anantharaman445
List of nested maps
Hi I’ve a list of nested maps as like this
[
%{
ingredients: [
%{"measuring_unit" => "gms", "name" => "okra/bhindi", "qty" => 450},
%{"measuring_unit" => "tbsp", "name" => "vegetable oil", "qty" => "2"},
%{
"measuring_unit" => "tbsp",
"name" => "desiccated coconut powder",
"qty" => 4
},
%{"measuring_unit" => "tbsp", "name" => "coriander powder", "qty" => 2},
%{"measuring_unit" => "tbsp", "name" => "cumin powder", "qty" => 2},
%{"measuring_unit" => "tbsp", "name" => "ground cumin", "qty" => 1.5},
%{"measuring_unit" => "tbsp", "name" => "cinnamon stick", "qty" => 1},
%{
"measuring_unit" => "tbsp",
"name" => "dried mango powder, also known as amchur",
"qty" => 1
},
%{
"measuring_unit" => "tbsp",
"name" => "red pepper flakes",
"qty" => 0.25
},
%{"measuring_unit" => "tbsp", "name" => "red chili powder", "qty" => 1},
%{"measuring_unit" => "tbsp", "name" => "garam masala", "qty" => 1},
%{"measuring_unit" => "tbsp", "name" => "turmeric powder", "qty" => 0.25},
%{"measuring_unit" => "tbsp", "name" => "salt, or to taste", "qty" => 2},
%{
"measuring_unit" => "tbsp",
"name" => "vegetable oil, divided",
"qty" => 2
}
],
name: "Stuffed Bhindi",
other_ingredients: []
},
%{
ingredients: [
%{"measuring_unit" => "gms", "name" => "okra/bhindi", "qty" => 450},
%{"measuring_unit" => "tbsp", "name" => "vegetable oil", "qty" => "2"},
%{
"measuring_unit" => "tbsp",
"name" => "desiccated coconut powder",
"qty" => 4
},
%{"measuring_unit" => "tbsp", "name" => "coriander powder", "qty" => 2},
%{"measuring_unit" => "tbsp", "name" => "cumin powder", "qty" => 2},
%{"measuring_unit" => "tbsp", "name" => "ground cumin", "qty" => 1.5},
%{"measuring_unit" => "tbsp", "name" => "cinnamon stick", "qty" => 1},
%{
"measuring_unit" => "tbsp",
"name" => "dried mango powder, also known as amchur",
"qty" => 1
},
%{
"measuring_unit" => "tbsp",
"name" => "red pepper flakes",
"qty" => 0.25
},
%{"measuring_unit" => "tbsp", "name" => "red chili powder", "qty" => 1},
%{"measuring_unit" => "tbsp", "name" => "garam masala", "qty" => 1},
%{"measuring_unit" => "tbsp", "name" => "turmeric powder", "qty" => 0.25},
%{"measuring_unit" => "tbsp", "name" => "salt, or to taste", "qty" => 2},
%{
"measuring_unit" => "tbsp",
"name" => "vegetable oil, divided",
"qty" => 2
}
],
name: "Normal Bhindi",
other_ingredients: []
}
]
I just wanted to extract the data where name = “Stuffed Bhindhi”
I tried this ingre_map = Enum.take_while(ingredientslist, fn x → ingredientslist[:name] == “Stuffed Bhindhi”)
but didn’t work getting nil
Marked As Solved
idi527
How about
Enum.find(ingredients, fn %{name: name} -> name == "Stuffed Bhindi" end)
4
Also Liked
mudasobwa
Creator of Cure
I vote for comprehensions!
for %{name: "Stuffed Bhindi"} = map <- ings, do: map # hd() if there is only one
4
gerbal
In a pipeline if all instances implement Access
ingredients
|> Enum.filter(& &1[:name] == "Stuffed Bhindi")
|> Enum.map(& get_in(&1, [:ingredients, Access.all(), "name"]))
[
["okra/bhindi", "vegetable oil", "desiccated coconut powder",
"coriander powder", "cumin powder", "ground cumin", "cinnamon stick",
"dried mango powder, also known as amchur", "red pepper flakes",
"red chili powder", "garam masala", "turmeric powder", "salt, or to taste",
"vegetable oil, divided"]
]
1
mudasobwa
Creator of Cure
Indeed!
get_in ingrs, [Access.filter(& &1[:name] == "Stuffed Bhindi"), :ingredients, Access.all(), "name"]
1
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