From 1e3c76c56eccd9010f99c8daddd1a8ab31cb83db Mon Sep 17 00:00:00 2001 From: Egil Moeller Date: Mon, 12 Apr 2010 19:32:00 +0200 Subject: Separated the twitterStyleTags model stuff out in a separate file --- .../twitterStyleTags/controllers/tagBrowser.js | 169 +-------------------- 1 file changed, 5 insertions(+), 164 deletions(-) (limited to 'etherpad/src/plugins/twitterStyleTags/controllers') diff --git a/etherpad/src/plugins/twitterStyleTags/controllers/tagBrowser.js b/etherpad/src/plugins/twitterStyleTags/controllers/tagBrowser.js index 7071306..838fb24 100644 --- a/etherpad/src/plugins/twitterStyleTags/controllers/tagBrowser.js +++ b/etherpad/src/plugins/twitterStyleTags/controllers/tagBrowser.js @@ -15,6 +15,8 @@ * limitations under the License. */ +import("plugins.twitterStyleTags.models.tagQuery"); + import("faststatic"); import("dispatch.{Dispatcher,PrefixMatcher,forward}"); @@ -31,167 +33,6 @@ import("sqlbase.sqlcommon"); import("sqlbase.sqlobj"); import("etherpad.pad.padutils"); -function tagsToQuery(tags, antiTags) { - var prefixed = []; - for (i = 0; i < antiTags.length; i++) - prefixed[i] = '!' + antiTags[i]; - return tags.concat(prefixed).join(','); -} - -function stringFormat(text, obj) { - var name; - for (name in obj) { - //iterate through the params and replace their placeholders from the original text - text = text.replace(new RegExp('%\\(' + name + '\\)s', 'gi' ), obj[name]); - } - return text; -} - -/* All these sql query functions both takes a querySql object as - * parameter and returns one. This object has two members - sql and - * params. Sql is a string of an sql table name or a subqyery in - * parens. The table pr subquery should have an ID column containing a - * PAD_ID. - */ - -/* Filters pads by tags and anti-tags */ -function getQueryToSql(tags, antiTags, querySql) { - var queryTable; - var queryParams; - - if (querySql == null) { - queryTable = 'PAD_META'; - queryParams = []; - } else { - queryTable = querySql.sql; - queryParams = querySql.params; - } - - var exceptArray = []; - var joinArray = []; - var whereArray = []; - var exceptParamArray = []; - var joinParamArray = []; - - var info = new Object(); - info.queryTable = queryTable; - info.n = 0; - var i; - - for (i = 0; i < antiTags.length; i++) { - tag = antiTags[i]; - exceptArray.push( - stringFormat( - 'left join (PAD_TAG as pt%(n)s ' + - ' join TAG AS t%(n)s on ' + - ' t%(n)s.NAME = ? ' + - ' and t%(n)s.ID = pt%(n)s.TAG_ID) on ' + - ' pt%(n)s.PAD_ID = p.ID ', - info)); - whereArray.push(stringFormat('pt%(n)s.TAG_ID is null', info)); - exceptParamArray.push(tag); - info.n += 1; - } - for (i = 0; i < tags.length; i++) { - tag = tags[i]; - joinArray.push( - stringFormat( - 'join PAD_TAG as pt%(n)s on ' + - ' pt%(n)s.PAD_ID = p.ID ' + - 'join TAG as t%(n)s on ' + - ' t%(n)s.ID = pt%(n)s.TAG_ID ' + - ' and t%(n)s.NAME = ? ', - info)); - joinParamArray.push(tag); - info.n += 1; - } - - info["joins"] = joinArray.join(' '); - info["excepts"] = exceptArray.join(' '); - info["wheres"] = whereArray.length > 0 ? ' where ' + whereArray.join(' and ') : ''; - - /* Create a subselect from all the joins */ - return { - sql: stringFormat( - '(select distinct ' + - ' p.ID ' + - ' from ' + - ' %(queryTable)s as p ' + - ' %(joins)s ' + - ' %(excepts)s ' + - ' %(wheres)s ' + - ') ', - info), - params: queryParams.concat(joinParamArray).concat(exceptParamArray)}; -} - -/* Returns the sql to count the number of results from some other - * query. */ -function nrSql(querySql) { - var queryTable; - var queryParams; - - if (querySql == null) { - queryTable = 'PAD_META'; - queryParams = []; - } else { - queryTable = querySql.sql; - queryParams = querySql.params; - } - - var info = []; - info['query_sql'] = queryTable - return { - sql: stringFormat('(select count(*) as total from %(query_sql)s as q)', info), - params: queryParams}; -} - -/* Returns the sql to select the 10 best new tags to tack on to a - * query, that is, the tags that are closest to halving the result-set - * if tacked on. */ -function newTagsSql(querySql) { - var queryTable; - var queryParams; - - if (querySql == null) { - queryTable = 'PAD_META'; - queryParams = []; - } else { - queryTable = querySql.sql; - queryParams = querySql.params; - } - - var info = []; - info["query_post_table"] = queryTable; - var queryNrSql = nrSql(querySql); - info["query_nr_sql"] = queryNrSql.sql; - queryNrParams = queryNrSql.params; - - return { - sql: stringFormat('' + - 'select ' + - ' t.NAME tagname, ' + - ' count(tp.PAD_ID) as matches, ' + - ' tn.total - count(tp.PAD_ID) as antimatches, ' + - ' abs(count(tp.PAD_ID) - (tn.total / 2)) as weight ' + - 'from ' + - ' TAG as t, ' + - ' PAD_TAG as tp, ' + - ' %(query_nr_sql)s as tn ' + - 'where ' + - ' tp.TAG_ID = t.ID ' + - ' and tp.PAD_ID in %(query_post_table)s ' + - ' and tp.PAD_ID NOT LIKE \'%$%\'' + - 'group by t.NAME, tn.total ' + - 'having ' + - ' count(tp.PAD_ID) > 0 and count(tp.PAD_ID) < tn.total ' + - 'order by ' + - ' abs(count(tp.PAD_ID) - (tn.total / 2)) asc ' + - 'limit 10 ' + - '', info), - params: queryNrParams.concat(queryParams)}; -} - function onRequest() { var tags = new Array(); @@ -207,10 +48,10 @@ function onRequest() { } /* Create the pad filter sql */ - var querySql = getQueryToSql(tags.concat(['public']), antiTags); + var querySql = tagQuery.getQueryToSql(tags.concat(['public']), antiTags); /* Use the pad filter sql to figure out which tags to show in the tag browser this time. */ - var queryNewTagsSql = newTagsSql(querySql); + var queryNewTagsSql = tagQuery.newTagsSql(querySql); var newTags = sqlobj.executeRaw(queryNewTagsSql.sql, queryNewTagsSql.params); /* Select the 10 last changed matching pads and some extra information on them. Except the Pro Pads*/ @@ -260,7 +101,7 @@ function onRequest() { var info = { prefs: prefs, config: appjet.config, - tagsToQuery: tagsToQuery, + tagQuery: tagQuery, padIdToReadonly: server_utils.padIdToReadonly, tags: tags, antiTags: antiTags, -- cgit v1.2.3-1-g7c22