cigogne - v2.0.0

cigogne

Functions

apply_migration

</> 
pub fn apply_migration(
  connection: Connection,
  migration: Migration,
) -> Result(Nil, MigrateError)

Apply a migration to the database.
This function does not create a schema file.

apply_next_migration

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pub fn apply_next_migration(
  connection: Connection,
) -> Result(Nil, MigrateError)

Apply the next migration that wasn’t applied yet.
The migrations are acquired from priv/migrations/*.sql files.
This function does not create a schema file.

execute_migrations_to_last

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pub fn execute_migrations_to_last(
  connection: Connection,
) -> Result(Nil, MigrateError)

Apply migrations until we reach the last defined migration.
The migrations are acquired from **/migrations/*.sql files.
This function does not create a schema file.

execute_n_migrations

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pub fn execute_n_migrations(
  connection: Connection,
  count: Int,
) -> Result(Nil, MigrateError)

Apply or roll back migrations until we reach the migration corresponding to the provided number.
The migrations are acquired from **/migrations/*.sql files.
This function does not create a schema file.

get_migrations

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pub fn get_migrations() -> Result(List(Migration), MigrateError)

Get all defined migrations in your project.
Migration files are searched in /migrations folders.

get_schema

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pub fn get_schema(url: String) -> Result(String, MigrateError)

Get details about the schema of the database at the provided url.

main

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pub fn main() -> Result(Nil, Nil)

migrate_down

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pub fn migrate_down() -> Result(Nil, MigrateError)

Roll back the last applied migration.
This function will get the database url from the DATABASE_URL environment variable.
The migrations are then acquired from priv/migrations/*.sql files.
If successful, it will also create a file and write details of the new schema in it.

migrate_n

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pub fn migrate_n(count: Int) -> Result(Nil, MigrateError)

Apply or roll back migrations until we reach the migration corresponding to the provided number.
This function will get the database url from the DATABASE_URL environment variable.
The migrations are then acquired from priv/migrations/*.sql files.
If successful, it will also create a file and write details of the new schema in it.

migrate_to_last

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pub fn migrate_to_last() -> Result(Nil, MigrateError)

Apply migrations until we reach the last defined migration.
This function will get the database url from the DATABASE_URL environment variable.
The migrations are then acquired from priv/migrations/*.sql files.
If successful, it will also create a file and write details of the new schema in it.

migrate_up

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pub fn migrate_up() -> Result(Nil, MigrateError)

Apply the next migration that wasn’t applied yet.
This function will get the database url from the DATABASE_URL environment variable.
The migrations are then acquired from priv/migrations/*.sql files.
If successful, it will also create a file and write details of the new schema in it.

new_migration

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pub fn new_migration(name: String) -> Result(Nil, MigrateError)
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pub fn print_error(error: MigrateError) -> Nil

Print a MigrateError to the standard error stream.

roll_back_migration

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pub fn roll_back_migration(
  connection: Connection,
  migration: Migration,
) -> Result(Nil, MigrateError)

Roll back a migration from the database.
This function does not create a schema file.

roll_back_previous_migration

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pub fn roll_back_previous_migration(
  connection: Connection,
) -> Result(Nil, MigrateError)

Roll back the last applied migration.
The migrations are acquired from **/migrations/*.sql files.
This function does not create a schema file.

update_schema_file

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pub fn update_schema_file(
  url: String,
) -> Result(Nil, MigrateError)

Create or update a schema file with details of the schema of the database at the provided url. The schema file is created at ./sql.schema.

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