author | Sverre Rabbelier <srabbelier@gmail.com> |
Fri, 06 Mar 2009 22:32:26 +0000 | |
changeset 1700 | 599a5ff8f422 |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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import sys |
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import time |
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try: |
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set |
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except NameError: |
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# Python 2.3 compat |
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from sets import Set as set |
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from django.conf import settings |
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from django.core.management import call_command |
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# The prefix to put on the default database name when creating |
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# the test database. |
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TEST_DATABASE_PREFIX = 'test_' |
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class BaseDatabaseCreation(object): |
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""" |
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This class encapsulates all backend-specific differences that pertain to |
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database *creation*, such as the column types to use for particular Django |
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Fields, the SQL used to create and destroy tables, and the creation and |
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destruction of test databases. |
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""" |
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data_types = {} |
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def __init__(self, connection): |
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self.connection = connection |
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def sql_create_model(self, model, style, known_models=set()): |
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""" |
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Returns the SQL required to create a single model, as a tuple of: |
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(list_of_sql, pending_references_dict) |
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""" |
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from django.db import models |
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opts = model._meta |
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final_output = [] |
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table_output = [] |
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pending_references = {} |
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qn = self.connection.ops.quote_name |
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for f in opts.local_fields: |
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col_type = f.db_type() |
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tablespace = f.db_tablespace or opts.db_tablespace |
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if col_type is None: |
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# Skip ManyToManyFields, because they're not represented as |
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# database columns in this table. |
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continue |
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# Make the definition (e.g. 'foo VARCHAR(30)') for this field. |
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field_output = [style.SQL_FIELD(qn(f.column)), |
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style.SQL_COLTYPE(col_type)] |
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field_output.append(style.SQL_KEYWORD('%sNULL' % (not f.null and 'NOT ' or ''))) |
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if f.primary_key: |
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field_output.append(style.SQL_KEYWORD('PRIMARY KEY')) |
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elif f.unique: |
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field_output.append(style.SQL_KEYWORD('UNIQUE')) |
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if tablespace and f.unique: |
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# We must specify the index tablespace inline, because we |
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# won't be generating a CREATE INDEX statement for this field. |
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field_output.append(self.connection.ops.tablespace_sql(tablespace, inline=True)) |
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if f.rel: |
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ref_output, pending = self.sql_for_inline_foreign_key_references(f, known_models, style) |
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if pending: |
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pr = pending_references.setdefault(f.rel.to, []).append((model, f)) |
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else: |
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field_output.extend(ref_output) |
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table_output.append(' '.join(field_output)) |
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if opts.order_with_respect_to: |
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table_output.append(style.SQL_FIELD(qn('_order')) + ' ' + \ |
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style.SQL_COLTYPE(models.IntegerField().db_type()) + ' ' + \ |
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style.SQL_KEYWORD('NULL')) |
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for field_constraints in opts.unique_together: |
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table_output.append(style.SQL_KEYWORD('UNIQUE') + ' (%s)' % \ |
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", ".join([style.SQL_FIELD(qn(opts.get_field(f).column)) for f in field_constraints])) |
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full_statement = [style.SQL_KEYWORD('CREATE TABLE') + ' ' + style.SQL_TABLE(qn(opts.db_table)) + ' ('] |
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for i, line in enumerate(table_output): # Combine and add commas. |
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full_statement.append(' %s%s' % (line, i < len(table_output)-1 and ',' or '')) |
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full_statement.append(')') |
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if opts.db_tablespace: |
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full_statement.append(self.connection.ops.tablespace_sql(opts.db_tablespace)) |
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full_statement.append(';') |
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final_output.append('\n'.join(full_statement)) |
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if opts.has_auto_field: |
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# Add any extra SQL needed to support auto-incrementing primary keys. |
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auto_column = opts.auto_field.db_column or opts.auto_field.name |
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autoinc_sql = self.connection.ops.autoinc_sql(opts.db_table, auto_column) |
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if autoinc_sql: |
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for stmt in autoinc_sql: |
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final_output.append(stmt) |
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return final_output, pending_references |
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|
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def sql_for_inline_foreign_key_references(self, field, known_models, style): |
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"Return the SQL snippet defining the foreign key reference for a field" |
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qn = self.connection.ops.quote_name |
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if field.rel.to in known_models: |
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output = [style.SQL_KEYWORD('REFERENCES') + ' ' + \ |
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style.SQL_TABLE(qn(field.rel.to._meta.db_table)) + ' (' + \ |
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style.SQL_FIELD(qn(field.rel.to._meta.get_field(field.rel.field_name).column)) + ')' + |
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100 |
self.connection.ops.deferrable_sql() |
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] |
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|
102 |
pending = False |
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|
103 |
else: |
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|
104 |
# We haven't yet created the table to which this field |
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|
105 |
# is related, so save it for later. |
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|
106 |
output = [] |
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|
107 |
pending = True |
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|
108 |
|
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|
109 |
return output, pending |
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|
110 |
|
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|
111 |
def sql_for_pending_references(self, model, style, pending_references): |
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|
112 |
"Returns any ALTER TABLE statements to add constraints after the fact." |
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|
113 |
from django.db.backends.util import truncate_name |
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|
114 |
|
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|
115 |
qn = self.connection.ops.quote_name |
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|
116 |
final_output = [] |
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|
117 |
opts = model._meta |
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|
118 |
if model in pending_references: |
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|
119 |
for rel_class, f in pending_references[model]: |
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|
120 |
rel_opts = rel_class._meta |
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|
121 |
r_table = rel_opts.db_table |
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|
122 |
r_col = f.column |
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|
123 |
table = opts.db_table |
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124 |
col = opts.get_field(f.rel.field_name).column |
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|
125 |
# For MySQL, r_name must be unique in the first 64 characters. |
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|
126 |
# So we are careful with character usage here. |
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|
127 |
r_name = '%s_refs_%s_%x' % (r_col, col, abs(hash((r_table, table)))) |
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|
128 |
final_output.append(style.SQL_KEYWORD('ALTER TABLE') + ' %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s)%s;' % \ |
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|
129 |
(qn(r_table), truncate_name(r_name, self.connection.ops.max_name_length()), |
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|
130 |
qn(r_col), qn(table), qn(col), |
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|
131 |
self.connection.ops.deferrable_sql())) |
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|
132 |
del pending_references[model] |
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|
133 |
return final_output |
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|
134 |
|
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|
135 |
def sql_for_many_to_many(self, model, style): |
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|
136 |
"Return the CREATE TABLE statments for all the many-to-many tables defined on a model" |
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|
137 |
output = [] |
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|
138 |
for f in model._meta.local_many_to_many: |
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|
139 |
output.extend(self.sql_for_many_to_many_field(model, f, style)) |
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|
140 |
return output |
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|
141 |
|
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|
142 |
def sql_for_many_to_many_field(self, model, f, style): |
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|
143 |
"Return the CREATE TABLE statements for a single m2m field" |
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|
144 |
from django.db import models |
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|
145 |
from django.db.backends.util import truncate_name |
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|
146 |
|
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|
147 |
output = [] |
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|
148 |
if f.creates_table: |
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|
149 |
opts = model._meta |
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|
150 |
qn = self.connection.ops.quote_name |
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|
151 |
tablespace = f.db_tablespace or opts.db_tablespace |
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|
152 |
if tablespace: |
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|
153 |
sql = self.connection.ops.tablespace_sql(tablespace, inline=True) |
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|
154 |
if sql: |
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|
155 |
tablespace_sql = ' ' + sql |
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|
156 |
else: |
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|
157 |
tablespace_sql = '' |
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|
158 |
else: |
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|
159 |
tablespace_sql = '' |
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|
160 |
table_output = [style.SQL_KEYWORD('CREATE TABLE') + ' ' + \ |
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|
161 |
style.SQL_TABLE(qn(f.m2m_db_table())) + ' ('] |
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|
162 |
table_output.append(' %s %s %s%s,' % |
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|
163 |
(style.SQL_FIELD(qn('id')), |
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|
164 |
style.SQL_COLTYPE(models.AutoField(primary_key=True).db_type()), |
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|
165 |
style.SQL_KEYWORD('NOT NULL PRIMARY KEY'), |
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|
166 |
tablespace_sql)) |
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|
167 |
|
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|
168 |
deferred = [] |
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|
169 |
inline_output, deferred = self.sql_for_inline_many_to_many_references(model, f, style) |
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|
170 |
table_output.extend(inline_output) |
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|
171 |
|
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|
172 |
table_output.append(' %s (%s, %s)%s' % |
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|
173 |
(style.SQL_KEYWORD('UNIQUE'), |
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|
174 |
style.SQL_FIELD(qn(f.m2m_column_name())), |
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|
175 |
style.SQL_FIELD(qn(f.m2m_reverse_name())), |
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|
176 |
tablespace_sql)) |
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|
177 |
table_output.append(')') |
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|
178 |
if opts.db_tablespace: |
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|
179 |
# f.db_tablespace is only for indices, so ignore its value here. |
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|
180 |
table_output.append(self.connection.ops.tablespace_sql(opts.db_tablespace)) |
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|
181 |
table_output.append(';') |
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|
182 |
output.append('\n'.join(table_output)) |
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|
183 |
|
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changeset
|
184 |
for r_table, r_col, table, col in deferred: |
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|
185 |
r_name = '%s_refs_%s_%x' % (r_col, col, |
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|
186 |
abs(hash((r_table, table)))) |
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|
187 |
output.append(style.SQL_KEYWORD('ALTER TABLE') + ' %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s)%s;' % |
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changeset
|
188 |
(qn(r_table), |
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changeset
|
189 |
truncate_name(r_name, self.connection.ops.max_name_length()), |
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changeset
|
190 |
qn(r_col), qn(table), qn(col), |
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|
191 |
self.connection.ops.deferrable_sql())) |
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changeset
|
192 |
|
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changeset
|
193 |
# Add any extra SQL needed to support auto-incrementing PKs |
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changeset
|
194 |
autoinc_sql = self.connection.ops.autoinc_sql(f.m2m_db_table(), 'id') |
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|
195 |
if autoinc_sql: |
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|
196 |
for stmt in autoinc_sql: |
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|
197 |
output.append(stmt) |
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|
198 |
return output |
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changeset
|
199 |
|
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changeset
|
200 |
def sql_for_inline_many_to_many_references(self, model, field, style): |
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|
201 |
"Create the references to other tables required by a many-to-many table" |
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|
202 |
from django.db import models |
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|
203 |
opts = model._meta |
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|
204 |
qn = self.connection.ops.quote_name |
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changeset
|
205 |
|
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|
206 |
table_output = [ |
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|
207 |
' %s %s %s %s (%s)%s,' % |
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changeset
|
208 |
(style.SQL_FIELD(qn(field.m2m_column_name())), |
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|
209 |
style.SQL_COLTYPE(models.ForeignKey(model).db_type()), |
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|
210 |
style.SQL_KEYWORD('NOT NULL REFERENCES'), |
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changeset
|
211 |
style.SQL_TABLE(qn(opts.db_table)), |
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changeset
|
212 |
style.SQL_FIELD(qn(opts.pk.column)), |
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|
213 |
self.connection.ops.deferrable_sql()), |
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|
214 |
' %s %s %s %s (%s)%s,' % |
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changeset
|
215 |
(style.SQL_FIELD(qn(field.m2m_reverse_name())), |
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changeset
|
216 |
style.SQL_COLTYPE(models.ForeignKey(field.rel.to).db_type()), |
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|
217 |
style.SQL_KEYWORD('NOT NULL REFERENCES'), |
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|
218 |
style.SQL_TABLE(qn(field.rel.to._meta.db_table)), |
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|
219 |
style.SQL_FIELD(qn(field.rel.to._meta.pk.column)), |
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|
220 |
self.connection.ops.deferrable_sql()) |
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|
221 |
] |
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|
222 |
deferred = [] |
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|
223 |
|
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|
224 |
return table_output, deferred |
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|
225 |
|
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|
226 |
def sql_indexes_for_model(self, model, style): |
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|
227 |
"Returns the CREATE INDEX SQL statements for a single model" |
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|
228 |
output = [] |
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|
229 |
for f in model._meta.local_fields: |
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|
230 |
output.extend(self.sql_indexes_for_field(model, f, style)) |
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|
231 |
return output |
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changeset
|
232 |
|
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|
233 |
def sql_indexes_for_field(self, model, f, style): |
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|
234 |
"Return the CREATE INDEX SQL statements for a single model field" |
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|
235 |
if f.db_index and not f.unique: |
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|
236 |
qn = self.connection.ops.quote_name |
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|
237 |
tablespace = f.db_tablespace or model._meta.db_tablespace |
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|
238 |
if tablespace: |
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|
239 |
sql = self.connection.ops.tablespace_sql(tablespace) |
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|
240 |
if sql: |
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|
241 |
tablespace_sql = ' ' + sql |
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changeset
|
242 |
else: |
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changeset
|
243 |
tablespace_sql = '' |
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changeset
|
244 |
else: |
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|
245 |
tablespace_sql = '' |
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|
246 |
output = [style.SQL_KEYWORD('CREATE INDEX') + ' ' + |
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changeset
|
247 |
style.SQL_TABLE(qn('%s_%s' % (model._meta.db_table, f.column))) + ' ' + |
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|
248 |
style.SQL_KEYWORD('ON') + ' ' + |
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|
249 |
style.SQL_TABLE(qn(model._meta.db_table)) + ' ' + |
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|
250 |
"(%s)" % style.SQL_FIELD(qn(f.column)) + |
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|
251 |
"%s;" % tablespace_sql] |
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changeset
|
252 |
else: |
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|
253 |
output = [] |
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|
254 |
return output |
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changeset
|
255 |
|
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changeset
|
256 |
def sql_destroy_model(self, model, references_to_delete, style): |
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|
257 |
"Return the DROP TABLE and restraint dropping statements for a single model" |
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|
258 |
# Drop the table now |
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|
259 |
qn = self.connection.ops.quote_name |
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|
260 |
output = ['%s %s;' % (style.SQL_KEYWORD('DROP TABLE'), |
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changeset
|
261 |
style.SQL_TABLE(qn(model._meta.db_table)))] |
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Load ../vendor/django into trunk/app/django.
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changeset
|
262 |
if model in references_to_delete: |
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changeset
|
263 |
output.extend(self.sql_remove_table_constraints(model, references_to_delete, style)) |
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diff
changeset
|
264 |
|
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Load ../vendor/django into trunk/app/django.
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changeset
|
265 |
if model._meta.has_auto_field: |
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Load ../vendor/django into trunk/app/django.
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changeset
|
266 |
ds = self.connection.ops.drop_sequence_sql(model._meta.db_table) |
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Load ../vendor/django into trunk/app/django.
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changeset
|
267 |
if ds: |
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Load ../vendor/django into trunk/app/django.
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changeset
|
268 |
output.append(ds) |
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Load ../vendor/django into trunk/app/django.
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changeset
|
269 |
return output |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
270 |
|
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Load ../vendor/django into trunk/app/django.
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changeset
|
271 |
def sql_remove_table_constraints(self, model, references_to_delete, style): |
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Load ../vendor/django into trunk/app/django.
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|
272 |
from django.db.backends.util import truncate_name |
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Load ../vendor/django into trunk/app/django.
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changeset
|
273 |
|
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changeset
|
274 |
output = [] |
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Load ../vendor/django into trunk/app/django.
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|
275 |
qn = self.connection.ops.quote_name |
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Load ../vendor/django into trunk/app/django.
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changeset
|
276 |
for rel_class, f in references_to_delete[model]: |
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Load ../vendor/django into trunk/app/django.
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|
277 |
table = rel_class._meta.db_table |
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Load ../vendor/django into trunk/app/django.
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|
278 |
col = f.column |
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Load ../vendor/django into trunk/app/django.
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|
279 |
r_table = model._meta.db_table |
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Load ../vendor/django into trunk/app/django.
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|
280 |
r_col = model._meta.get_field(f.rel.field_name).column |
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Load ../vendor/django into trunk/app/django.
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|
281 |
r_name = '%s_refs_%s_%x' % (col, r_col, abs(hash((table, r_table)))) |
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Load ../vendor/django into trunk/app/django.
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changeset
|
282 |
output.append('%s %s %s %s;' % \ |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
283 |
(style.SQL_KEYWORD('ALTER TABLE'), |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
284 |
style.SQL_TABLE(qn(table)), |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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diff
changeset
|
285 |
style.SQL_KEYWORD(self.connection.ops.drop_foreignkey_sql()), |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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diff
changeset
|
286 |
style.SQL_FIELD(truncate_name(r_name, self.connection.ops.max_name_length())))) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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diff
changeset
|
287 |
del references_to_delete[model] |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
288 |
return output |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
289 |
|
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
290 |
def sql_destroy_many_to_many(self, model, f, style): |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
291 |
"Returns the DROP TABLE statements for a single m2m field" |
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Load ../vendor/django into trunk/app/django.
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changeset
|
292 |
qn = self.connection.ops.quote_name |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
293 |
output = [] |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
294 |
if f.creates_table: |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
295 |
output.append("%s %s;" % (style.SQL_KEYWORD('DROP TABLE'), |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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diff
changeset
|
296 |
style.SQL_TABLE(qn(f.m2m_db_table())))) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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diff
changeset
|
297 |
ds = self.connection.ops.drop_sequence_sql("%s_%s" % (model._meta.db_table, f.column)) |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
298 |
if ds: |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
299 |
output.append(ds) |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
300 |
return output |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
301 |
|
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
302 |
def create_test_db(self, verbosity=1, autoclobber=False): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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changeset
|
303 |
""" |
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Load ../vendor/django into trunk/app/django.
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diff
changeset
|
304 |
Creates a test database, prompting the user for confirmation if the |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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diff
changeset
|
305 |
database already exists. Returns the name of the test database created. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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parents:
54
diff
changeset
|
306 |
""" |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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parents:
54
diff
changeset
|
307 |
if verbosity >= 1: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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parents:
54
diff
changeset
|
308 |
print "Creating test database..." |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
309 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
310 |
test_database_name = self._create_test_db(verbosity, autoclobber) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
311 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
312 |
self.connection.close() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
313 |
settings.DATABASE_NAME = test_database_name |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
314 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
315 |
call_command('syncdb', verbosity=verbosity, interactive=False) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
316 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
317 |
if settings.CACHE_BACKEND.startswith('db://'): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
318 |
cache_name = settings.CACHE_BACKEND[len('db://'):] |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
319 |
call_command('createcachetable', cache_name) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
320 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
321 |
# Get a cursor (even though we don't need one yet). This has |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
322 |
# the side effect of initializing the test database. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
323 |
cursor = self.connection.cursor() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
324 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
325 |
return test_database_name |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
326 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
327 |
def _create_test_db(self, verbosity, autoclobber): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
328 |
"Internal implementation - creates the test db tables." |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
329 |
suffix = self.sql_table_creation_suffix() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
330 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
331 |
if settings.TEST_DATABASE_NAME: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
332 |
test_database_name = settings.TEST_DATABASE_NAME |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
333 |
else: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
334 |
test_database_name = TEST_DATABASE_PREFIX + settings.DATABASE_NAME |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
335 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
336 |
qn = self.connection.ops.quote_name |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
337 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
338 |
# Create the test database and connect to it. We need to autocommit |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
339 |
# if the database supports it because PostgreSQL doesn't allow |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
340 |
# CREATE/DROP DATABASE statements within transactions. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
341 |
cursor = self.connection.cursor() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
342 |
self.set_autocommit() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
343 |
try: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
344 |
cursor.execute("CREATE DATABASE %s %s" % (qn(test_database_name), suffix)) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
345 |
except Exception, e: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
346 |
sys.stderr.write("Got an error creating the test database: %s\n" % e) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
347 |
if not autoclobber: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
348 |
confirm = raw_input("Type 'yes' if you would like to try deleting the test database '%s', or 'no' to cancel: " % test_database_name) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
349 |
if autoclobber or confirm == 'yes': |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
350 |
try: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
351 |
if verbosity >= 1: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
352 |
print "Destroying old test database..." |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
353 |
cursor.execute("DROP DATABASE %s" % qn(test_database_name)) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
354 |
if verbosity >= 1: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
355 |
print "Creating test database..." |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
356 |
cursor.execute("CREATE DATABASE %s %s" % (qn(test_database_name), suffix)) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
357 |
except Exception, e: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
358 |
sys.stderr.write("Got an error recreating the test database: %s\n" % e) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
359 |
sys.exit(2) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
360 |
else: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
361 |
print "Tests cancelled." |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
362 |
sys.exit(1) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
363 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
364 |
return test_database_name |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
365 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
366 |
def destroy_test_db(self, old_database_name, verbosity=1): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
367 |
""" |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
368 |
Destroy a test database, prompting the user for confirmation if the |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
369 |
database already exists. Returns the name of the test database created. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
370 |
""" |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
371 |
if verbosity >= 1: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
372 |
print "Destroying test database..." |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
373 |
self.connection.close() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
374 |
test_database_name = settings.DATABASE_NAME |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
375 |
settings.DATABASE_NAME = old_database_name |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
376 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
377 |
self._destroy_test_db(test_database_name, verbosity) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
378 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
379 |
def _destroy_test_db(self, test_database_name, verbosity): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
380 |
"Internal implementation - remove the test db tables." |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
381 |
# Remove the test database to clean up after |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
382 |
# ourselves. Connect to the previous database (not the test database) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
383 |
# to do so, because it's not allowed to delete a database while being |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
384 |
# connected to it. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
385 |
cursor = self.connection.cursor() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
386 |
self.set_autocommit() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
387 |
time.sleep(1) # To avoid "database is being accessed by other users" errors. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
388 |
cursor.execute("DROP DATABASE %s" % self.connection.ops.quote_name(test_database_name)) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
389 |
self.connection.close() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
390 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
391 |
def set_autocommit(self): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
392 |
"Make sure a connection is in autocommit mode." |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
393 |
if hasattr(self.connection.connection, "autocommit"): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
394 |
if callable(self.connection.connection.autocommit): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
395 |
self.connection.connection.autocommit(True) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
396 |
else: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
397 |
self.connection.connection.autocommit = True |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
398 |
elif hasattr(self.connection.connection, "set_isolation_level"): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
399 |
self.connection.connection.set_isolation_level(0) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
400 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
401 |
def sql_table_creation_suffix(self): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
402 |
"SQL to append to the end of the test table creation statements" |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
403 |
return '' |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
54
diff
changeset
|
404 |