version 1.8, 2004/04/16 21:43:56
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version 1.15, 2006/12/29 19:15:28
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Line 30 package LONCAPA::lonmetadata;
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Line 30 package LONCAPA::lonmetadata;
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use strict; |
use strict; |
use DBI; |
use DBI; |
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use vars qw($Metadata_Table_Description $Portfolio_metadata_table_description |
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$Portfolio_access_table_description $Fulltext_indicies $Portfolio_metadata_indices $Portfolio_access_indices $Portfolio_addedfields_table_description $Portfolio_addedfields_indices); |
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
Line 75 creationdate DATETIME,
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Line 77 creationdate DATETIME,
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lastrevisiondate DATETIME, |
lastrevisiondate DATETIME, |
owner TEXT, |
owner TEXT, |
copyright TEXT, |
copyright TEXT, |
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domain TEXT |
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FULLTEXT idx_title (title), |
FULLTEXT idx_title (title), |
FULLTEXT idx_author (author), |
FULLTEXT idx_author (author), |
Line 95 TYPE=MYISAM;
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Line 98 TYPE=MYISAM;
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
my @Metadata_Table_Description = |
$Metadata_Table_Description = |
( |
[ |
{ name => 'title', type=>'TEXT'}, |
{ name => 'title', type=>'TEXT'}, |
{ name => 'author', type=>'TEXT'}, |
{ name => 'author', type=>'TEXT'}, |
{ name => 'subject', type=>'TEXT'}, |
{ name => 'subject', type=>'TEXT'}, |
Line 111 my @Metadata_Table_Description =
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Line 114 my @Metadata_Table_Description =
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{ name => 'lastrevisiondate', type=>'DATETIME'}, |
{ name => 'lastrevisiondate', type=>'DATETIME'}, |
{ name => 'owner', type=>'TEXT'}, |
{ name => 'owner', type=>'TEXT'}, |
{ name => 'copyright', type=>'TEXT'}, |
{ name => 'copyright', type=>'TEXT'}, |
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{ name => 'domain', type=>'TEXT'}, |
#-------------------------------------------------- |
#-------------------------------------------------- |
{ name => 'dependencies', type=>'TEXT'}, |
{ name => 'dependencies', type=>'TEXT'}, |
{ name => 'modifyinguser', type=>'TEXT'}, |
{ name => 'modifyinguser', type=>'TEXT'}, |
Line 133 my @Metadata_Table_Description =
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Line 137 my @Metadata_Table_Description =
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{ name => 'avetries_list', type=>'TEXT'}, |
{ name => 'avetries_list', type=>'TEXT'}, |
{ name => 'difficulty', type=>'FLOAT'}, |
{ name => 'difficulty', type=>'FLOAT'}, |
{ name => 'difficulty_list',type=>'TEXT'}, |
{ name => 'difficulty_list',type=>'TEXT'}, |
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{ name => 'disc', type=>'FLOAT'}, |
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{ name => 'disc_list', type=>'TEXT'}, |
{ name => 'clear', type=>'FLOAT'}, |
{ name => 'clear', type=>'FLOAT'}, |
{ name => 'technical', type=>'FLOAT'}, |
{ name => 'technical', type=>'FLOAT'}, |
{ name => 'correct', type=>'FLOAT'}, |
{ name => 'correct', type=>'FLOAT'}, |
Line 140 my @Metadata_Table_Description =
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Line 146 my @Metadata_Table_Description =
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{ name => 'depth', type=>'FLOAT'}, |
{ name => 'depth', type=>'FLOAT'}, |
{ name => 'hostname', type=> 'TEXT'}, |
{ name => 'hostname', type=> 'TEXT'}, |
#-------------------------------------------------- |
#-------------------------------------------------- |
); |
]; |
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my @Fulltext_indicies = qw/ |
$Fulltext_indicies = [ qw/ |
title |
title |
author |
author |
subject |
subject |
Line 154 my @Fulltext_indicies = qw/
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Line 160 my @Fulltext_indicies = qw/
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mime |
mime |
language |
language |
owner |
owner |
copyright/; |
copyright/ ]; |
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
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$Portfolio_metadata_table_description = |
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[ |
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{ name => 'title', type=>'TEXT'}, |
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{ name => 'author', type=>'TEXT'}, |
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{ name => 'subject', type=>'TEXT'}, |
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{ name => 'url', type=>'TEXT', restrictions => 'NOT NULL' }, |
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{ name => 'keywords', type=>'TEXT'}, |
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{ name => 'version', type=>'TEXT'}, |
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{ name => 'notes', type=>'TEXT'}, |
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{ name => 'abstract', type=>'TEXT'}, |
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{ name => 'mime', type=>'TEXT'}, |
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{ name => 'language', type=>'TEXT'}, |
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{ name => 'creationdate', type=>'DATETIME'}, |
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{ name => 'lastrevisiondate', type=>'DATETIME'}, |
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{ name => 'owner', type=>'TEXT'}, |
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{ name => 'copyright', type=>'TEXT'}, |
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{ name => 'domain', type=>'TEXT'}, |
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{ name => 'groupname', type=>'TEXT'}, |
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{ name => 'courserestricted', type=>'TEXT'}, |
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{ name => 'addedfieldnames', type=>'TEXT'}, |
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{ name => 'addedfieldvalues', type=>'TEXT'}, |
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#-------------------------------------------------- |
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{ name => 'dependencies', type=>'TEXT'}, |
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{ name => 'modifyinguser', type=>'TEXT'}, |
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{ name => 'authorspace', type=>'TEXT'}, |
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{ name => 'lowestgradelevel', type=>'INT'}, |
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{ name => 'highestgradelevel', type=>'INT'}, |
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{ name => 'standards', type=>'TEXT'}, |
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{ name => 'hostname', type=> 'TEXT'}, |
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#-------------------------------------------------- |
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]; |
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$Portfolio_metadata_indices = [qw/ |
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title |
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author |
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subject |
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url |
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keywords |
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version |
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notes |
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abstract |
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mime |
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language |
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owner/]; |
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###################################################################### |
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###################################################################### |
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$Portfolio_access_table_description = |
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[ |
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{ name => 'url', type=>'TEXT', restrictions => 'NOT NULL' }, |
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{ name => 'keynum', type=>'TEXT', restrictions => 'NOT NULL' }, |
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{ name => 'scope', type=>'TEXT'}, |
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{ name => 'start', type=>'DATETIME'}, |
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{ name => 'end', type=>'DATETIME'}, |
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]; |
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$Portfolio_access_indices = [qw/ |
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url |
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keynum |
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scope |
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start |
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end/]; |
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###################################################################### |
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###################################################################### |
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$Portfolio_addedfields_table_description = |
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[ |
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{ name => 'url', type=>'TEXT', restrictions => 'NOT NULL' }, |
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{ name => 'field', type=>'TEXT', restrictions => 'NOT NULL' }, |
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{ name => 'courserestricted', type=>'TEXT', restrictions => 'NOT NULL' }, |
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{ name => 'value', type=>'TEXT'}, |
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]; |
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$Portfolio_addedfields_indices = [qw/ |
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url |
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field |
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value |
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courserestricted/]; |
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###################################################################### |
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###################################################################### |
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=pod |
=pod |
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Line 172 of the metadata table(s).
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Line 262 of the metadata table(s).
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
sub describe_metadata_storage { |
sub describe_metadata_storage { |
return (\@Metadata_Table_Description,\@Fulltext_indicies); |
my ($tabletype) = @_; |
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my %table_description = ( |
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metadata => $Metadata_Table_Description, |
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portfolio_metadata => $Portfolio_metadata_table_description, |
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portfolio_access => $Portfolio_access_table_description, |
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portfolio_addedfields => $Portfolio_addedfields_table_description, |
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); |
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my %index_description = ( |
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metadata => $Fulltext_indicies, |
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portfolio_metadata => $Portfolio_metadata_indices, |
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portfolio_access => $Portfolio_access_indices, |
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portfolio_addedfields => $Portfolio_addedfields_indices, |
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); |
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if ($tabletype eq 'portfolio_search') { |
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my @portfolio_search_table = @{$table_description{portfolio_metadata}}; |
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foreach my $item (@{$table_description{portfolio_access}}) { |
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if (ref($item) eq 'HASH') { |
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if ($item->{'name'} eq 'url') { |
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next; |
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} |
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} |
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push(@portfolio_search_table,$item); |
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} |
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my @portfolio_search_indices = @{$index_description{portfolio_metadata}}; |
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push(@portfolio_search_indices,('scope','keynum')); |
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return (\@portfolio_search_table,\@portfolio_search_indices); |
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} else { |
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return ($table_description{$tabletype},$index_description{$tabletype}); |
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} |
} |
} |
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###################################################################### |
###################################################################### |
Line 193 metadata storage to be initialized.
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Line 311 metadata storage to be initialized.
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
sub create_metadata_storage { |
sub create_metadata_storage { |
my ($tablename) = @_; |
my ($tablename,$tabletype) = @_; |
$tablename = 'metadata' if (! defined($tablename)); |
$tablename = 'metadata' if (! defined($tablename)); |
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$tabletype = 'metadata' if (! defined($tabletype)); |
my $request = "CREATE TABLE IF NOT EXISTS ".$tablename." "; |
my $request = "CREATE TABLE IF NOT EXISTS ".$tablename." "; |
# |
# |
# Process the columns (this code is stolen from lonmysql.pm) |
# Process the columns (this code is stolen from lonmysql.pm) |
my @Columns; |
my @Columns; |
my $col_des; # mysql column description |
my $col_des; # mysql column description |
foreach my $coldata (@Metadata_Table_Description) { |
my ($table_columns,$table_indices) = |
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&describe_metadata_storage($tabletype); |
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my %coltype; |
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foreach my $coldata (@{$table_columns}) { |
my $column = $coldata->{'name'}; |
my $column = $coldata->{'name'}; |
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$coltype{$column} = $coldata->{'type'}; |
$col_des = ''; |
$col_des = ''; |
if (lc($coldata->{'type'}) =~ /(enum|set)/) { # 'enum' or 'set' |
if (lc($coldata->{'type'}) =~ /(enum|set)/) { # 'enum' or 'set' |
$col_des.=$column." ".$coldata->{'type'}."('". |
$col_des.=$column." ".$coldata->{'type'}."('". |
Line 227 sub create_metadata_storage {
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Line 350 sub create_metadata_storage {
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# skip blank items. |
# skip blank items. |
push (@Columns,$col_des) if ($col_des ne ''); |
push (@Columns,$col_des) if ($col_des ne ''); |
} |
} |
foreach my $colname (@Fulltext_indicies) { |
foreach my $colname (@{$table_indices}) { |
my $text = 'FULLTEXT idx_'.$colname.' ('.$colname.')'; |
my $text; |
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if ($coltype{$colname} eq 'TEXT') { |
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$text = 'FULLTEXT '; |
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} else { |
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$text = 'INDEX '; |
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} |
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$text .= 'idx_'.$colname.' ('.$colname.')'; |
push (@Columns,$text); |
push (@Columns,$text); |
} |
} |
$request .= "(".join(", ",@Columns).") TYPE=MyISAM"; |
$request .= "(".join(", ",@Columns).") TYPE=MyISAM"; |
Line 242 sub create_metadata_storage {
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Line 371 sub create_metadata_storage {
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=item store_metadata() |
=item store_metadata() |
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Inputs: database handle ($dbh), a table name, and a hash or hash reference |
Inputs: database handle ($dbh), a table name, table type and a hash or hash |
containing the metadata for a single resource. |
reference containing the metadata for a single resource. |
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Returns: 1 on success, 0 on failure to store. |
Returns: 1 on success, 0 on failure to store. |
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Line 259 Returns: 1 on success, 0 on failure to s
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Line 388 Returns: 1 on success, 0 on failure to s
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## |
## |
## In most scripts, this will work fine. If the dbi is going to be |
## In most scripts, this will work fine. If the dbi is going to be |
## dropped and (possibly) later recreated, call &clear_sth. Yes it |
## dropped and (possibly) later recreated, call &clear_sth. Yes it |
## is annoying but $sth appearantly does not have a link back to the |
## is annoying but $sth apparently does not have a link back to the |
## $dbh, so we can't check our validity. |
## $dbh, so we can't check our validity. |
## |
## |
my $sth = undef; |
my $sth = undef; |
my $sth_table = undef; |
my $sth_table = undef; |
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sub create_statement_handler { |
sub create_statement_handler { |
my $dbh = shift(); |
my ($dbh,$tablename,$tabletype) = @_; |
my $tablename = shift(); |
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$tablename = 'metadata' if (! defined($tablename)); |
$tablename = 'metadata' if (! defined($tablename)); |
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$tabletype = 'metadata' if (! defined($tabletype)); |
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my ($table_columns,$table_indices) = |
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&describe_metadata_storage($tabletype); |
$sth_table = $tablename; |
$sth_table = $tablename; |
my $request = 'INSERT INTO '.$tablename.' VALUES('; |
my $request = 'INSERT INTO '.$tablename.' VALUES('; |
foreach (@Metadata_Table_Description) { |
foreach (@{$table_columns}) { |
$request .= '?,'; |
$request .= '?,'; |
} |
} |
chop $request; |
chop $request; |
Line 283 sub create_statement_handler {
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Line 414 sub create_statement_handler {
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sub clear_sth { $sth=undef; $sth_table=undef;} |
sub clear_sth { $sth=undef; $sth_table=undef;} |
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sub store_metadata { |
sub store_metadata { |
my $dbh = shift(); |
my ($dbh,$tablename,$tabletype,@Metadata)=@_; |
my $tablename = shift(); |
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my $errors = ''; |
my $errors = ''; |
if (! defined($sth) || |
if (! defined($sth) || |
( defined($tablename) && ($sth_table ne $tablename)) || |
( defined($tablename) && ($sth_table ne $tablename)) || |
(! defined($tablename) && $sth_table ne 'metadata')) { |
(! defined($tablename) && $sth_table ne 'metadata')) { |
&create_statement_handler($dbh,$tablename); |
&create_statement_handler($dbh,$tablename,$tabletype); |
} |
} |
my $successcount = 0; |
my $successcount = 0; |
while (my $mdata = shift()) { |
if (! defined($tabletype)) { |
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$tabletype = 'metadata'; |
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} |
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my ($table_columns,$table_indices) = |
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&describe_metadata_storage($tabletype); |
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foreach my $mdata (@Metadata) { |
next if (ref($mdata) ne "HASH"); |
next if (ref($mdata) ne "HASH"); |
my @MData; |
my @MData; |
foreach my $field (@Metadata_Table_Description) { |
foreach my $field (@{$table_columns}) { |
if (exists($mdata->{$field->{'name'}})) { |
my $fname = $field->{'name'}; |
if ($mdata->{$field->{'name'}} eq 'nan') { |
if (exists($mdata->{$fname}) && |
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defined($mdata->{$fname}) && |
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$mdata->{$fname} ne '') { |
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if ($mdata->{$fname} eq 'nan' || |
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$mdata->{$fname} eq '') { |
push(@MData,'NULL'); |
push(@MData,'NULL'); |
} else { |
} else { |
push(@MData,$mdata->{$field->{'name'}}); |
push(@MData,$mdata->{$fname}); |
} |
} |
} else { |
} else { |
push(@MData,undef); |
push(@MData,undef); |
Line 312 sub store_metadata {
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Line 451 sub store_metadata {
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} else { |
} else { |
$errors = join(',',$errors,$sth->errstr); |
$errors = join(',',$errors,$sth->errstr); |
} |
} |
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$errors =~ s/^,//; |
} |
} |
if (wantarray()) { |
if (wantarray()) { |
return ($successcount,$errors); |
return ($successcount,$errors); |
Line 340 The array reference is the same one retu
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Line 480 The array reference is the same one retu
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
sub lookup_metadata { |
sub lookup_metadata { |
my ($dbh,$condition,$fetchparameter) = @_; |
my ($dbh,$condition,$fetchparameter,$tablename) = @_; |
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$tablename = 'metadata' if (! defined($tablename)); |
my $error; |
my $error; |
my $returnvalue=[]; |
my $returnvalue=[]; |
my $request = 'SELECT * FROM metadata'; |
my $request = 'SELECT * FROM '.$tablename; |
if (defined($condition)) { |
if (defined($condition)) { |
$request .= ' WHERE '.$condition; |
$request .= ' WHERE '.$condition; |
} |
} |
Line 372 sub lookup_metadata {
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Line 513 sub lookup_metadata {
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=item delete_metadata() |
=item delete_metadata() |
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Not implemented yet |
Removes a single metadata record, based on its url. |
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Inputs: $dbh, the database handler. |
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$tablename, the name of the metadata table to remove from. default: 'metadata' |
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$url, the url of the resource to remove from the metadata database. |
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Returns: undef on success, dbh errorstr on failure. |
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=cut |
=cut |
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
sub delete_metadata {} |
sub delete_metadata { |
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my ($dbh,$tablename,$url) = @_; |
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$tablename = 'metadata' if (! defined($tablename)); |
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my $error; |
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my $delete_command = 'DELETE FROM '.$tablename.' WHERE url='. |
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$dbh->quote($url); |
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$dbh->do($delete_command); |
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if ($dbh->err) { |
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$error = $dbh->errstr(); |
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} |
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return $error; |
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} |
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###################################################################### |
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###################################################################### |
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=pod |
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=item update_metadata |
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Updates metadata record in mysql database. It does not matter if the record |
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currently exists. Fields not present in the new metadata will be taken |
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from the current record, if it exists. To delete an entry for a key, set |
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it to "" or undef. |
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Inputs: |
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$dbh, database handle |
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$newmetadata, hash reference containing the new metadata |
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$tablename, metadata table name. Defaults to 'metadata'. |
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$tabletype, type of table (metadata, portfolio_metadata, portfolio_access) |
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Returns: |
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$error on failure. undef on success. |
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=cut |
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###################################################################### |
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###################################################################### |
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sub update_metadata { |
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my ($dbh,$tablename,$tabletype,$newmetadata)=@_; |
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my $error; |
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$tablename = 'metadata' if (! defined($tablename)); |
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$tabletype = 'metadata' if (! defined($tabletype)); |
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if (! exists($newmetadata->{'url'})) { |
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$error = 'Unable to update: no url specified'; |
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} |
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return $error if (defined($error)); |
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# |
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# Retrieve current values |
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my $row; |
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($error,$row) = &lookup_metadata($dbh, |
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' url='.$dbh->quote($newmetadata->{'url'}), |
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undef,$tablename); |
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return $error if ($error); |
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my %metadata = &LONCAPA::lonmetadata::metadata_col_to_hash($tabletype,@{$row->[0]}); |
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# |
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# Update metadata values |
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while (my ($key,$value) = each(%$newmetadata)) { |
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$metadata{$key} = $value; |
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} |
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# |
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# Delete old data (deleting a nonexistant record does not produce an error. |
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$error = &delete_metadata($dbh,$tablename,$newmetadata->{'url'}); |
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return $error if (defined($error)); |
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# |
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# Store updated metadata |
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my $success; |
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($success,$error) = &store_metadata($dbh,$tablename,$tabletype,\%metadata); |
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return $error; |
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} |
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
Line 397 passed in as values
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Line 613 passed in as values
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
sub metadata_col_to_hash { |
sub metadata_col_to_hash { |
my @cols=@_; |
my ($tabletype,@cols)=@_; |
my %hash=(); |
my %hash=(); |
for (my $i=0; $i<=$#Metadata_Table_Description;$i++) { |
my ($columns,$indices) = &describe_metadata_storage($tabletype); |
$hash{$Metadata_Table_Description[$i]->{'name'}}=$cols[$i]; |
for (my $i=0; $i<@{$columns};$i++) { |
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$hash{$columns->[$i]->{'name'}}=$cols[$i]; |
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unless ($hash{$columns->[$i]->{'name'}}) { |
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if ($columns->[$i]->{'type'} eq 'TEXT') { |
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$hash{$columns->[$i]->{'name'}}=''; |
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} elsif ($columns->[$i]->{'type'} eq 'DATETIME') { |
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$hash{$columns->[$i]->{'name'}}='0000-00-00 00:00:00'; |
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} else { |
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$hash{$columns->[$i]->{'name'}}=0; |
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} |
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} |
} |
} |
return %hash; |
return %hash; |
} |
} |
Line 429 The nohist_resevaldata.db file has the f
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Line 655 The nohist_resevaldata.db file has the f
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$username@$dom___$resource___depth |
$username@$dom___$resource___depth |
$username@$dom___$resource___technical |
$username@$dom___$resource___technical |
$username@$dom___$resource___helpful |
$username@$dom___$resource___helpful |
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$username@$dom___$resource___correct |
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Course Context Data |
Course Context Data |
------------------------------------------ |
------------------------------------------ |
Line 498 sub process_reseval_data {
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Line 725 sub process_reseval_data {
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# |
# |
# Statistics: $source is course id |
# Statistics: $source is course id |
$DynamicData{$file}->{'statistics'}->{$source}->{$type}=$value; |
$DynamicData{$file}->{'statistics'}->{$source}->{$type}=$value; |
} elsif ($type =~ /^(clear|comments|depth|technical|helpful)$/){ |
} elsif ($type =~ /^(clear|comments|depth|technical|helpful|correct)$/){ |
# |
# |
# Evaluation $source is username, check if they evaluated it |
# Evaluation $source is username, check if they evaluated it |
# more than once. If so, pad the entry with a space. |
# more than once. If so, pad the entry with a space. |
Line 673 sub process_dynamic_metadata {
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Line 900 sub process_dynamic_metadata {
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if (exists($resdata->{'stats'})) { |
if (exists($resdata->{'stats'})) { |
$data{'stats'} = $resdata->{'stats'}; |
$data{'stats'} = $resdata->{'stats'}; |
} |
} |
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if (exists($DynamicData->{'domain'})) { |
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$data{'domain'} = $DynamicData->{'domain'}; |
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} |
# |
# |
return %data; |
return %data; |
} |
} |
Line 700 sub dynamic_metadata_storage {
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Line 930 sub dynamic_metadata_storage {
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###################################################################### |
###################################################################### |
###################################################################### |
###################################################################### |
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|
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## Utility originally in searchcat.pl. Moved to be more widely available. |
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## |
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## &sqltime($timestamp) |
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## |
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## Convert perl $timestamp to MySQL time. MySQL expects YYYY-MM-DD HH:MM:SS |
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## |
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sub sqltime { |
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my ($time) = @_; |
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my $mysqltime; |
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if ($time =~ |
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/(\d+)-(\d+)-(\d+) # YYYY-MM-DD |
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\s # a space |
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(\d+):(\d+):(\d+) # HH:MM::SS |
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/x ) { |
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# Some of the .meta files have the time in mysql |
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# format already, so just make sure they are 0 padded and |
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# pass them back. |
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$mysqltime = sprintf('%04d-%02d-%02d %02d:%02d:%02d', |
|
$1,$2,$3,$4,$5,$6); |
|
} elsif ($time =~ /^\d+$/) { |
|
my @TimeData = gmtime($time); |
|
# Alter the month to be 1-12 instead of 0-11 |
|
$TimeData[4]++; |
|
# Alter the year to be from 0 instead of from 1900 |
|
$TimeData[5]+=1900; |
|
$mysqltime = sprintf('%04d-%02d-%02d %02d:%02d:%02d', |
|
@TimeData[5,4,3,2,1,0]); |
|
} elsif (! defined($time) || $time == 0) { |
|
$mysqltime = 0; |
|
} else { |
|
&log(0," sqltime:Unable to decode time ".$time); |
|
$mysqltime = 0; |
|
} |
|
return $mysqltime; |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
## |
## |
## The usual suspects, repeated here to reduce dependency hell |
## The usual suspects, repeated here to reduce dependency hell |
## |
## |
Line 717 sub escape {
|
Line 986 sub escape {
|
return $str; |
return $str; |
} |
} |
|
|
|
|
|
|
|
|
1; |
1; |
|
|
__END__; |
__END__; |