2023-06-29 06:55:59 +00:00
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/*\
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title: $:/plugins/tiddlywiki/sqlite3store/sql-functions.js
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type: application/javascript
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Functions to perform basic tiddler operations with a sqlite3 database
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This file is spliced into the HTML file to be executed before the boot kernel has been loaded.
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\*/
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(function() {
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$tw.SqlFunctions = function(options) {
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options = options || {};
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var self = this;
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2023-07-18 18:33:21 +00:00
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// Setting useCustomCollation to true allows the tests to pass (run `tiddlywiki editions/test/ --build index`)
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// - but it takes 6 times longer to boot the prerelease than with useCustomCollation set to false
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var useCustomCollation = false;
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var COLLATION_CLAUSE = useCustomCollation ? "COLLATE custom_collation" : "";
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// Create anonymous database
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2023-07-06 10:54:03 +00:00
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this.db = new $tw.sqlite3.oo1.DB("","c");
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2023-06-30 09:46:27 +00:00
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// Setup custom collation to precisely match existing sort orders
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// Create field with `title TEXT NOT NULL COLLATE custom_collation`
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// Use it like `... order by shadow collate custom_collation`
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2023-07-18 18:33:21 +00:00
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if(useCustomCollation) {
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function customCollation(ptr,lenA,a,lenB,b) {
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// There may be a problem here: lenA and lenB are the lengths of the two UTF8 strings in bytes,
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// and yet we're using them with JS slice() method which counts in characters
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var jsA = $tw.sqlite3.wasm.cstrToJs(a).slice(0,lenA),
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jsB = $tw.sqlite3.wasm.cstrToJs(b).slice(0,lenB);
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return jsA.localeCompare(jsB);
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}
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var SQLITE_UTF8 = 1; /* IMP: R-37514-35566 */
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var SQLITE_UTF16LE = 2; /* IMP: R-03371-37637 */
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var SQLITE_UTF16BE = 3; /* IMP: R-51971-34154 */
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var SQLITE_UTF16 = 4; /* Use native byte order */
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var SQLITE_ANY = 5; /* Deprecated */
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var SQLITE_UTF16_ALIGNED = 8; /* sqlite3_create_collation only */
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var collationResult = $tw.sqlite3.capi.sqlite3_create_collation_v2(this.db.pointer,"custom_collation",SQLITE_UTF8,this,customCollation,0);
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2023-07-07 07:20:57 +00:00
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}
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2023-06-29 06:55:59 +00:00
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/*
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Create tables and indexes
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*/
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self.db.exec({
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sql: `
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2023-10-21 11:00:51 +00:00
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DROP TABLE IF EXISTS plugins;
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CREATE TABLE plugins (
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plugintitle TEXT NOT NULL, -- Empty string shoud be the highest priority
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2023-10-21 11:00:51 +00:00
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priority INTEGER NOT NULL,
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PRIMARY KEY(plugintitle)
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);
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2023-07-18 18:33:21 +00:00
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DROP TABLE IF EXISTS tiddlers;
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CREATE TABLE tiddlers (
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title TEXT NOT NULL ${COLLATION_CLAUSE},
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2023-10-24 17:41:34 +00:00
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plugintitle TEXT NOT NULL, -- Empty string for tiddlers that are not part of a plugin
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2023-07-18 18:33:21 +00:00
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meta TEXT NOT NULL,
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text TEXT NOT NULL,
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PRIMARY KEY(title,plugintitle)
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2023-07-18 18:33:21 +00:00
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);
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CREATE INDEX tiddlers_title_index ON tiddlers(title);
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2023-10-21 11:00:51 +00:00
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DROP TABLE IF EXISTS titles;
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CREATE TABLE titles (
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title TEXT NOT NULL ${COLLATION_CLAUSE},
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2023-10-24 17:41:34 +00:00
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plugintitle TEXT NOT NULL, -- Empty string for tiddlers that are not part of a plugin
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2023-10-21 11:00:51 +00:00
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PRIMARY KEY(title)
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2023-07-18 18:33:21 +00:00
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);
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2023-10-25 10:29:38 +00:00
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DROP TABLE IF EXISTS tags;
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CREATE TABLE tags (
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tag_id INTEGER PRIMARY KEY,
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tag TEXT NOT NULL
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);
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DROP TABLE IF EXISTS tiddler_tags;
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CREATE TABLE tiddler_tags (
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title TEXT NOT NULL,
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plugintitle INTEGER NOT NULL,
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tag_id INTEGER NOT NULL,
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FOREIGN KEY (title, plugintitle) REFERENCES tiddlers (title, plugintitle) ON DELETE CASCADE ON UPDATE CASCADE,
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FOREIGN KEY (tag_id) REFERENCES tags (tag_id) ON DELETE CASCADE ON UPDATE CASCADE,
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PRIMARY KEY (title, plugintitle, tag_id)
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);
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2023-06-29 06:55:59 +00:00
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`
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});
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/*
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2023-10-21 11:00:51 +00:00
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Debugging
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*/
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var statementLogTiddlersTable = self.db.prepare("select title, plugintitle, meta, text from tiddlers order by title, plugintitle;"),
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2023-10-25 10:29:38 +00:00
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statementLogPluginsTable = self.db.prepare("select plugintitle, priority from plugins order by plugintitle;"),
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statementLogTitlesTable = self.db.prepare("select title, plugintitle from titles order by title;"),
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statementLogTagsTable = self.db.prepare("select tag_id, tag from tags order by tag_id;"),
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statementLogTiddlerTagsTable = self.db.prepare("select title, plugintitle, tag_id from tiddler_tags order by title, plugintitle;");
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2023-10-21 11:00:51 +00:00
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function sqlLogTable(statement) {
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let resultRows = [];
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while(statement.step()) {
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var row = statement.get({});
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resultRows.push(row);
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}
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statement.reset();
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return resultRows;
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}
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this.sqlLogTables = function() {
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console.log("tiddlers",sqlLogTable(statementLogTiddlersTable));
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console.log("plugins",sqlLogTable(statementLogPluginsTable));
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console.log("titles",sqlLogTable(statementLogTitlesTable));
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2023-10-25 10:29:38 +00:00
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console.log("tags",sqlLogTable(statementLogTagsTable));
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console.log("tiddlertags",sqlLogTable(statementLogTiddlerTagsTable));
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2023-10-21 11:00:51 +00:00
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};
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/*
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Set the plugin priorities
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*/
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this.sqlSetPluginPriorities = function(prioritisedPluginTitles) {
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2023-10-24 17:41:34 +00:00
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const plugintitles = prioritisedPluginTitles.concat([""]);
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2023-10-21 11:00:51 +00:00
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self.db.exec({
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sql: "DELETE FROM plugins"
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});
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let priority = 1;
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2023-10-24 17:41:34 +00:00
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for(const plugintitle of plugintitles) {
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2023-10-21 11:00:51 +00:00
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self.db.exec({
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sql: "insert or replace into plugins (plugintitle, priority) values ($plugintitle, $priority)",
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bind: {
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$plugintitle: plugintitle,
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$priority: priority++
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}
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});
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}
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};
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/*
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Save a tiddler
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2023-06-29 06:55:59 +00:00
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*/
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2023-07-18 18:33:21 +00:00
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var querySaveTiddlerTableTiddlers = self.db.prepare(`
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-- Insert the new tiddler into the tiddlers table
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2023-10-21 11:00:51 +00:00
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INSERT OR REPLACE INTO tiddlers (title, plugintitle, meta, text)
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VALUES ($title, $plugintitle, $meta, $text);
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2023-07-18 18:33:21 +00:00
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`);
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2023-10-21 11:00:51 +00:00
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var querySaveTiddlerTableTitles = self.db.prepare(`
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-- Insert the new title into the titles table
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INSERT OR REPLACE INTO titles (title, plugintitle)
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SELECT
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t.title,
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2023-10-24 17:41:34 +00:00
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(SELECT t2.plugintitle
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FROM tiddlers AS t2
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JOIN plugins AS p ON t2.plugintitle = p.plugintitle
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WHERE t2.title = t.title
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ORDER BY p.priority DESC
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LIMIT 1
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) AS plugintitle
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FROM tiddlers AS t
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WHERE t.title = $title;
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2023-07-18 18:33:21 +00:00
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`);
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2023-10-25 10:29:38 +00:00
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var querySaveTiddlerTableTags = self.db.prepare(`
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-- Parse and insert tags from the $tags JSON array
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WITH tag_values AS (
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SELECT json_each.value AS tag
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FROM json_each($tags)
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)
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INSERT INTO tags (tag)
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SELECT DISTINCT tag
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FROM tag_values
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WHERE tag NOT IN (
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SELECT tag
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FROM tags
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);
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`);
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var querySaveTiddlerTableTiddlerTags = self.db.prepare(`
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-- Associate the new tiddler with the tags in the tiddler_tags table
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WITH tag_values AS (
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SELECT json_each.value AS tag
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FROM json_each($tags)
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)
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INSERT OR IGNORE INTO tiddler_tags (title, plugintitle, tag_id)
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SELECT $title, $plugintitle, tags.tag_id
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FROM tag_values
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JOIN tags ON tag_values.tag = tags.tag;
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`);
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2023-10-21 11:00:51 +00:00
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this.sqlSaveTiddler = function(tiddlerFields,plugintitle) {
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2023-10-24 17:41:34 +00:00
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plugintitle = plugintitle || "";
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2023-10-25 10:29:38 +00:00
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// Normalise the tags by removing any double square brackets
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let tags = tiddlerFields.tags;
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if(typeof tags === "string") {
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tags = $tw.utils.parseStringArray(tags);
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}
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const normalisedTags = (tags || []).map(tag => {
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const match = /^[^\S\xA0]*\[\[(.*)\]\][^\S\xA0]*$/mg.exec(tag);
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if(match) {
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return match[1];
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} else {
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return tag;
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}
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});
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const jsonNormalisedTags = JSON.stringify(normalisedTags);
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2023-07-18 18:33:21 +00:00
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querySaveTiddlerTableTiddlers.bind({
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$title: tiddlerFields.title,
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$plugintitle: plugintitle,
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$meta: JSON.stringify(Object.assign({},tiddlerFields,{title: undefined, text: undefined})),
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$text: tiddlerFields.text || ""
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});
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2023-07-18 18:33:21 +00:00
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querySaveTiddlerTableTiddlers.step();
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querySaveTiddlerTableTiddlers.reset();
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2023-10-21 11:00:51 +00:00
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querySaveTiddlerTableTitles.bind({
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2023-07-18 18:33:21 +00:00
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$title: tiddlerFields.title,
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});
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2023-10-21 11:00:51 +00:00
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querySaveTiddlerTableTitles.step();
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querySaveTiddlerTableTitles.reset();
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2023-10-25 10:29:38 +00:00
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querySaveTiddlerTableTags.bind({
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$tags: jsonNormalisedTags
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});
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querySaveTiddlerTableTags.step();
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querySaveTiddlerTableTags.reset();
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querySaveTiddlerTableTiddlerTags.bind({
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$title: tiddlerFields.title,
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$plugintitle: plugintitle || "",
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$tags: jsonNormalisedTags
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});
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querySaveTiddlerTableTiddlerTags.step();
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querySaveTiddlerTableTiddlerTags.reset();
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2023-06-29 06:55:59 +00:00
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};
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2023-10-21 11:00:51 +00:00
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/*
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Delete a tiddler
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*/
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var statementDeleteTiddlerDeleteFromTiddlers = self.db.prepare(`
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DELETE FROM tiddlers
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WHERE title = $title AND plugintitle = $plugintitle;
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2023-10-21 11:00:51 +00:00
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`);
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var statementDeleteTiddlerFindShadow = self.db.prepare(`
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SELECT t.title, t.plugintitle
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FROM tiddlers AS t
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JOIN plugins AS p ON t.plugintitle = p.plugintitle
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WHERE t.title = $title
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ORDER BY p.priority DESC
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LIMIT 1;
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2023-10-21 11:00:51 +00:00
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`);
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2023-10-24 17:41:34 +00:00
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this.sqlDeleteTiddler = function(title,plugintitle) {
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plugintitle = plugintitle || "";
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2023-10-21 11:00:51 +00:00
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// Delete the tiddler from the tiddlers table
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statementDeleteTiddlerDeleteFromTiddlers.bind({
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2023-10-24 17:41:34 +00:00
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$title: title,
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$plugintitle: plugintitle
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});
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2023-10-21 11:00:51 +00:00
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statementDeleteTiddlerDeleteFromTiddlers.step();
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statementDeleteTiddlerDeleteFromTiddlers.reset();
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// Find any corresponding shadow tiddler
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statementDeleteTiddlerFindShadow.bind({
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$title: title
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});
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if(statementDeleteTiddlerFindShadow.step()) {
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var row = statementDeleteTiddlerFindShadow.get({});
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2023-10-24 17:41:34 +00:00
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statementDeleteTiddlerFindShadow.reset();
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2023-10-21 11:00:51 +00:00
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// Replace the tiddler with the shadow
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self.db.exec({
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sql: "insert or replace into titles (title, plugintitle) values ($title, $plugintitle)",
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bind: {
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$title: title,
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$plugintitle: row.plugintitle
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}
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});
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} else {
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2023-10-24 17:41:34 +00:00
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statementDeleteTiddlerFindShadow.reset();
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// There is no shadow tiddler, so just delete the tiddler
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2023-10-21 11:00:51 +00:00
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self.db.exec({
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sql: "delete from titles where title = $title",
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bind: {
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$title: title
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}
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});
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}
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2023-06-29 06:55:59 +00:00
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};
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2023-10-21 11:00:51 +00:00
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/*
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Remove all shadow tiddlers
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*/
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2023-06-29 06:55:59 +00:00
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this.sqlClearShadows = function() {
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self.db.exec({
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sql: "delete from tiddlers where plugintitle != '';"
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2023-10-21 11:00:51 +00:00
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});
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self.db.exec({
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2023-10-24 17:41:34 +00:00
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sql: "delete from titles where plugintitle != '';"
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2023-06-29 06:55:59 +00:00
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});
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};
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2023-10-21 11:00:51 +00:00
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/*
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Check whether a tiddler exists
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*/
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2023-10-24 17:41:34 +00:00
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var statementTiddlerExists = self.db.prepare(`select title from titles where title = $title and plugintitle = '';`)
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this.sqlTiddlerExists = function(title) {
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statementTiddlerExists.bind({
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$title: title
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});
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if(statementTiddlerExists.step()) {
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statementTiddlerExists.reset();
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return true;
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} else {
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statementTiddlerExists.reset();
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return false;
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}
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};
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2023-10-21 11:00:51 +00:00
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/*
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Get the value of a tiddler
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*/
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var statementGetTiddler = self.db.prepare(`
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select t.title, ti.meta, ti.text
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FROM titles AS t
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JOIN tiddlers AS ti
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ON t.title = ti.title AND t.plugintitle = ti.plugintitle
|
2023-10-21 11:00:51 +00:00
|
|
|
WHERE t.title = $title;
|
|
|
|
`);
|
2023-06-29 06:55:59 +00:00
|
|
|
this.sqlGetTiddler = function(title) {
|
|
|
|
statementGetTiddler.bind({
|
|
|
|
$title: title
|
|
|
|
});
|
|
|
|
if(statementGetTiddler.step()) {
|
|
|
|
var row = statementGetTiddler.get({});
|
|
|
|
statementGetTiddler.reset();
|
|
|
|
return Object.assign({},JSON.parse(row.meta),{title: row.title, text: row.text});
|
|
|
|
} else {
|
|
|
|
statementGetTiddler.reset();
|
|
|
|
return undefined;
|
|
|
|
}
|
|
|
|
};
|
2023-10-21 11:00:51 +00:00
|
|
|
/*
|
|
|
|
Get the plugin from which a tiddler came
|
|
|
|
*/
|
|
|
|
var statementGetShadowSource = self.db.prepare(`
|
2023-10-24 17:41:34 +00:00
|
|
|
SELECT t.title, t.plugintitle
|
|
|
|
FROM tiddlers AS t
|
|
|
|
LEFT JOIN plugins AS p ON t.plugintitle = p.plugintitle
|
|
|
|
WHERE t.title = $title AND t.plugintitle <> ''
|
|
|
|
ORDER BY p.priority DESC
|
|
|
|
LIMIT 1;
|
2023-10-21 11:00:51 +00:00
|
|
|
`);
|
2023-06-29 06:55:59 +00:00
|
|
|
this.sqlGetShadowSource = function(title) {
|
|
|
|
statementGetShadowSource.bind({
|
|
|
|
$title: title
|
|
|
|
});
|
|
|
|
if(statementGetShadowSource.step()) {
|
|
|
|
var row = statementGetShadowSource.get({});
|
|
|
|
statementGetShadowSource.reset();
|
2023-10-21 11:00:51 +00:00
|
|
|
return row.plugintitle;
|
2023-06-29 06:55:59 +00:00
|
|
|
} else {
|
|
|
|
statementGetShadowSource.reset();
|
2023-10-21 11:00:51 +00:00
|
|
|
return null;
|
2023-06-29 06:55:59 +00:00
|
|
|
}
|
|
|
|
};
|
2023-10-21 11:00:51 +00:00
|
|
|
/*
|
|
|
|
Get all titles
|
|
|
|
*/
|
|
|
|
var statementAllTitles = self.db.prepare(`select title from titles order by title ${COLLATION_CLAUSE}`);
|
2023-06-29 06:55:59 +00:00
|
|
|
this.sqlAllTitles = function() {
|
|
|
|
let resultRows = [];
|
|
|
|
while(statementAllTitles.step()) {
|
|
|
|
var row = statementAllTitles.get({});
|
|
|
|
resultRows.push(row.title);
|
|
|
|
}
|
|
|
|
statementAllTitles.reset();
|
|
|
|
return resultRows;
|
|
|
|
};
|
2023-10-21 11:00:51 +00:00
|
|
|
/*
|
|
|
|
All shadow titles
|
|
|
|
*/
|
|
|
|
var statementAllShadowTitles = self.db.prepare(`
|
|
|
|
SELECT title
|
|
|
|
FROM tiddlers
|
2023-10-24 17:41:34 +00:00
|
|
|
WHERE plugintitle != ''
|
2023-10-21 11:00:51 +00:00
|
|
|
ORDER BY title ${COLLATION_CLAUSE}
|
|
|
|
`);
|
2023-06-29 06:55:59 +00:00
|
|
|
this.sqlAllShadowTitles = function() {
|
|
|
|
let resultRows = [];
|
|
|
|
while(statementAllShadowTitles.step()) {
|
|
|
|
var row = statementAllShadowTitles.get({});
|
|
|
|
resultRows.push(row.title);
|
|
|
|
}
|
|
|
|
statementAllShadowTitles.reset();
|
|
|
|
return resultRows;
|
|
|
|
};
|
2023-10-21 11:00:51 +00:00
|
|
|
/*
|
|
|
|
Iterate through each tiddler
|
|
|
|
*/
|
|
|
|
var statementEachTiddler = self.db.prepare(`
|
|
|
|
SELECT t.title, ti.meta, ti.text
|
|
|
|
FROM titles AS t
|
2023-10-24 17:41:34 +00:00
|
|
|
LEFT JOIN tiddlers AS ti ON t.title = ti.title AND t.plugintitle = ti.plugintitle
|
|
|
|
WHERE t.plugintitle == ''
|
2023-10-21 11:00:51 +00:00
|
|
|
ORDER BY t.title ${COLLATION_CLAUSE}
|
|
|
|
`);
|
2023-06-29 06:55:59 +00:00
|
|
|
this.sqlEachTiddler = function(callback) {
|
|
|
|
while(statementEachTiddler.step()) {
|
|
|
|
var row = statementEachTiddler.get({}),
|
|
|
|
tiddlerFields = Object.assign({},JSON.parse(row.meta),{title: row.title, text: row.text});
|
|
|
|
callback(tiddlerFields,row.title);
|
|
|
|
}
|
|
|
|
statementEachTiddler.reset();
|
|
|
|
};
|
|
|
|
/*
|
2023-10-21 11:00:51 +00:00
|
|
|
Iterate through each tiddler that is a shadow (including overridden shadows)
|
2023-06-29 06:55:59 +00:00
|
|
|
*/
|
|
|
|
var statementEachShadowTiddler = self.db.prepare(`
|
2023-10-21 11:00:51 +00:00
|
|
|
SELECT DISTINCT t.title, td.meta, td.text
|
|
|
|
FROM titles AS t
|
|
|
|
JOIN tiddlers AS td ON t.title = td.title
|
2023-10-24 17:41:34 +00:00
|
|
|
WHERE td.plugintitle != ''
|
2023-10-21 11:00:51 +00:00
|
|
|
ORDER BY t.title ${COLLATION_CLAUSE};
|
2023-06-29 06:55:59 +00:00
|
|
|
`);
|
|
|
|
this.sqlEachShadowTiddler = function(callback) {
|
|
|
|
while(statementEachShadowTiddler.step()) {
|
|
|
|
var row = statementEachShadowTiddler.get({});
|
|
|
|
var tiddlerFields = Object.assign({},JSON.parse(row.meta),{title: row.title, text: row.text});
|
|
|
|
callback(tiddlerFields,row.title);
|
|
|
|
}
|
|
|
|
statementEachShadowTiddler.reset();
|
|
|
|
};
|
|
|
|
/*
|
2023-10-21 11:00:51 +00:00
|
|
|
Iterate all tiddlers, and then the shadows
|
2023-06-29 06:55:59 +00:00
|
|
|
*/
|
|
|
|
this.sqlEachTiddlerPlusShadows = function(callback) {
|
2023-10-21 11:00:51 +00:00
|
|
|
const titles = Object.create(null);
|
|
|
|
self.sqlEachTiddler(function(fields,title) {
|
|
|
|
titles[title] = true;
|
|
|
|
callback(fields,title);
|
|
|
|
});
|
|
|
|
self.sqlEachShadowTiddler(function(fields,title) {
|
|
|
|
if(!titles[title]) {
|
|
|
|
callback(fields,title);
|
|
|
|
}
|
|
|
|
});
|
2023-06-29 06:55:59 +00:00
|
|
|
};
|
|
|
|
/*
|
2023-10-21 11:00:51 +00:00
|
|
|
Iterate all shadows, and then the tiddlers
|
2023-06-29 06:55:59 +00:00
|
|
|
*/
|
|
|
|
this.sqlEachShadowPlusTiddlers = function(callback) {
|
2023-10-21 11:00:51 +00:00
|
|
|
const titles = Object.create(null);
|
|
|
|
self.sqlEachShadowTiddler(function(fields,title) {
|
|
|
|
titles[title] = true;
|
|
|
|
callback(fields,title);
|
2023-07-18 18:33:21 +00:00
|
|
|
});
|
2023-10-21 11:00:51 +00:00
|
|
|
self.sqlEachTiddler(function(fields,title) {
|
|
|
|
if(!titles[title]) {
|
|
|
|
callback(fields,title);
|
2023-07-21 12:21:04 +00:00
|
|
|
}
|
2023-10-21 11:00:51 +00:00
|
|
|
});
|
2023-07-21 12:21:04 +00:00
|
|
|
};
|
|
|
|
/*
|
2023-10-21 11:00:51 +00:00
|
|
|
Return all tiddlers with a given tag
|
2023-07-18 18:33:21 +00:00
|
|
|
*/
|
2023-10-25 10:29:38 +00:00
|
|
|
var statementGetTiddlersWithTag = self.db.prepare(`
|
|
|
|
SELECT titles.title
|
|
|
|
FROM titles
|
|
|
|
JOIN tiddlers ON titles.title = tiddlers.title AND titles.plugintitle = tiddlers.plugintitle
|
|
|
|
JOIN plugins ON titles.plugintitle = plugins.plugintitle
|
|
|
|
JOIN tiddler_tags ON tiddlers.title = tiddler_tags.title AND tiddlers.plugintitle = tiddler_tags.plugintitle
|
|
|
|
JOIN tags ON tiddler_tags.tag_id = tags.tag_id
|
|
|
|
WHERE tags.tag = $tag
|
|
|
|
ORDER BY CASE
|
|
|
|
WHEN titles.plugintitle <> '' THEN 1
|
|
|
|
ELSE 2
|
|
|
|
END, titles.title ${COLLATION_CLAUSE} ASC;
|
|
|
|
`);
|
|
|
|
this.sqlGetTiddlersWithTag = function(tag,method) {
|
|
|
|
statementGetTiddlersWithTag.bind({
|
|
|
|
$tag: tag
|
|
|
|
});
|
|
|
|
var resultRows = [];
|
|
|
|
while(statementGetTiddlersWithTag.step()) {
|
|
|
|
var row = statementGetTiddlersWithTag.get({});
|
|
|
|
resultRows.push(row.title);
|
|
|
|
}
|
|
|
|
statementGetTiddlersWithTag.reset();
|
|
|
|
return resultRows;
|
|
|
|
};
|
2023-06-29 06:55:59 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
})();
|
2023-07-18 18:33:21 +00:00
|
|
|
//# sourceURL=$:/plugins/tiddlywiki/sqlite3store/sql-functions.js
|