Changes between Version 117 and Version 118 of BackwardsIncompatibleChanges


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Timestamp:
08/19/07 22:58:06 (8 years ago)
Author:
adrian
Comment:

Added "Refactored database backends"

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  • BackwardsIncompatibleChanges

    v117 v118  
    302302== Changes to management.py commands ==
    303303
    304 In [5898], we refactored `management.py`. This was partially to clean up a 1700 line file, but also to allow user applications to register commands for use in `management.py`.
    305 
    306 As a result, any calls to management services in your code will need to be adjusted. For example, if you have some test code that calls `flush` and `load_data`:
     304In [5898], we refactored {{{management.py}}}. This was partially to clean up a 1700-line file, but also to allow user applications to register commands for use in {{{management.py}}}.
     305
     306As a result, any calls to management services in your code will need to be adjusted. For example, if you have some test code that calls {{{flush}}} and {{{load_data}}}:
    307307{{{
    308308>>> from django.core import management
     
    317317>>> management.call_command('loaddata', 'test_data', verbosity=0)
    318318}}}
     319
     320== Refactored database backends ==
     321
     322In a series of commits from [5949] to [5982], we refactored the database backends (the code in {{{django.db.backends}}}) to remove quite a bit of duplication, make it easier to maintain and extend, and to lay the groundwork for advanced features such as database connection pooling.
     323
     324As a result, almost *all* of the backend-level functions have been renamed and/or relocated. None of these were documented, but you'll need to change your code if you're using any of these functions:
     325
     326|| '''Old name/location'''                         || '''New name/location'''                    ||
     327|| {{{django.db.backend.get_autoinc_sql}}}         || {{{django.db.connection.ops.autoinc_sql}}} ||
     328|| {{{django.db.backend.get_date_extract_sql}}}    || {{{django.db.connection.ops.date_extract_sql}}} ||
     329|| {{{django.db.backend.get_date_trunc_sql}}}      || {{{django.db.connection.ops.date_trunc_sql}}} ||
     330|| {{{django.db.backend.get_datetime_cast_sql}}}   || {{{django.db.connection.ops.datetime_cast_sql}}} ||
     331|| {{{django.db.backend.get_deferrable_sql}}}      || {{{django.db.connection.ops.deferrable_sql}}} ||
     332|| {{{django.db.backend.get_drop_foreignkey_sql}}} || {{{django.db.connection.ops.drop_foreignkey_sql}}} ||
     333|| {{{django.db.backend.get_fulltext_search_sql}}} || {{{django.db.connection.ops.fulltext_search_sql}}} ||
     334|| {{{django.db.backend.get_last_insert_id}}}      || {{{django.db.connection.ops.last_insert_id}}} ||
     335|| {{{django.db.backend.get_limit_offset_sql}}}    || {{{django.db.connection.ops.limit_offset_sql}}} ||
     336|| {{{django.db.backend.get_max_name_length}}}     || {{{django.db.connection.ops.max_name_length}}} ||
     337|| {{{django.db.backend.get_pk_default_value}}}    || {{{django.db.connection.ops.pk_default_value}}} ||
     338|| {{{django.db.backend.get_random_function_sql}}} || {{{django.db.connection.ops.random_function_sql}}} ||
     339|| {{{django.db.backend.get_sql_flush}}}           || {{{django.db.connection.ops.sql_flush}}} ||
     340|| {{{django.db.backend.get_sql_sequence_reset}}}  || {{{django.db.connection.ops.sequence_reset_sql}}} ||
     341|| {{{django.db.backend.get_start_transaction_sql}}} || {{{django.db.connection.ops.start_transaction_sql}}} ||
     342|| {{{django.db.backend.get_tablespace_sql}}}      || {{{django.db.connection.ops.tablespace_sql}}} ||
     343|| {{{django.db.backend.quote_name}}}              || {{{django.db.connection.ops.quote_name}}} ||
     344|| {{{django.db.backend.get_query_set_class}}}     || {{{django.db.connection.ops.query_set_class}}} ||
     345|| {{{django.db.backend.get_field_cast_sql}}}      || {{{django.db.connection.ops.field_cast_sql}}} ||
     346|| {{{django.db.backend.get_drop_sequence}}}       || {{{django.db.connection.ops.drop_sequence_sql}}} ||
     347|| {{{django.db.backend.OPERATOR_MAPPING}}}        || {{{django.db.connection.operators}}} ||
     348|| {{{django.db.backend.allows_group_by_ordinal}}} || {{{django.db.connection.features.allows_group_by_ordinal}}} ||
     349|| {{{django.db.backend.allows_unique_and_pk}}}    || {{{django.db.connection.features.allows_unique_and_pk}}} ||
     350|| {{{django.db.backend.autoindexes_primary_keys}}}|| {{{django.db.connection.features.autoindexes_primary_keys}}} ||
     351|| {{{django.db.backend.needs_datetime_string_cast}}}||{{{django.db.connection.features.needs_datetime_string_cast}}} ||
     352|| {{{django.db.backend.needs_upper_for_iops}}}    || {{{django.db.connection.features.needs_upper_for_iops}}} ||
     353|| {{{django.db.backend.supports_constraints}}}    || {{{django.db.connection.features.supports_constraints}}} ||
     354|| {{{django.db.backend.supports_tablespaces}}}    || {{{django.db.connection.features.supports_tablespaces}}} ||
     355|| {{{django.db.backend.uses_case_insensitive_names}}} || {{{django.db.connection.features.uses_case_insensitive_names}}} ||
     356|| {{{django.db.backend.uses_custom_queryset}}}    || {{{django.db.connection.features.uses_custom_queryset}}} ||
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