Packages
phoenix
1.7.1
1.8.9
1.8.8
1.8.7
1.8.6
1.8.5
1.8.4
1.8.3
1.8.2
1.8.1
1.8.0
1.8.0-rc.4
1.8.0-rc.3
1.8.0-rc.2
1.8.0-rc.1
1.8.0-rc.0
1.7.24
1.7.23
1.7.22
1.7.21
1.7.20
1.7.19
1.7.18
1.7.17
1.7.16
1.7.15
1.7.14
1.7.13
1.7.12
1.7.11
1.7.10
1.7.9
1.7.8
1.7.7
1.7.6
1.7.5
1.7.4
1.7.3
1.7.2
1.7.1
1.7.0
1.7.0-rc.3
1.7.0-rc.2
1.7.0-rc.1
1.7.0-rc.0
1.6.17
1.6.16
1.6.15
1.6.14
1.6.13
1.6.12
1.6.11
1.6.10
1.6.9
1.6.8
1.6.7
1.6.6
1.6.5
1.6.4
1.6.3
1.6.2
1.6.1
1.6.0
1.6.0-rc.1
1.6.0-rc.0
1.5.15
1.5.14
1.5.13
1.5.12
1.5.11
1.5.10
1.5.9
1.5.8
1.5.7
1.5.6
1.5.5
1.5.4
1.5.3
1.5.2
1.5.1
1.5.0
1.5.0-rc.0
1.4.18
1.4.17
1.4.16
1.4.15
1.4.14
1.4.13
1.4.12
1.4.11
1.4.10
1.4.9
1.4.8
1.4.7
1.4.6
1.4.5
1.4.4
1.4.3
1.4.2
1.4.1
1.4.0
1.4.0-rc.3
1.4.0-rc.2
1.4.0-rc.1
1.4.0-rc.0
1.3.5
1.3.4
1.3.3
1.3.2
1.3.1
1.3.0
1.3.0-rc.3
1.3.0-rc.2
1.3.0-rc.1
1.3.0-rc.0
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
1.1.9
1.1.8
1.1.7
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
1.1.1
1.1.0
1.0.6
1.0.5
1.0.4
1.0.3
1.0.2
1.0.1
1.0.0
0.17.1
0.17.0
0.16.1
0.16.0
0.15.0
0.14.0
0.13.1
0.13.0
0.12.0
0.11.0
0.10.0
0.9.0
0.8.0
0.7.2
0.7.1
0.7.0
0.6.2
0.6.1
0.6.0
0.5.0
0.4.1
0.4.0
0.3.1
0.3.0
0.2.11
0.2.10
0.2.9
0.2.8
0.2.7
0.2.6
0.2.5
0.2.4
0.2.3
0.2.2
0.2.1
0.2.0
0.1.0
Productive. Reliable. Fast. A productive web framework that does not compromise speed or maintainability.
Security advisory:
This version has known vulnerabilities.
View advisories
Current section
Files
Jump to
Current section
Files
lib/phoenix/naming.ex
defmodule Phoenix.Naming do
@moduledoc """
Conveniences for inflecting and working with names in Phoenix.
"""
@doc """
Extracts the resource name from an alias.
## Examples
iex> Phoenix.Naming.resource_name(MyApp.User)
"user"
iex> Phoenix.Naming.resource_name(MyApp.UserView, "View")
"user"
"""
@spec resource_name(String.Chars.t, String.t) :: String.t
def resource_name(alias, suffix \\ "") do
alias
|> to_string()
|> Module.split()
|> List.last()
|> unsuffix(suffix)
|> underscore()
end
@doc """
Removes the given suffix from the name if it exists.
## Examples
iex> Phoenix.Naming.unsuffix("MyApp.User", "View")
"MyApp.User"
iex> Phoenix.Naming.unsuffix("MyApp.UserView", "View")
"MyApp.User"
"""
@spec unsuffix(String.t, String.t) :: String.t
def unsuffix(value, suffix) do
string = to_string(value)
suffix_size = byte_size(suffix)
prefix_size = byte_size(string) - suffix_size
case string do
<<prefix::binary-size(prefix_size), ^suffix::binary>> -> prefix
_ -> string
end
end
@doc """
Converts a string to underscore case.
## Examples
iex> Phoenix.Naming.underscore("MyApp")
"my_app"
In general, `underscore` can be thought of as the reverse of
`camelize`, however, in some cases formatting may be lost:
Phoenix.Naming.underscore "SAPExample" #=> "sap_example"
Phoenix.Naming.camelize "sap_example" #=> "SapExample"
"""
@spec underscore(String.t) :: String.t
def underscore(value), do: Macro.underscore(value)
defp to_lower_char(char) when char in ?A..?Z, do: char + 32
defp to_lower_char(char), do: char
@doc """
Converts a string to camel case.
Takes an optional `:lower` flag to return lowerCamelCase.
## Examples
iex> Phoenix.Naming.camelize("my_app")
"MyApp"
iex> Phoenix.Naming.camelize("my_app", :lower)
"myApp"
In general, `camelize` can be thought of as the reverse of
`underscore`, however, in some cases formatting may be lost:
Phoenix.Naming.underscore "SAPExample" #=> "sap_example"
Phoenix.Naming.camelize "sap_example" #=> "SapExample"
"""
@spec camelize(String.t) :: String.t
def camelize(value), do: Macro.camelize(value)
@spec camelize(String.t, :lower) :: String.t
def camelize("", :lower), do: ""
def camelize(<<?_, t :: binary>>, :lower) do
camelize(t, :lower)
end
def camelize(<<h, _t :: binary>> = value, :lower) do
<<_first, rest :: binary>> = camelize(value)
<<to_lower_char(h)>> <> rest
end
@doc """
Converts an attribute/form field into its humanize version.
## Examples
iex> Phoenix.Naming.humanize(:username)
"Username"
iex> Phoenix.Naming.humanize(:created_at)
"Created at"
iex> Phoenix.Naming.humanize("user_id")
"User"
"""
@spec humanize(atom | String.t) :: String.t
def humanize(atom) when is_atom(atom),
do: humanize(Atom.to_string(atom))
def humanize(bin) when is_binary(bin) do
bin =
if String.ends_with?(bin, "_id") do
binary_part(bin, 0, byte_size(bin) - 3)
else
bin
end
bin |> String.replace("_", " ") |> String.capitalize
end
end