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Class ::xo::db::postgresql
::xo::db::postgresql create ...
Defined in
Class Relations
- class: ::xotcl::Class
- superclass: ::xo::db::SQL
- subclass: ::xo::db::DB-postgresql, ::xo::db::DBI-postgresql
::xotcl::Class create ::xo::db::postgresql \ -superclass ::xo::db::SQLMethods (to be applied on instances)
get_all_package_functions (scripted)
<instance of xo::db::postgresql> get_all_package_functions
- Testcases:
- xotcl_core_tutorial_2, xotcl-core
# # Load definitions in one step from function args; only for # those definitions where we do not have function args, we parse # the function arg aliases. # set definitions [::xo::dc list_of_lists get_all_package_functions0 { select args.function, args.arg_name, args.arg_default from acs_function_args args order by function, arg_seq }] set last_function "" set function_args {} foreach definition $definitions { lassign $definition function arg_name default if {$last_function ne "" && $last_function ne $function} { set ::xo::db::fnargs($last_function) $function_args #puts stderr "$last_function [list $function_args]" set function_args {} } lappend function_args [list $arg_name $default] set last_function $function } set ::xo::db::fnargs($last_function) $function_args #puts stderr "$last_function [list $function_args]" ns_log notice "loaded [array size ::xo::db::fnargs] definitions from function args" #ns_log notice "... [lsort [array names ::xo::db::fnargs *__*]]" # # Get all package functions (package name, object name) from PostgreSQL # system catalogs. # return [::xo::dc list_of_lists [self proc] { select distinct upper(substring(proname from 0 for position('__' in proname))) as package_name, upper(substring(proname from position('__' in proname)+2)) as object_name from pg_proc where strpos(proname,'__') > 1 }]map_datatype (scripted)
<instance of xo::db::postgresql> map_datatype
- Testcases:
- xotcl_core_tutorial_2, xotcl-core
switch -- $type { string { set type text } long_text { set type text } date { set type "timestamp with timezone" } ltree { set type [expr {[::xo::dc has_ltree] ? "ltree" : "text" }] } default { return [next] } } return $typenextval (scripted)
<instance of xo::db::postgresql> nextval
- Testcases:
- xotcl_core_tutorial_4, xotcl-core, test_cr_items
if {![info exists ::db::sequences]} { ns_log notice "-- creating per thread sequence table" foreach s [::xo::dc list relnames "select relname from pg_class where relkind = 'S'"] { set ::db::sequences($s) 1 } } if {[info exists ::db::sequences(t_$sequence)]} { #ns_log notice "-- found t_$sequence" set sequenceName t_$sequence set nextval [::xo::dc get_value nextval "select nextval(:sequenceName)"] } elseif {[info exists ::db::sequences($sequence)]} { #ns_log notice "-- found $sequence" set sequenceName $sequence set nextval [::xo::dc get_value nextval "select nextval(:sequenceName)"] } elseif { [::xo::dc 0or1row nextval_sequence { select nextval(:sequence) as nextval where (select relkind from pg_class where relname = :sequence) = 'S' }]} { # # We do not have an according sequence-table. Use the system catalog to check # for the sequence # # ... the query sets nextval if it succeeds # } else { # # finally, there might be a view with a nextval # ns_log debug "db_nextval: sequence($sequence) is not a real sequence. Perhaps it uses the view hack." set nextval [::xo::dc get_value nextval "select nextval from :sequence"] } return $nextvalselect (scripted)
<instance of xo::db::postgresql> select
- Testcases:
- xotcl_core_tutorial_2, xotcl-core
set where_clause [expr {$where ne "" ? "WHERE $where" : ""}] set offset_clause [expr {$offset ne "" ? "OFFSET $offset" : ""}] set limit_clause [expr {$limit ne "" ? "LIMIT $limit" : ""}] set order_clause [expr {$orderby ne "" ? "ORDER BY $orderby" : ""}] set group_clause [expr {$groupby ne "" ? "GROUP BY $groupby" : ""}] return "SELECT $vars FROM $from $where_clause $group_clause $order_clause $limit_clause $offset_clause"Variables
::xo::db::postgresql set __default_metaclass ::xotcl::Class ::xo::db::postgresql set __default_superclass ::xotcl::Object
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