diesel::migration

Trait Migration

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pub trait Migration<DB: Backend> {
    // Required methods
    fn run(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>;
    fn revert(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>;
    fn metadata(&self) -> &dyn MigrationMetadata;
    fn name(&self) -> &dyn MigrationName;
}
Expand description

Represents a migration that interacts with diesel

Required Methods§

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fn run(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>

Apply this migration

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fn revert(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>

Revert this migration

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fn metadata(&self) -> &dyn MigrationMetadata

Get a the attached metadata for this migration

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fn name(&self) -> &dyn MigrationName

Get the name of the current migration

The provided name is used by migration harness to get the version of a migration and to as something to that is displayed and allows user to identify a specific migration

Trait Implementations§

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impl<'a, DB: Backend> Migration<DB> for &'a dyn Migration<DB>

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fn run(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>

Apply this migration
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fn revert(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>

Revert this migration
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fn metadata(&self) -> &dyn MigrationMetadata

Get a the attached metadata for this migration
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fn name(&self) -> &dyn MigrationName

Get the name of the current migration Read more
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impl<'a, DB: Backend> Migration<DB> for Box<dyn Migration<DB> + 'a>

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fn run(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>

Apply this migration
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fn revert(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>

Revert this migration
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fn metadata(&self) -> &dyn MigrationMetadata

Get a the attached metadata for this migration
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fn name(&self) -> &dyn MigrationName

Get the name of the current migration Read more

Implementations on Foreign Types§

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impl<'a, DB: Backend> Migration<DB> for Box<dyn Migration<DB> + 'a>

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fn run(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>

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fn revert(&self, conn: &mut dyn BoxableConnection<DB>) -> Result<()>

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fn metadata(&self) -> &dyn MigrationMetadata

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fn name(&self) -> &dyn MigrationName

Implementors§

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impl<'a, DB: Backend> Migration<DB> for &'a dyn Migration<DB>