": "Middle Back"
}
],
"target_are": [
{
"itemID": 3,
"description": "Back"
}
],
// group items by plan._id
"items": [
{
"itemid": 47,
"target_are": [
{
"itemID": 3,
"description": "Back"
}
],
"target_mus": [
{
"itemID": 10,
"description": "Lower Back"
}
],
"nbr_ref": 4,
"int_rec": "06~10",
"type_rec": [
{
"itemID": 14,
"description": "Straight Set"
}
],
"tempo": "1-1-1-1",
"rest_time": 90,
"note": "",
"order": null,
"pro_dur": 520,
"_id": "63caa1568d47745ae5589b25",
"status": 0,
"pct_complete": 0,
"set": []
},
{
"itemid": 495,
"target_are": [
{
"itemID": 3,
"description": "Back"
}
],
"target_mus": [
{
"itemID": 11,
"description": "Middle Back"
}
],
"nbr_ref": 3,
"int_rec": "10~12",
"type_rec": [
{
"itemID": 14,
"description": "Straight Set"
}
],
"tempo": "1-1-1-1",
"rest_time": 90,
"note": "",
"order": null,
"pro_dur": 414,
"_id": "63caa1568d47745ae5589b26",
"status": 0,
"pct_complete": 0,
"set": []
}
],
"isCustomName": false,
"status": 0,
"pct_complete": 0
},
"_id": "63ca9b8e8d47745ae558994b"
}
],
"_id": "63c7fec2fe9afea23afdbcf0"
},
"title": "Short Title text here",
"itemID": "bodyfyme882212-1674051266.214",
"__v": 32
}
Any help would be greatly appreciated