python3-alembic 0.9.3-2ubuntu1 / usr / lib / python3 / dist-packages / alembic / operations / toimpl.py

This file is indexed.

/usr/lib/python3/dist-packages/alembic/operations/toimpl.py is in python3-alembic 0.9.3-2ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
from . import ops

from . import Operations
from sqlalchemy import schema as sa_schema


@Operations.implementation_for(ops.AlterColumnOp)
def alter_column(operations, operation):

    compiler = operations.impl.dialect.statement_compiler(
        operations.impl.dialect,
        None
    )

    existing_type = operation.existing_type
    existing_nullable = operation.existing_nullable
    existing_server_default = operation.existing_server_default
    type_ = operation.modify_type
    column_name = operation.column_name
    table_name = operation.table_name
    schema = operation.schema
    server_default = operation.modify_server_default
    new_column_name = operation.modify_name
    nullable = operation.modify_nullable

    def _count_constraint(constraint):
        return not isinstance(
            constraint,
            sa_schema.PrimaryKeyConstraint) and \
            (not constraint._create_rule or
                constraint._create_rule(compiler))

    if existing_type and type_:
        t = operations.schema_obj.table(
            table_name,
            sa_schema.Column(column_name, existing_type),
            schema=schema
        )
        for constraint in t.constraints:
            if _count_constraint(constraint):
                operations.impl.drop_constraint(constraint)

    operations.impl.alter_column(
        table_name, column_name,
        nullable=nullable,
        server_default=server_default,
        name=new_column_name,
        type_=type_,
        schema=schema,
        existing_type=existing_type,
        existing_server_default=existing_server_default,
        existing_nullable=existing_nullable,
        **operation.kw
    )

    if type_:
        t = operations.schema_obj.table(
            table_name,
            operations.schema_obj.column(column_name, type_),
            schema=schema
        )
        for constraint in t.constraints:
            if _count_constraint(constraint):
                operations.impl.add_constraint(constraint)


@Operations.implementation_for(ops.DropTableOp)
def drop_table(operations, operation):
    operations.impl.drop_table(
        operation.to_table(operations.migration_context)
    )


@Operations.implementation_for(ops.DropColumnOp)
def drop_column(operations, operation):
    column = operation.to_column(operations.migration_context)
    operations.impl.drop_column(
        operation.table_name,
        column,
        schema=operation.schema,
        **operation.kw
    )


@Operations.implementation_for(ops.CreateIndexOp)
def create_index(operations, operation):
    idx = operation.to_index(operations.migration_context)
    operations.impl.create_index(idx)


@Operations.implementation_for(ops.DropIndexOp)
def drop_index(operations, operation):
    operations.impl.drop_index(
        operation.to_index(operations.migration_context)
    )


@Operations.implementation_for(ops.CreateTableOp)
def create_table(operations, operation):
    table = operation.to_table(operations.migration_context)
    operations.impl.create_table(table)
    return table


@Operations.implementation_for(ops.RenameTableOp)
def rename_table(operations, operation):
    operations.impl.rename_table(
        operation.table_name,
        operation.new_table_name,
        schema=operation.schema)


@Operations.implementation_for(ops.AddColumnOp)
def add_column(operations, operation):
    table_name = operation.table_name
    column = operation.column
    schema = operation.schema

    t = operations.schema_obj.table(table_name, column, schema=schema)
    operations.impl.add_column(
        table_name,
        column,
        schema=schema
    )
    for constraint in t.constraints:
        if not isinstance(constraint, sa_schema.PrimaryKeyConstraint):
            operations.impl.add_constraint(constraint)
    for index in t.indexes:
        operations.impl.create_index(index)


@Operations.implementation_for(ops.AddConstraintOp)
def create_constraint(operations, operation):
    operations.impl.add_constraint(
        operation.to_constraint(operations.migration_context)
    )


@Operations.implementation_for(ops.DropConstraintOp)
def drop_constraint(operations, operation):
    operations.impl.drop_constraint(
        operations.schema_obj.generic_constraint(
            operation.constraint_name,
            operation.table_name,
            operation.constraint_type,
            schema=operation.schema,
        )
    )


@Operations.implementation_for(ops.BulkInsertOp)
def bulk_insert(operations, operation):
    operations.impl.bulk_insert(
        operation.table, operation.rows, multiinsert=operation.multiinsert)


@Operations.implementation_for(ops.ExecuteSQLOp)
def execute_sql(operations, operation):
    operations.migration_context.impl.execute(
        operation.sqltext,
        execution_options=operation.execution_options
    )

APT Browse - Built by Thomas Orozco.