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Code Issues Releases Wiki Activity

Refactor indexer implementation

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Previously, we were using the existing addIndexer method to piggyback adding our own internal indexers.
This commit is contained in:
Jeremy Ruston 2023-10-25 17:49:13 +01:00
parent 12c6cb35a0
commit dc94ed8be8
1 changed files with 85 additions and 78 deletions
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163
plugins/tiddlywiki/sqlite3store/sql-wiki-store.js
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@ -23,7 +23,30 @@ $tw.Wiki = function(options) {
pluginInfo = Object.create(null), // Hashmap of parsed plugin content
getShadowTiddlerTitles = function() {
return self.sqlFunctions.sqlAllShadowTitles();
},
enableIndexers = options.enableIndexers || null,
indexers = [],
indexersByName = Object.create(null);
this.addIndexer = function(indexer,name) {
// We stub out this method because this store doesn't support external indexers
};
this.addInternalIndexer = function(indexer,name) {
// Bail if this indexer is not enabled
if(enableIndexers && enableIndexers.indexOf(name) === -1) {
return;
}
console.log("Added indexer",name)
indexers.push(indexer);
indexersByName[name] = indexer;
indexer.init();
};
this.getIndexer = function(name) {
return indexersByName[name] || null;
};
// $tw.utils replacements
var eachObj = function(object,callback) {
var next,f,length;
@ -82,73 +105,6 @@ $tw.Wiki = function(options) {
self.sqlFunctions.sqlLogTables();
}
var tagIndexer;
this.addIndexer = function(indexer,name) {
switch(indexer.constructor.name) {
case "TagIndexer":
tagIndexer = new TagIndexer(this);
break;
}
};
function TagSubIndexer(indexer,iteratorMethod) {
this.indexer = indexer;
this.iteratorMethod = iteratorMethod;
this.cache = Object.create(null); // Hashmap by title containing arrays of titles
}
TagSubIndexer.prototype.addIndexMethod = function() {
var self = this;
this.indexer.wiki[this.iteratorMethod].byTag = function(tag) {
return self.lookup(tag).slice(0);
};
};
TagSubIndexer.prototype.update = function(updateDescriptor) {
this.cache = Object.create(null);
};
TagSubIndexer.prototype.lookup = function(tag) {
var cachedResult = this.cache[tag];
if(cachedResult) {
return cachedResult;
}
var listing = self.sqlFunctions.sqlGetTiddlersWithTag(tag,this.iteratorMethod);
if(this.indexer.wiki.sortByList) {
listing = this.indexer.wiki.sortByList(listing,tag);
}
this.cache[tag] = listing;
return listing;
};
function TagIndexer(wiki) {
this.wiki = wiki;
this.subIndexers = [
new TagSubIndexer(this,"each"),
new TagSubIndexer(this,"eachShadow"),
new TagSubIndexer(this,"eachTiddlerPlusShadows"),
new TagSubIndexer(this,"eachShadowPlusTiddlers")
];
$tw.utils.each(this.subIndexers,function(subIndexer) {
subIndexer.addIndexMethod();
});
}
TagIndexer.prototype.update = function(updateDescriptor) {
$tw.utils.each(this.subIndexers,function(subIndexer) {
subIndexer.update(updateDescriptor);
});
};
this.getIndexer = function(name) {
switch(name) {
case "TagIndexer":
return tagIndexer;
}
return null;
};
// Add a tiddler to the store
this.addTiddler = function(tiddler) {
if(!(tiddler instanceof $tw.Tiddler)) {
@ -163,9 +119,9 @@ $tw.Wiki = function(options) {
// Update caches
this.clearCache(title);
this.clearGlobalCache();
if(tagIndexer) {
tagIndexer.update();
}
$tw.utils.each(indexers,function(indexer) {
indexer.update();
});
// Queue a change event
this.enqueueTiddlerEvent(title);
}
@ -182,9 +138,9 @@ $tw.Wiki = function(options) {
// Update caches
this.clearCache(title);
this.clearGlobalCache();
if(tagIndexer) {
tagIndexer.update();
}
$tw.utils.each(indexers,function(indexer) {
indexer.update();
});
// Queue a change event
this.enqueueTiddlerEvent(title,true);
}
@ -368,9 +324,9 @@ $tw.Wiki = function(options) {
});
this.clearCache(null);
this.clearGlobalCache();
if(tagIndexer) {
tagIndexer.update();
}
$tw.utils.each(indexers,function(indexer) {
indexer.update();
});
};
this.optimiseFilter = function(filterString) {
@ -382,9 +338,60 @@ $tw.Wiki = function(options) {
return undefined;
};
if(this.addIndexersToWiki) {
this.addIndexersToWiki();
function TagSubIndexer(indexer,iteratorMethod) {
this.indexer = indexer;
this.iteratorMethod = iteratorMethod;
this.cache = Object.create(null); // Hashmap by title containing arrays of titles
}
TagSubIndexer.prototype.addIndexMethod = function() {
var self = this;
this.indexer.wiki[this.iteratorMethod].byTag = function(tag) {
return self.lookup(tag).slice(0);
};
};
TagSubIndexer.prototype.update = function() {
this.cache = Object.create(null);
};
TagSubIndexer.prototype.lookup = function(tag) {
var cachedResult = this.cache[tag];
if(cachedResult) {
return cachedResult;
}
var listing = self.sqlFunctions.sqlGetTiddlersWithTag(tag,this.iteratorMethod);
if(this.indexer.wiki.sortByList) {
listing = this.indexer.wiki.sortByList(listing,tag);
}
this.cache[tag] = listing;
return listing;
};
function TagIndexer(wiki) {
this.wiki = wiki;
this.subIndexers = [
new TagSubIndexer(this,"each"),
new TagSubIndexer(this,"eachShadow"),
new TagSubIndexer(this,"eachTiddlerPlusShadows"),
new TagSubIndexer(this,"eachShadowPlusTiddlers")
];
$tw.utils.each(this.subIndexers,function(subIndexer) {
subIndexer.addIndexMethod();
});
}
TagIndexer.prototype.init = function() {
};
TagIndexer.prototype.update = function() {
$tw.utils.each(this.subIndexers,function(subIndexer) {
subIndexer.update();
});
};
this.addInternalIndexer(new TagIndexer(this),"TagIndexer");
};
})();