78 lines
2.1 KiB
Elixir
78 lines
2.1 KiB
Elixir
defmodule Backend.Instance do
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@moduledoc """
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Model for storing everything related to an instance: not only the data from crawls, but also statistics, the time
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of the next scheduled crawl, X and Y coordinates on the graph, and so on.
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"""
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use Ecto.Schema
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import Ecto.Changeset
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schema "instances" do
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field :domain, :string
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field :description, :string
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field :user_count, :integer
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field :status_count, :integer
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field :version, :string
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field :insularity, :float
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field :type, :string
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field :statuses_per_day, :float
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field :base_domain, :string
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field :opt_in, :boolean
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field :opt_out, :boolean
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field :next_crawl, :naive_datetime
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field :crawl_error, :string
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field :crawl_error_count, :integer
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many_to_many :peers, Backend.Instance,
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join_through: Backend.InstancePeer,
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join_keys: [source_domain: :domain, target_domain: :domain]
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# This may look like it's duplicating :peers above, but it allows us to insert peer relationships quickly.
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# https://stackoverflow.com/a/56764241/3697202
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has_many :instance_peers, Backend.InstancePeer,
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foreign_key: :source_domain,
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references: :domain
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timestamps()
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end
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@doc false
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def changeset(instance, attrs) do
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instance
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|> cast(attrs, [
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:domain,
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:description,
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:user_count,
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:status_count,
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:version,
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:insularity,
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:updated_at,
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:type,
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:statuses_per_day,
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:base_domain,
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:opt_in,
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:opt_out,
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:next_crawl,
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:crawl_error,
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:crawl_error_count
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])
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|> validate_required([:domain])
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|> put_assoc(:peers, attrs.peers)
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end
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defimpl Elasticsearch.Document, for: Backend.Instance do
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def id(instance), do: instance.id
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def routing(_), do: false
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def encode(instance) do
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# Make sure this corresponds with priv/elasticseach/instances.json
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%{
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domain: instance.domain,
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description: instance.description,
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type: instance.type,
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user_count: instance.user_count,
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opt_out: instance.opt_out
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}
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end
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end
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end
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