Commit | Line | Data |
4eb28bc3 |
1 | package SQL::Translator::Parser::DBI::SQLServer; |
2 | |
4eb28bc3 |
3 | =head1 NAME |
4 | |
5 | SQL::Translator::Parser::DBI::SQLServer - parser for SQL Server through DBD::ODBC |
6 | |
7 | =head1 SYNOPSIS |
8 | |
9 | See SQL::Translator::Parser::DBI. |
10 | |
11 | =head1 DESCRIPTION |
12 | |
13 | Uses DBI Catalog Methods. |
14 | |
15 | =cut |
16 | |
17 | use strict; |
f27f9229 |
18 | use warnings; |
4eb28bc3 |
19 | use DBI; |
20 | use SQL::Translator::Schema; |
21 | use Data::Dumper; |
22 | |
0c04c5a2 |
23 | our ( $DEBUG, @EXPORT_OK ); |
24 | our $VERSION = '1.59'; |
4eb28bc3 |
25 | $DEBUG = 0 unless defined $DEBUG; |
26 | |
27 | no strict 'refs'; |
28 | |
4eb28bc3 |
29 | sub parse { |
30 | my ( $tr, $dbh ) = @_; |
31 | |
32 | if ($dbh->{FetchHashKeyName} ne 'NAME_uc') { |
33 | warn "setting dbh attribute {FetchHashKeyName} to NAME_uc"; |
34 | $dbh->{FetchHashKeyName} = 'NAME_uc'; |
35 | } |
36 | |
37 | if ($dbh->{ChopBlanks} != 1) { |
38 | warn "setting dbh attribute {ChopBlanks} to 1"; |
39 | $dbh->{ChopBlanks} = 1; |
40 | } |
41 | |
42 | my $schema = $tr->schema; |
43 | |
44 | my ($sth, @tables, $columns); |
45 | my $stuff; |
46 | |
47 | ### Columns |
48 | |
49 | # it is much quicker to slurp back everything all at once rather |
50 | # than make repeated calls |
51 | |
52 | $sth = $dbh->column_info(undef, undef, undef, undef); |
53 | |
54 | |
55 | foreach my $c (@{$sth->fetchall_arrayref({})}) { |
56 | $columns |
57 | ->{$c->{TABLE_CAT}} |
58 | ->{$c->{TABLE_SCHEM}} |
59 | ->{$c->{TABLE_NAME}} |
60 | ->{columns} |
61 | ->{$c->{COLUMN_NAME}}= $c; |
62 | } |
63 | |
64 | ### Tables and views |
65 | |
66 | # Get a list of the tables and views. |
67 | $sth = $dbh->table_info(); |
68 | @tables = @{$sth->fetchall_arrayref({})}; |
69 | |
70 | my $h = $dbh->selectall_arrayref(q{ |
71 | SELECT o.name, colid,c.text |
72 | FROM syscomments c |
73 | JOIN sysobjects o |
74 | ON c.id = o.id |
75 | WHERE o.type ='V' |
76 | ORDER BY o.name, |
77 | c.colid |
78 | } |
79 | ); |
80 | |
81 | # View text |
82 | # I had always thought there was something 'hard' about |
83 | # reconstructing text from syscomments .. |
84 | # this seems to work fine and is certainly not complicated! |
85 | |
86 | foreach (@{$h}) { |
87 | $stuff->{view}->{$_->[0]}->{text} .= $_->[2]; |
88 | } |
89 | |
90 | #### objects with indexes. |
91 | map { |
92 | $stuff->{indexes}->{$_->[0]}++ |
93 | if defined; |
94 | } @{$dbh->selectall_arrayref("SELECT DISTINCT object_name(id) |
95 | FROM sysindexes |
d4f02954 |
96 | WHERE indid > 0 and indid < 255 and |
4eb28bc3 |
97 | name not like '_WA_Sys%'")}; |
98 | |
99 | ## slurp objects |
100 | map { |
101 | $stuff->{$_->[1]}->{$_->[0]} = $_; |
102 | } @{$dbh->selectall_arrayref("SELECT name,type, id FROM sysobjects")}; |
103 | |
104 | |
105 | ### Procedures |
106 | |
107 | # This gets legitimate procedures by used the 'supported' API: sp_stored_procedures |
108 | map { |
109 | my $n = $_->{PROCEDURE_NAME}; |
110 | $n =~ s/;\d+$//; # Ignore versions for now |
111 | $_->{name} = $n; |
112 | $stuff->{procedures}->{$n} = $_; |
113 | } values %{$dbh->selectall_hashref("sp_stored_procedures", 'PROCEDURE_NAME')}; |
114 | |
115 | |
116 | # And this blasts in the text of 'legit' stored procedures. Do |
117 | # this rather than calling sp_helptext in a loop. |
118 | |
119 | $h = $dbh->selectall_arrayref(q{ |
120 | SELECT o.name, colid,c.text |
121 | FROM syscomments c |
122 | JOIN sysobjects o |
123 | ON c.id = o.id |
8b3a5e87 |
124 | WHERE o.type in ('P', 'FN', 'TF', 'IF') |
4eb28bc3 |
125 | } |
126 | ); |
127 | |
128 | foreach (@{$h}) { |
129 | $stuff->{procedures}->{$_->[0]}->{text} .= $_->[2] |
130 | if (defined($stuff->{procedures}->{$_->[0]})); |
131 | } |
132 | |
133 | ### Defaults |
134 | ### Rules |
135 | ### Bind Defaults |
136 | ### Bind Rules |
137 | |
138 | ### Triggers |
139 | # Since the 'target' of the trigger is defined in the text, we will |
140 | # just create them independently for now rather than associating them |
141 | # with a table. |
142 | |
143 | $h = $dbh->selectall_arrayref(q{ |
144 | SELECT o.name, colid,c.text |
145 | FROM syscomments c |
146 | JOIN sysobjects o |
147 | ON c.id = o.id |
148 | JOIN sysobjects o1 |
149 | ON (o.id = o1.instrig OR o.id = o1.deltrig or o.id = o1.updtrig) |
150 | WHERE o.type ='TR' |
151 | ORDER BY o.name, |
152 | c.colid |
153 | } |
154 | ); |
155 | foreach (@{$h}) { |
156 | $stuff->{triggers}->{$_->[0]}->{text} .= $_->[2]; |
157 | } |
158 | |
159 | ### References |
160 | ### Keys |
161 | |
162 | ### Types |
163 | # Not sure what to do with these? |
164 | $stuff->{type_info_all} = $dbh->type_info_all; |
165 | |
166 | ### Tables |
167 | # According to the DBI docs, these can be |
168 | |
169 | # "TABLE" |
170 | # "VIEW" |
171 | # "SYSTEM TABLE" |
172 | # "GLOBAL TEMPORARY", |
173 | # "LOCAL TEMPORARY" |
174 | # "ALIAS" |
175 | # "SYNONYM" |
176 | |
177 | foreach my $table_info (@tables) { |
178 | next |
179 | unless (defined($table_info->{TABLE_TYPE})); |
180 | |
181 | if ($table_info->{TABLE_TYPE} eq "TABLE") { |
182 | my $table = $schema->add_table( |
183 | name => |
184 | $table_info->{TABLE_NAME}, |
185 | type => |
186 | $table_info->{TABLE_TYPE}, |
187 | ) || die $schema->error; |
188 | |
189 | # find the associated columns |
190 | |
191 | my $cols = |
192 | $columns->{$table_info->{TABLE_CAT}} |
193 | ->{$table_info->{TABLE_SCHEM}} |
194 | ->{$table_info->{TABLE_NAME}} |
195 | ->{columns}; |
196 | |
197 | foreach my $c (values %{$cols}) { |
ea93df61 |
198 | my $is_auto_increment = $c->{TYPE_NAME} =~ s#(\(\))? identity##i; |
4eb28bc3 |
199 | my $f = $table->add_field( |
200 | name => $c->{COLUMN_NAME}, |
201 | data_type => $c->{TYPE_NAME}, |
202 | order => $c->{ORDINAL_POSITION}, |
203 | size => $c->{COLUMN_SIZE}, |
204 | ) || die $table->error; |
205 | $f->is_nullable($c->{NULLABLE} == 1); |
206 | $f->is_auto_increment($is_auto_increment); |
4e0de84c |
207 | if ( defined $c->{COLUMN_DEF}) { |
ea93df61 |
208 | $c->{COLUMN_DEF} =~ s#\('?(.*?)'?\)#$1#; |
209 | $f->default_value($c->{COLUMN_DEF}); |
4e0de84c |
210 | } |
4eb28bc3 |
211 | } |
212 | |
213 | # add in primary key |
214 | my $h = $dbh->selectall_hashref("sp_pkeys |
215 | $table_info->{TABLE_NAME}", 'COLUMN_NAME'); |
216 | if (scalar keys %{$h} >= 1) { |
217 | my @c = map { |
218 | $_->{COLUMN_NAME} |
219 | } sort { |
220 | $a->{KEY_SEQ} <=> $b->{KEY_SEQ} |
221 | } values %{$h}; |
222 | |
223 | $table->primary_key(@c) |
224 | if (scalar @c); |
225 | } |
226 | |
227 | # add in foreign keys |
11b7c9a4 |
228 | $h = $dbh->selectall_hashref("sp_fkeys NULL, |
4eb28bc3 |
229 | \@fktable_name = '$table_info->{TABLE_NAME}'", 'FK_NAME'); |
ea93df61 |
230 | foreach my $fk ( values %{$h} ) { |
231 | my $constraint = $table->add_constraint( name => $fk->{FK_NAME}, |
232 | fields => [$fk->{FKCOLUMN_NAME}], |
233 | ); |
234 | $constraint->type("FOREIGN_KEY"); |
235 | $constraint->on_delete( |
236 | $fk->{DELETE_RULE} == 0 ? "CASCADE" : |
237 | $fk->{DELETE_RULE} == 1 ? "NO ACTION" : "SET_NULL" |
238 | ); |
239 | $constraint->on_update( |
240 | $fk->{UPDATE_RULE} == 0 ? "CASCADE" : |
241 | $fk->{UPDATE_RULE} == 1 ? "NO ACTION" : "SET_NULL" |
242 | ); |
243 | $constraint->reference_table($fk->{PKTABLE_NAME}); |
244 | } |
4eb28bc3 |
245 | |
246 | # add in any indexes ... how do we tell if the index has |
247 | # already been created as part of a primary key or other |
248 | # constraint? |
249 | |
250 | if (defined($stuff->{indexes}->{$table_info->{TABLE_NAME}})){ |
251 | my $h = $dbh->selectall_hashref("sp_helpindex |
252 | $table_info->{TABLE_NAME}", 'INDEX_NAME'); |
253 | foreach (values %{$h}) { |
254 | my $fields = $_->{'INDEX_KEYS'}; |
255 | $fields =~ s/\s*//g; |
256 | my $i = $table->add_index( |
257 | name => |
258 | $_->{INDEX_NAME}, |
259 | fields => $fields, |
260 | ); |
261 | if ($_->{'INDEX_DESCRIPTION'} =~ /unique/i) { |
262 | $i->type('unique'); |
263 | |
264 | # we could make this a primary key if there |
265 | # isn't already one defined and if there |
266 | # aren't any nullable columns in thisindex. |
267 | |
268 | if (!defined($table->primary_key())) { |
269 | $table->primary_key($fields) |
270 | unless grep { |
271 | $table->get_field($_)->is_nullable() |
272 | } split(/,\s*/, $fields); |
273 | } |
274 | } |
275 | } |
276 | } |
277 | } elsif ($table_info->{TABLE_TYPE} eq 'VIEW') { |
ea93df61 |
278 | next if $table_info->{TABLE_NAME} eq 'sysconstraints' |
279 | || $table_info->{TABLE_NAME} eq 'syssegments'; |
280 | next if !$stuff->{view}->{$table_info->{TABLE_NAME}}->{text}; |
4eb28bc3 |
281 | my $view = $schema->add_view( |
282 | name => |
283 | $table_info->{TABLE_NAME}, |
284 | ); |
285 | |
286 | |
287 | my $cols = |
288 | $columns->{$table_info->{TABLE_CAT}} |
289 | ->{$table_info->{TABLE_SCHEM}} |
290 | ->{$table_info->{TABLE_NAME}} |
291 | ->{columns}; |
292 | |
293 | $view->fields(map { |
294 | $_->{COLUMN_NAME} |
295 | } sort { |
296 | $a->{ORDINAL_POSITION} <=> $b->{ORDINAL_POSITION} |
297 | } values %{$cols} |
298 | ); |
299 | |
300 | $view->sql($stuff->{view}->{$table_info->{TABLE_NAME}}->{text}) |
301 | if (defined($stuff->{view}->{$table_info->{TABLE_NAME}}->{text})); |
302 | } |
303 | } |
304 | |
305 | foreach my $p (values %{$stuff->{procedures}}) { |
ea93df61 |
306 | next if !$p->{text}; |
4eb28bc3 |
307 | my $proc = $schema->add_procedure( |
308 | name => $p->{name}, |
309 | owner => $p->{PROCEDURE_OWNER}, |
310 | comments => $p->{REMARKS}, |
311 | sql => $p->{text}, |
312 | ); |
313 | |
314 | } |
315 | |
316 | ### Permissions |
317 | ### Groups |
318 | ### Users |
319 | ### Aliases |
320 | ### Logins |
321 | return 1; |
322 | } |
323 | |
324 | 1; |
325 | |
4eb28bc3 |
326 | =pod |
327 | |
328 | =head1 AUTHOR |
329 | |
330 | Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from |
331 | DBI-Sybase parser, I just tweaked it for SQLServer. Thanks. |
332 | |
333 | =head1 SEE ALSO |
334 | |
335 | DBI, DBD::ODBC, SQL::Translator::Schema. |
336 | |
337 | =cut |