Graham McIntire
bbe5bde145
Phoenix 1.8 app that scrapes ammunition retailers (Lucky Gunner, SGAmmo) for price data and displays historical price trends. - Data model: retailers, calibers, products, price snapshots - Scraper infrastructure with Req, Floki, realistic browser headers - Oban-scheduled scrape jobs (every 4h with randomized delays) - LiveView pages: homepage with category cards, caliber detail with price table, Chart.js price history, and price stats banner - 18 seeded calibers across handgun/rifle/rimfire/shotgun categories - 77 tests
27 lines
705 B
Elixir
27 lines
705 B
Elixir
defmodule Ammoprices.Catalog.Caliber do
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@moduledoc false
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use Ecto.Schema
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import Ecto.Changeset
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@primary_key {:id, :binary_id, autogenerate: true}
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@foreign_key_type :binary_id
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schema "calibers" do
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field :name, :string
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field :slug, :string
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field :category, :string
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field :aliases, {:array, :string}, default: []
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has_many :products, Ammoprices.Catalog.Product
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timestamps(type: :utc_datetime)
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end
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def changeset(caliber, attrs) do
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caliber
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|> cast(attrs, [:name, :slug, :category, :aliases])
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|> validate_required([:name, :slug, :category])
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|> validate_inclusion(:category, ~w(handgun rifle rimfire shotgun))
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|> unique_constraint(:slug)
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end
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end
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