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ash_postgres
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2.6.23
2.6.22
2.6.21
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2.6.18
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2.6.5
2.6.4
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2.6.1
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1.5.17
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1.3.68
1.3.67
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1.3.50
1.3.49
1.3.48
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1.3.37
1.3.36
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1.3.33
1.3.32
1.3.31
1.3.30
1.3.29
1.3.28
1.3.26
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1.3.24
1.3.23
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1.3.19
1.3.18
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1.3.12
1.3.11
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1.3.0-rc.4
1.3.0-rc.3
1.3.0-rc.2
1.3.0-rc.0
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1.2.5
1.2.4
1.2.3
1.2.2
1.2.1
1.2.0
1.2.0-rc.1
1.2.0-rc.0
1.1.3
1.1.2
1.1.1
1.1.0
1.0.0
1.0.0-rc.9
1.0.0-rc.8
1.0.0-rc.7
1.0.0-rc.6
1.0.0-rc.5
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1.0.0-pre.1
1.0.0-pre.0
0.43.0
0.42.0-rc.7
0.42.0-rc.6
0.42.0-rc.5
0.42.0-rc.4
0.42.0-rc.3
0.42.0-rc.1
0.42.0-rc.0
0.41.7
0.41.6
0.41.5
0.41.4
0.41.3
0.41.2
0.41.1
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0.41.0-rc.9
0.41.0-rc.8
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0.41.0-rc.1
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0.38.9
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0.38.7
0.38.6
0.38.5
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0.38.3
0.38.2
0.38.1
0.38.0
0.37.8
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0.37.6
0.37.5
0.37.4
0.37.3
0.37.2
0.37.1
0.37.0
0.36.5
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0.36.3
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0.36.1
0.36.0
0.35.5
0.35.4
0.35.3
0.35.1
0.34.5
0.34.4
0.34.3
0.34.2
0.34.1
0.34.0
0.33.1
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0.32.2
0.32.1
0.32.0
0.31.1
0.30.1
0.29.6
0.29.5
0.29.4
0.29.3
0.29.2
0.29.1
0.28.1
0.28.0
0.27.0
0.26.2
0.26.1
0.26.0
0.25.5
0.25.4
0.25.3
0.25.2
0.25.1
0.25.0
0.24.0
0.23.2
0.23.1
0.23.0
0.22.1
0.22.0
0.21.0
0.20.1
0.20.0
0.19.0
0.18.0
0.17.0
0.16.1
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0.14.0
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0.12.1
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0.11.2
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0.9.0
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0.6.0
0.5.0
0.4.0
0.3.0
0.2.1
0.2.0
0.1.4
0.1.3
0.1.2
0.1.1
0.1.1-rc.2
0.1.1-rc.1
0.1.1-rc.0
0.1.0
The PostgreSQL data layer for Ash Framework
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Files
lib/functions/fragment.ex
defmodule AshPostgres.Functions.Fragment do
@moduledoc """
A function that maps to ecto's `fragment` function
https://hexdocs.pm/ecto/Ecto.Query.API.html#fragment/1
"""
use Ash.Query.Function, name: :fragment
def private?, do: true
# Varargs is special, and should only be used in rare circumstances (like this one)
# no type casting or help can be provided for these functions.
def args, do: :var_args
def new([fragment | _]) when not is_binary(fragment) do
{:error, "First argument to `fragment` must be a string."}
end
def new([fragment | rest]) do
split = split_fragment(fragment)
if Enum.count(split, &(&1 == :slot)) != length(rest) do
{:error,
"fragment(...) expects extra arguments in the same amount of question marks in string. " <>
"It received #{Enum.count(split, &(&1 == :slot))} extra argument(s) but expected #{length(rest)}"}
else
{:ok, %__MODULE__{arguments: merge_fragment(split, rest)}}
end
end
def casted_new([fragment | _]) when not is_binary(fragment) do
{:error, "First argument to `fragment` must be a string."}
end
def casted_new([fragment | rest]) do
split = split_fragment(fragment)
if Enum.count(split, &(&1 == :slot)) != length(rest) do
{:error,
"fragment(...) expects extra arguments in the same amount of question marks in string. " <>
"It received #{Enum.count(split, &(&1 == :slot))} extra argument(s) but expected #{length(rest)}"}
else
{:ok, %__MODULE__{arguments: merge_fragment(split, rest, :casted_expr)}}
end
end
defp merge_fragment(expr, args, tag \\ :expr)
defp merge_fragment([], [], _tag), do: []
defp merge_fragment([:slot | rest], [arg | rest_args], tag) do
[{tag, arg} | merge_fragment(rest, rest_args, tag)]
end
defp merge_fragment([val | rest], rest_args, tag) do
[{:raw, val} | merge_fragment(rest, rest_args, tag)]
end
defp split_fragment(frag, consumed \\ "")
defp split_fragment(<<>>, consumed),
do: [consumed]
defp split_fragment(<<??, rest::binary>>, consumed),
do: [consumed, :slot | split_fragment(rest, "")]
defp split_fragment(<<?\\, ??, rest::binary>>, consumed),
do: split_fragment(rest, consumed <> <<??>>)
defp split_fragment(<<first::utf8, rest::binary>>, consumed),
do: split_fragment(rest, consumed <> <<first::utf8>>)
end