1. class
  2. Hypervel
  3. \
  4. SchemaParser
  5. \
  6. Impact

Impact

class Impact

How an input's statements affect tables, views and user types that existed before it.

A schema snapshot only describes the definitions an input contains. When the input is a script applied to an existing schema, such as a raw migration statement, the impact tells its consumer which earlier relations may no longer exist or keep their columns, and which user types may no longer exist or keep their definitions. It does not list index or comment changes.

Methods

__construct(array $relations = [], bool $unknown = false, array $types = [])

Create the impact of one input.

Details

at line 25
__construct(array $relations = [], bool $unknown = false, array $types = [])

Create the impact of one input.

Parameters

array $relations

the tables and views the input alters, drops or renames, including both names of a rename, whether or not it also defines them
bool $unknown

whether a statement may have changed relations or types without naming them, such as a cascading drop, a type rename or a function call, or changed how later statements resolve names
array $types

the PostgreSQL enums and domains the input alters or drops without renaming them, whether or not it also defines them