185 lines
3.7 KiB
Elixir
185 lines
3.7 KiB
Elixir
defmodule Shift73k.Shifts do
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@moduledoc """
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The Shifts context.
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"""
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import Ecto.Query, warn: false
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alias Shift73k.Repo
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alias Shift73k.Shifts.Shift
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@doc """
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Returns the list of shifts.
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## Examples
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iex> list_shifts()
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[%Shift{}, ...]
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"""
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def list_shifts do
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Repo.all(Shift)
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end
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def query_shifts_by_user(user_id) do
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from(s in Shift)
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|> where([s], s.user_id == ^user_id)
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end
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def list_shifts_by_user(user_id) do
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user_id
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|> query_shifts_by_user()
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|> Repo.all()
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end
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def list_shifts_by_user_in_date_range(user_id, %Date.Range{} = date_range) do
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user_id
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|> query_shifts_by_user()
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|> where([s], s.date >= ^date_range.first)
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|> where([s], s.date <= ^date_range.last)
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|> order_by([s], [s.date, s.time_start])
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|> Repo.all()
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end
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defp query_shifts_by_user_from_list_of_dates(user_id, date_list) do
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user_id
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|> query_shifts_by_user()
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|> where([s], s.date in ^date_list)
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end
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def list_shifts_by_user_from_list_of_dates(user_id, date_list) do
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user_id
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|> query_shifts_by_user_from_list_of_dates(date_list)
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|> Repo.all()
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end
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def query_user_shift_dates(user_id) do
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query_shifts_by_user(user_id)
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|> select([s], s.date)
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end
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def get_min_user_shift_date(user_id) do
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query_user_shift_dates(user_id)
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|> order_by([s], asc: s.date)
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|> limit([s], 1)
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|> Repo.one()
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end
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def get_max_user_shift_date(user_id) do
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query_user_shift_dates(user_id)
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|> order_by([s], desc: s.date)
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|> limit([s], 1)
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|> Repo.one()
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end
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@doc """
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Gets a single shift.
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Raises `Ecto.NoResultsError` if the Shift does not exist.
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## Examples
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iex> get_shift!(123)
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%Shift{}
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iex> get_shift!(456)
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** (Ecto.NoResultsError)
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"""
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def get_shift!(id), do: Repo.get!(Shift, id)
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@doc """
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Creates a shift.
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## Examples
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iex> create_shift(%{field: value})
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{:ok, %Shift{}}
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iex> create_shift(%{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def create_shift(attrs \\ %{}) do
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%Shift{}
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|> Shift.changeset(attrs)
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|> Repo.insert()
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end
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def create_multiple(shift_attrs) when is_list(shift_attrs) do
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try do
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Repo.insert_all(Shift, shift_attrs)
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rescue
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e in Postgrex.Error -> {:error, e.message}
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end
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end
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@doc """
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Updates a shift.
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## Examples
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iex> update_shift(shift, %{field: new_value})
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{:ok, %Shift{}}
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iex> update_shift(shift, %{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def update_shift(%Shift{} = shift, attrs) do
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shift
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|> Shift.changeset(attrs)
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|> Repo.update()
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end
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@doc """
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Deletes a shift.
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## Examples
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iex> delete_shift(shift)
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{:ok, %Shift{}}
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iex> delete_shift(shift)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_shift(%Shift{} = shift) do
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Repo.delete(shift)
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end
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def delete_shifts_by_user_from_list_of_dates(user_id, date_list) do
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query_shifts_by_user_from_list_of_dates(user_id, date_list)
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|> Repo.delete_all()
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end
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@doc """
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Returns an `%Ecto.Changeset{}` for tracking shift changes.
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## Examples
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iex> change_shift(shift)
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%Ecto.Changeset{data: %Shift{}}
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"""
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def change_shift(%Shift{} = shift, attrs \\ %{}) do
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Shift.changeset(shift, attrs)
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end
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###
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# UTILS
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def shift_length(%{time_end: time_end, time_start: time_start}) do
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time_end
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|> Time.diff(time_start)
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|> Integer.floor_div(60)
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|> shift_length()
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end
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def shift_length(len_min) when is_integer(len_min) and len_min >= 0, do: len_min
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def shift_length(len_min) when is_integer(len_min) and len_min < 0, do: 1440 + len_min
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def shift_length(time_end, time_start) do
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shift_length(%{time_end: time_end, time_start: time_start})
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end
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end
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