ecto_shorts

v0.1.0

ecto_shorts v0.1.0 EctoShorts.CommonChanges

This module is responsible for determining put/cast assoc as well as creating and updating model relations

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Functions

changeset_field_empty?(changeset, key)

Checks if field on changeset is empty list in data or changes

changeset_field_nil?(changeset, key)

Checks if field on changeset is nil in data or changes

preload_change_assoc(changeset, key)
preload_change_assoc(changeset, key, opts)

Preloads changeset assoc and put_or_cast's it, should use this most of time See docs for &EctoShorts.CommonChanges.put_or_cast_assoc/2 for ideas on how it works and what you can pass

preload_changeset_assoc(changeset, key, opts \\ [])

Preloads a changesets association

put_or_cast_assoc(changeset, key, opts \\ [])

Determines put or cast on association with some special magic

put_when(changeset, when_func, change_func)

Run's changeset function if when function returns true

Link to this section Functions

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changeset_field_empty?(changeset, key) 
changeset_field_empty?(Ecto.Changeset.t(), atom()) :: boolean()

Checks if field on changeset is empty list in data or changes

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changeset_field_nil?(changeset, key) 
changeset_field_nil?(Ecto.Changeset.t(), atom()) :: boolean()

Checks if field on changeset is nil in data or changes

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preload_change_assoc(changeset, key) 
preload_change_assoc(Ecto.Changeset.t(), atom()) :: Ecto.Changeset.t()

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preload_change_assoc(changeset, key, opts) 
preload_change_assoc(Ecto.Changeset.t(), atom(), Keyword.t()) ::
  Ecto.Changeset.t()

Preloads changeset assoc and put_or_cast's it, should use this most of time See docs for &EctoShorts.CommonChanges.put_or_cast_assoc/2 for ideas on how it works and what you can pass

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preload_changeset_assoc(changeset, key, opts \\ []) 
preload_changeset_assoc(Ecto.Changeset.t(), atom(), [integer()]) ::
  Ecto.Changeset.t()

Preloads a changesets association

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put_or_cast_assoc(changeset, key, opts \\ []) 
put_or_cast_assoc(Ecto.Changeset.t(), atom(), Keyword.t()) :: Ecto.Changeset.t()

Determines put or cast on association with some special magic

If you pass a many to many relation only a list of id's it will count that as a member_update and remove or add members to the relations list

E.G. User many_to_many Fruit

This would update the user to have only fruits with id 1 and 3

CommonChanges.put_or_cast_assoc(change(user, fruits: [%{id: 1}, %{id: 3}]), :fruits)
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put_when(changeset, when_func, change_func) 
put_when(
  Ecto.Changeset.t(),
  (Ecto.Changeset.t() -> boolean()),
  (Ecto.Changeset.t() -> Ecto.Changeset.t())
) :: Ecto.Changeset.t()

Run's changeset function if when function returns true