Migration¶
Calls¶
set_migration¶
Adds new migration, if there is no migration in storage
Attributes¶
| Name | Type |
|---|---|
| migration | Vec<KeyValue> |
Python¶
call = substrate.compose_call(
'Migration', 'set_migration', {'migration': [('Bytes', 'Bytes')]}
)
Events¶
Migrated¶
Migration completed
Attributes¶
No attributes
MigrationProcessed¶
Migration processed N items
Attributes¶
| Name | Type | Composition |
|---|---|---|
| None | u16 |
u16 |
MigrationSetted¶
New migration with N length added
Attributes¶
| Name | Type | Composition |
|---|---|---|
| None | u16 |
u16 |
Storage functions¶
Migration¶
Current migration
Python¶
result = substrate.query(
'Migration', 'Migration', []
)
Return value¶
[('Bytes', 'Bytes')]
Constants¶
MigrationsPerBlock¶
Set storage calls per block
Value¶
2000
Python¶
constant = substrate.get_constant('Migration', 'MigrationsPerBlock')
Errors¶
MigrationIsInProgress¶
We cannot start new migration before current ended