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Allow use of transition tables in PG 10 triggers. Fixes #2933

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Khushboo Vashi 2018-01-03 16:25:03 +00:00 committed by Dave Page
parent 0810c681c3
commit 711fbd5144
3 changed files with 114 additions and 0 deletions
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36
web/pgadmin/browser/server_groups/servers/databases/schemas/tables/templates/trigger/sql/10_plus/create.sql Normal file
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@ -0,0 +1,36 @@
{### Set a flag which allows us to put OR between events ###}
{% set or_flag = False %}
{% if data.lanname == 'edbspl' or data.tfunction == 'Inline EDB-SPL' %}
CREATE OR REPLACE TRIGGER {{ conn|qtIdent(data.name) }}
{% else %}
CREATE{% if data.is_constraint_trigger %} CONSTRAINT{% endif %} TRIGGER {{ conn|qtIdent(data.name) }}
{% endif %}
{{data.fires}} {% if data.evnt_insert %}INSERT{% set or_flag = True %}
{% endif %}{% if data.evnt_delete %}
{% if or_flag %} OR {% endif %}DELETE{% set or_flag = True %}
{% endif %}{% if data.evnt_truncate %}
{% if or_flag %} OR {% endif %}TRUNCATE{% set or_flag = True %}
{% endif %}{% if data.evnt_update %}
{% if or_flag %} OR {% endif %}UPDATE {% if data.columns|length > 0 %}OF {% for c in data.columns %}{% if loop.index != 1 %}, {% endif %}{{ conn|qtIdent(c) }}{% endfor %}{% endif %}
{% endif %}
ON {{ conn|qtIdent(data.schema, data.table) }}
{% if data.tgdeferrable %}
DEFERRABLE{% if data.tginitdeferred %} INITIALLY DEFERRED{% endif %}
{% endif %}
{% if data.tgoldtable or data.tgnewtable %}
REFERENCING{% if data.tgnewtable %} NEW TABLE AS {{ conn|qtIdent(data.tgnewtable) }}{% endif %}{% if data.tgoldtable %} OLD TABLE AS {{ conn|qtIdent(data.tgoldtable) }}{% endif %}
{% endif %}
FOR EACH{% if data.is_row_trigger %} ROW{% else %} STATEMENT{% endif %}
{% if data.whenclause %}
WHEN {{ data.whenclause }}{% endif %}
{% if data.prosrc is defined and
(data.lanname == 'edbspl' or data.tfunction == 'Inline EDB-SPL') %}{{ data.prosrc }}{% else %}EXECUTE PROCEDURE {{ data.tfunction }}{% if data.tgargs %}({{ data.tgargs }}){% else %}(){% endif%}{% endif%};
{% if data.description %}
COMMENT ON TRIGGER {{ conn|qtIdent(data.name) }} ON {{ conn|qtIdent(data.schema, data.table) }}
IS {{data.description|qtLiteral}};
{% endif %}

25
web/pgadmin/browser/server_groups/servers/databases/schemas/tables/templates/trigger/sql/10_plus/properties.sql Normal file
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@ -0,0 +1,25 @@
SELECT t.oid,t.tgname AS name, t.xmin, t.*, relname, CASE WHEN relkind = 'r' THEN TRUE ELSE FALSE END AS parentistable,
nspname, des.description, l.lanname, p.prosrc, p.proname AS tfunction,
COALESCE(substring(pg_get_triggerdef(t.oid), 'WHEN (.*) EXECUTE PROCEDURE'),
substring(pg_get_triggerdef(t.oid), 'WHEN (.*) \\$trigger')) AS whenclause,
-- We need to convert tgargs column bytea datatype to array datatype
(string_to_array(encode(tgargs, 'escape'), '\000')::text[])[1:tgnargs] AS custom_tgargs,
{% if datlastsysoid %}
(CASE WHEN t.oid <= {{ datlastsysoid}}::oid THEN true ElSE false END) AS is_sys_trigger,
{% endif %}
(CASE WHEN tgconstraint != 0::OID THEN true ElSE false END) AS is_constraint_trigger,
(CASE WHEN tgenabled = 'O' THEN true ElSE false END) AS is_enable_trigger,
tgoldtable,
tgnewtable
FROM pg_trigger t
JOIN pg_class cl ON cl.oid=tgrelid
JOIN pg_namespace na ON na.oid=relnamespace
LEFT OUTER JOIN pg_description des ON (des.objoid=t.oid AND des.classoid='pg_trigger'::regclass)
LEFT OUTER JOIN pg_proc p ON p.oid=t.tgfoid
LEFT OUTER JOIN pg_language l ON l.oid=p.prolang
WHERE NOT tgisinternal
AND tgrelid = {{tid}}::OID
{% if trid %}
AND t.oid = {{trid}}::OID
{% endif %}
ORDER BY tgname;

53
web/pgadmin/browser/server_groups/servers/databases/schemas/tables/triggers/static/js/trigger.js
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@ -469,6 +469,18 @@ define('pgadmin.node.trigger', [
}
return true;
}
},{
id: 'tgoldtable', label: gettext('Old table'),
type: 'text', group: gettext('Transition'),
cell: 'string', mode: ['create', 'edit', 'properties'],
deps: ['fires', 'is_constraint_trigger', 'evnt_insert', 'evnt_update', 'evnt_delete', 'columns'],
disabled: 'disableTransition'
},{
id: 'tgnewtable', label: gettext('New table'),
type: 'text', group: gettext('Transition'),
cell: 'string', mode: ['create', 'edit', 'properties'],
deps: ['fires', 'is_constraint_trigger', 'evnt_insert', 'evnt_update', 'evnt_delete', 'columns'],
disabled: 'disableTransition'
},{
id: 'prosrc', label: gettext('Code'), group: gettext('Code'),
type: 'text', mode: ['create', 'edit'], deps: ['tfunction'],
@ -574,6 +586,47 @@ define('pgadmin.node.trigger', [
}
}
return true;
},
// Disable/Enable Transition tables
disableTransition: function(m) {
var flag = true,
evnt = null,
name = this.name,
evnt_count = 0;
// Disable transition tables for view trigger and PG version < 100000
if(_.indexOf(Object.keys(m.node_info), 'table') == -1 ||
m.node_info.server.version < 100000) return true;
if (name == "tgoldtable") evnt = 'evnt_delete';
else if (name == "tgnewtable") evnt = 'evnt_insert';
if(m.get('evnt_insert')) evnt_count++;
if(m.get('evnt_update')) evnt_count++;
if(m.get('evnt_delete')) evnt_count++;
// Disable transition tables if
// - It is a constraint trigger
// - Fires other than AFTER
// - More than one events enabled
// - Update event with the column list
// Disable Old transition table if both UPDATE and DELETE events are disabled
// Disable New transition table if both UPDATE and INSERT events are disabled
if(!m.get('is_constraint_trigger') && m.get('fires') == 'AFTER' &&
(m.get('evnt_update') || m.get(evnt)) && evnt_count == 1) {
if (m.get('evnt_update') && (_.size(m.get('columns')) >= 1 && m.get('columns')[0] != "")) flag = true;
else flag = false;
}
flag && setTimeout(function() {
if(m.get(name)) {
m.set(name, null);
}
},10);
return flag;
}
}),
// Below function will enable right click menu for creating column