From d22ba0b685f33249dfdf63808484de636b6c4de4 Mon Sep 17 00:00:00 2001 From: Egil Moeller Date: Thu, 25 Mar 2010 22:38:22 +0100 Subject: Got twitter style tags to work --- .../twitterStyleTags/controllers/tagBrowser.js | 184 +++++++++++++++++++++ etherpad/src/plugins/twitterStyleTags/hooks.js | 2 +- .../twitterStyleTags/templates/tagBrowser.ejs | 118 ++++++++++++- 3 files changed, 301 insertions(+), 3 deletions(-) diff --git a/etherpad/src/plugins/twitterStyleTags/controllers/tagBrowser.js b/etherpad/src/plugins/twitterStyleTags/controllers/tagBrowser.js index bf7c5b7..f5e63f7 100644 --- a/etherpad/src/plugins/twitterStyleTags/controllers/tagBrowser.js +++ b/etherpad/src/plugins/twitterStyleTags/controllers/tagBrowser.js @@ -29,8 +29,184 @@ import("sqlbase.sqlbase"); import("sqlbase.sqlcommon"); import("sqlbase.sqlobj"); +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; +} + +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 ') : ''; + + 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)}; +} + +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}; +} + +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 ' + + '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(); + var antiTags = new Array(); + + if (request.params.query != undefined && request.params.query != '') { + var query = request.params.query.split(','); + for (i = 0; i < query.length; i++) + if (query[i][0] == '!') + antiTags.push(query[i].substring(1)); + else + tags.push(query[i]); + } + + var querySql = getQueryToSql(tags.concat(['public']), antiTags); + //log.info(querySql.sql); + + var queryNewTagsSql = newTagsSql(querySql); + var newTags = sqlobj.executeRaw(queryNewTagsSql.sql, queryNewTagsSql.params); + + var matchingPads; + if (tags.length > 0 || antiTags.length > 0) { + var sql = "select p.PAD_ID as ID, p.TAGS from PAD_TAG_CACHE as p, " + querySql.sql + " as q where p.PAD_ID = q.ID limit 10" + matchingPads = sqlobj.executeRaw(sql, querySql.params); + } else { + matchingPads = []; + } + + for (i = 0; i < matchingPads.length; i++) { + matchingPads[i].TAGS = matchingPads[i].TAGS.split('#'); + } + var isPro = pro_utils.isProDomainRequest(); var userId = padusers.getUserId(); @@ -49,6 +225,14 @@ function onRequest() { renderHtml("tagBrowser.ejs", { + config: appjet.config, + tagsToQuery: tagsToQuery, + padIdToReadonly: server_utils.padIdToReadonly, + tags: tags, + antiTags: antiTags, + newTags: newTags, + matchingPads: matchingPads, + bodyClass: 'nonpropad', isPro: isPro, isProAccountHolder: isProUser, account: getSessionProAccount(), // may be falsy diff --git a/etherpad/src/plugins/twitterStyleTags/hooks.js b/etherpad/src/plugins/twitterStyleTags/hooks.js index 86875fc..a5513f0 100644 --- a/etherpad/src/plugins/twitterStyleTags/hooks.js +++ b/etherpad/src/plugins/twitterStyleTags/hooks.js @@ -4,7 +4,7 @@ import("plugins.twitterStyleTags.controllers.tagBrowser"); import("sqlbase.sqlobj"); function handlePath() { - return [[PrefixMatcher('/ep/tags/'), forward(tagBrowser)]]; + return [[PrefixMatcher('/ep/tag/'), forward(tagBrowser)]]; } function padModelWriteToDB(args) { diff --git a/etherpad/src/plugins/twitterStyleTags/templates/tagBrowser.ejs b/etherpad/src/plugins/twitterStyleTags/templates/tagBrowser.ejs index aed5d9b..ba00aa2 100644 --- a/etherpad/src/plugins/twitterStyleTags/templates/tagBrowser.ejs +++ b/etherpad/src/plugins/twitterStyleTags/templates/tagBrowser.ejs @@ -12,7 +12,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ %> <% - helpers.setHtmlTitle("Test plugin"); + helpers.setHtmlTitle("Browse tags"); helpers.setBodyId("padbody"); helpers.addBodyClass("limwidth nonpropad nonprouser"); helpers.includeCss("pad2_ejs.css"); @@ -21,8 +21,122 @@ limitations under the License. */ %> helpers.includeCometJs(); helpers.includeJs("json2.js"); helpers.addToHead('\n\n'); + + function inArray(item, arr) { + for (var i = 0; i < arr.length; i++) + if (arr[i] == item) + return true; + return false; + } %>
- Welcome to the tag browser plugin +
+
+
+
+ + <% if (isProAccountHolder) { %> +
<%= toHTML(account.email) %>(sign out)
+ <% } else if (isPro) { %> + + <% } %> +
+
+
+
+
Browse tags
+ + + + + + +
+
+
+ +
+ + +
+ +
+
+ +
+
+
+
+ +
+   +   +   +   +   +   +   +   +   +   +   +
+
+
+
+

Current query

+ <% if (tags.length == 0 && antiTags.length == 0) { %> + < No current query; please select some tags below to search for pads > + <% } else { %> + <% for (i = 0; i < tags.length; i++) { %> + <%= tags[i] %> + <% } %> + <% for (i = 0; i < antiTags.length; i++) { %> + !<%= antiTags[i] %> + <% } %> + <% } %> +

Refine your query

+

Search for pads that have a tag

+ <% for (i = 0; i < newTags.length; i++) { %> + <%= newTags[i].tagname %> + <% } %> + +

Search for pads that doesn't have a tag

+ <% for (i = 0; i < newTags.length; i++) { %> + <%= newTags[i].tagname %> + <% } %> + +

Matching pads

+
+ <% for (i = 0; i < matchingPads.length; i++) { %> + <% + var matchingPadId = matchingPads[i].ID; + var matchingPadUrl = matchingPadId; + if (!inArray('writable', matchingPads[i].TAGS)) { + matchingPadId = padIdToReadonly(matchingPads[i].ID); + matchingPadUrl = 'ep/pad/view/' + matchingPadId + '/latest'; + } + %> +
<%= matchingPadId %>
+
+ <% for (j = 0; j < matchingPads[i].TAGS.length; j++) { %> + <%= matchingPads[i].TAGS[j] %> + <% } %> +
+ <% } %> +
+
+
+
+ +
+
+
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+
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