Commit 34f242f2 by Guillaume Royer

feat(storage): add sql query storage

parent b345214e
......@@ -5,4 +5,6 @@
#dolphin
.directory
node_modules/*
\ No newline at end of file
node_modules/*
package-lock.json
......@@ -182,7 +182,8 @@ module.exports = function (grunt) {
'src/jio.storage/indexeddbstorage.js',
'src/jio.storage/cryptstorage.js',
'src/jio.storage/websqlstorage.js',
'src/jio.storage/fbstorage.js'
'src/jio.storage/fbstorage.js',
'src/jio.storage/sqlstorage.js'
],
dest: 'dist/<%= pkg.name %>-<%= pkg.version %>.js'
// dest: 'jio.js'
......
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/*
* Copyright 2013, Nexedi SA
* Released under the LGPL license.
* http://www.gnu.org/licenses/lgpl.html
*/
/**
* JIO Sql Storage. Type = "sql".
* sql "database" storage.
*/
/*global Blob, jIO, RSVP, SQL, localStorage*/
/*jslint nomen: true*/
(function (jIO, RSVP, SQL, localStorage) {
"use strict";
var sqlStorageKey = 'jio_sql',
sqlTable = "jiosearch";
function resetDb(indexFields) {
var db = new SQL.Database(),
fields = ["id"].concat(indexFields);
db.run("CREATE TABLE " + sqlTable + " ( " + fields.join(", ") + ");");
return db;
}
function initDb(indexFields) {
var data = localStorage.getItem(sqlStorageKey);
if (data) {
return new SQL.Database(data.split(","));
}
return resetDb(indexFields);
}
function saveDb(db) {
var data = db["export"](); // jslint throws error
localStorage.setItem(sqlStorageKey, data);
}
function docToParams(id, doc) {
var data = {};
Object.keys(doc).forEach(function (key) {
data[":" + key] = doc[key];
});
data[":id"] = id.toString();
return data;
}
function dbValues(indexFields) {
return " VALUES (:id, " + indexFields.map(function (field) {
return ":" + field;
}).join(", ") + ")";
}
function dbSet(indexFields) {
return " SET " + indexFields.map(function (field) {
return field + " = :" + field;
}).join(", ");
}
function dbOrderBy(fields) {
return (fields || []).map(function (field) {
return field[0] + " " + (field[1] === "descending" ? "DESC" : "ASC");
}).join(", ");
}
function dbWhere(fields, operator) {
var where = "",
field,
i;
for (i = 0; i < fields.length; i = i + 1) {
field = fields[i];
where += field.key + " LIKE \"%" + field.value + "%\"";
if (i !== fields.length - 1) {
where += " " + (field.operator || operator) + " ";
}
}
return where;
}
function filterJSON(json, fields) {
if (!fields || !fields.length) {
return json;
}
var data = {};
fields.forEach(function (field) {
if (json.hasOwnProperty(field)) {
data[field] = json[field];
}
});
return data;
}
/**
* The jIO sql.js extension
*
* @class SqlStorage
* @constructor
*/
function SqlStorage(spec) {
this._sub_storage = jIO.createJIO(spec.sub_storage);
this.__index_fields = spec.index_fields;
this.__db = initDb(spec.index_fields || []);
}
SqlStorage.prototype.__resetDb = function (indexFields) {
this.__index_fields = indexFields;
this.__db = resetDb(indexFields);
};
SqlStorage.prototype.get = function () {
return this._sub_storage.get.apply(this._sub_storage, arguments);
};
SqlStorage.prototype.allAttachments = function () {
return this._sub_storage.allAttachments.apply(this._sub_storage, arguments);
};
SqlStorage.prototype.post = function (doc) {
var db = this.__db,
indexFields = this.__index_fields;
return this._sub_storage.post.apply(this._sub_storage, arguments)
.push(function (id) {
db.run(
"INSERT INTO " + sqlTable + dbValues(indexFields),
docToParams(id, doc)
);
saveDb(db);
});
};
SqlStorage.prototype.put = function (id, doc) {
var db = this.__db,
indexFields = this.__index_fields;
return this._sub_storage.put.apply(this._sub_storage, arguments)
.push(function () {
db.run(
"UPDATE " + sqlTable + dbSet(indexFields) + " WHERE id=:id",
docToParams(id, doc)
);
saveDb(db);
});
};
SqlStorage.prototype.remove = function (id) {
var db = this.__db;
return this._sub_storage.remove(id)
.push(function () {
db.run("DELETE FROM " + sqlTable + " WHERE id=:id", {
":id": id
});
saveDb(db);
});
};
SqlStorage.prototype.getAttachment = function () {
return this._sub_storage.getAttachment.apply(this._sub_storage, arguments);
};
SqlStorage.prototype.putAttachment = function () {
return this._sub_storage.putAttachment.apply(this._sub_storage, arguments);
};
SqlStorage.prototype.removeAttachment = function () {
return this._sub_storage.removeAttachment.apply(this._sub_storage,
arguments);
};
SqlStorage.prototype.repair = function () {
// rebuild db?
return this._sub_storage.repair.apply(this._sub_storage, arguments);
};
SqlStorage.prototype.hasCapacity = function (name) {
var this_storage_capacity_list = ["limit",
"sort",
"select",
"query"];
if (this_storage_capacity_list.indexOf(name) !== -1) {
return true;
}
if (name === "list") {
return this._sub_storage.hasCapacity(name);
}
return false;
};
SqlStorage.prototype.buildQuery = function (options) {
if (!options.query) {
return this._sub_storage.buildQuery(options);
}
var context = this,
db = this.__db,
parsed_query = jIO.QueryFactory.create(options.query);
return new RSVP.Queue()
.push(function () {
var query = "SELECT id FROM " + sqlTable,
where = dbWhere(
parsed_query.query_list || [parsed_query],
parsed_query.operator
),
orderBy = dbOrderBy(options.sort_on),
limit = options.limit;
if (where) {
query += " WHERE " + where;
}
if (orderBy) {
query += " ORDER BY " + orderBy;
}
if (limit) {
query += " LIMIT " + limit.join(", ");
}
return db.prepare(query);
})
.push(function (result) {
var ids = [];
while (result.step()) {
ids.push(result.get()[0]);
}
result.free();
return RSVP.all(ids.map(function (id) {
return context.get(id).push(function (doc) {
return {
id: id,
value: filterJSON(doc, options.select_list)
};
});
}));
});
};
jIO.addStorage('sql', SqlStorage);
}(jIO, RSVP, SQL, localStorage));
......@@ -4,6 +4,7 @@
<meta charset="utf-8" />
<title>JIO Qunit/Sinon Unit Tests</title>
<script src="../node_modules/rsvp/dist/rsvp-2.0.4.js"></script>
<script src="../lib/sql.js/sql.js"></script>
<script src="../dist/jio-latest.js"></script>
<link rel="stylesheet" href="../node_modules/grunt-contrib-qunit/test/libs/qunit.css" type="text/css" media="screen"/>
......@@ -56,6 +57,7 @@
<script src="jio.storage/websqlstorage.tests.js"></script>
<script src="jio.storage/fbstorage.tests.js"></script>
<script src="jio.storage/httpstorage.tests.js"></script>
<script src="jio.storage/sqlstorage.tests.js"></script>
<!--script src="../lib/jquery/jquery.min.js"></script>
<script src="../src/jio.storage/xwikistorage.js"></script>
<script src="jio.storage/xwikistorage.tests.js"></script-->
......
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