2018-10-11 15:37:39 +00:00
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defmodule Mobilizon.Events.Tag do
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2018-01-14 16:56:50 +00:00
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@moduledoc """
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Represents a tag for events
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"""
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2017-12-08 08:58:14 +00:00
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use Ecto.Schema
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import Ecto.Changeset
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2018-10-11 15:37:39 +00:00
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alias Mobilizon.Events.Tag
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alias Mobilizon.Events.Tag.TitleSlug
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2019-02-14 13:19:55 +00:00
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alias Mobilizon.Events.TagRelation
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2017-12-08 08:58:14 +00:00
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schema "tags" do
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2018-07-27 08:45:35 +00:00
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field(:title, :string)
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field(:slug, TitleSlug.Type)
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2019-02-14 13:19:55 +00:00
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many_to_many(:related_tags, Tag, join_through: TagRelation)
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2017-12-08 08:58:14 +00:00
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timestamps()
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end
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@doc false
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def changeset(%Tag{} = tag, attrs) do
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tag
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2018-01-13 22:33:03 +00:00
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|> cast(attrs, [:title])
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|> TitleSlug.maybe_generate_slug()
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2018-11-23 14:03:53 +00:00
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|> validate_required([:title, :slug])
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2018-01-13 22:33:03 +00:00
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|> TitleSlug.unique_constraint()
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2017-12-08 08:58:14 +00:00
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end
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2019-09-07 23:49:56 +00:00
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def increment_slug(slug) do
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case List.pop_at(String.split(slug, "-"), -1) do
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{nil, _} ->
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slug
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{suffix, slug_parts} ->
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case Integer.parse(suffix) do
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{id, _} -> Enum.join(slug_parts, "-") <> "-" <> Integer.to_string(id + 1)
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:error -> slug <> "-1"
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end
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end
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end
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2018-01-14 16:56:50 +00:00
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end
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