101 lines
3.2 KiB
JavaScript
101 lines
3.2 KiB
JavaScript
var self = require("sdk/self");
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var buttons = require('sdk/ui/button/action');
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var tabs = require('sdk/tabs');
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var datomish = require("datomish.js");
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var schema = {
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"name": "pages",
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"attributes": [
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{"name": "page/url",
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"type": "string",
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"cardinality": "one",
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"unique": "identity",
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"doc": "A page's URL."},
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{"name": "page/title",
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"type": "string",
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"cardinality": "one",
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"fulltext": true,
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"doc": "A page's title."},
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{"name": "page/content",
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"type": "string",
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"cardinality": "one", // Simple for now.
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"fulltext": true,
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"doc": "A snapshot of the page's content. Should be plain text."},
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]
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};
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async function initDB(path) {
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let db = await datomish.open(path);
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await db.ensureSchema(schema);
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return db;
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}
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async function findURLs(db) {
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let query = `[:find ?page ?url ?title :in $ :where [?page :page/url ?url][(get-else $ ?page :page/title "") ?title]]`;
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let options = new Object();
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options["limit"] = 10;
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return datomish.q(db.db(), query, options);
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}
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async function findPagesMatching(db, string) {
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let query =
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`[:find ?url ?title
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:in $ ?str
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:where
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[(fulltext $ :any ?str) [[?page]]]
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[?page :page/url ?url]
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[(get-else $ ?page :page/title "") ?title]]`;
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return datomish.q(db.db(), query, {"limit": 10, "inputs": {"str": string}});
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}
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async function savePage(db, url, title, content) {
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let txResult = await db.transact([{"db/id": 55,
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"page/title": title,
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"page/url": url
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// "page/starred": true
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}]);
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return txResult;
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}
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async function handleClick(state) {
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let db = await datomish.open("/tmp/testing.db");
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await db.ensureSchema(schema);
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let txResult = await savePage(db, tabs.activeTab.url, tabs.activeTab.title, "Content goes here");
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console.log("Transaction returned " + JSON.stringify(txResult));
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console.log("Transaction instant: " + txResult.txInstant);
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let results = await findURLs(db); //datomish.q(db.db(), "[:find ?url :in $ :where [?e :page/url ?url]]");
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results = results.map(r => r[1]);
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console.log("Query results: " + JSON.stringify(results));
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let pages = await findPagesMatching(db, "goes");
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console.log("Pages: " + JSON.stringify(pages));
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await db.close();
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}
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/*
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async function handleClick(state) {
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console.log("Handling click: " + state);
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let tab = tabs.activeTab;
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console.log("Active tab: " + tab);
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console.log("Active tab: " + tab.url);
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console.log("Active tab: " + tab.title);
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let db = await initDB("/tmp/datomish.db");
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console.log("Opened DB: " + db);
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await savePage(db, tab.url, tab.title, "Content goes here.");
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console.log("Saved page.");
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let urls = await findURLs(db);
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console.log("URLs: " + JSON.stringify(urls));
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let results = await findPagesMatching(db, "goes");
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console.log("Pages: " + JSON.stringify(results));
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await db.close();
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}
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*/
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var button = buttons.ActionButton({
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id: "datomish-save",
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label: "Save Page",
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icon: "./datomish-48.png",
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onClick: handleClick
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});
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