manually merge @tigerbot's updates (operator support and a few other things)
This commit is contained in:
parent
c59c0f5e8f
commit
cfd516e24f
367
lib/dbwrap.js
367
lib/dbwrap.js
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@ -1,5 +1,47 @@
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'use strict';
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function lowerFirst(str) {
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return str.charAt(0).toLowerCase() + str.substr(1);
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}
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function snakeCase(str) {
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return lowerFirst(str).replace(/([A-Z])/g, function (match) {
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return "_" + match.toLowerCase();
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});
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}
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function camelCase(str) {
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return str.replace(/_([a-z])/g, function (match) {
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return match[1].toUpperCase();
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});
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}
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function upperCamelCase(str) {
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var camel = camelCase(str);
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return camel.charAt(0).toUpperCase() + camel.substr(1);
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}
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var searchConditions = {
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'=': true,
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'==': true,
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'!=': true,
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'<>': true,
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'<': true,
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'<=': true,
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'!<': true,
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'>': true,
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'>=': true,
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'!>': true,
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'IS': true,
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'IS NOT': true,
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'IN': true,
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'NOT IN': true,
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'LIKE': true,
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'NOT LIKE': true,
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'GLOB': true,
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'NOT GLOB': true,
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'BETWEEN': true,
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'NOT BETWEEN': true,
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};
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function wrap(db, dir, dbsMap) {
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// TODO if I put a failure right here,
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// why doesn't the unhandled promise rejection fire?
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@ -12,34 +54,6 @@ function wrap(db, dir, dbsMap) {
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dbsMap = {};
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}
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function lowerFirst(str) {
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return str.charAt(0).toLowerCase() + str.slice(1);
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}
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function snakeCase(str) {
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return lowerFirst(str).replace(
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/([A-Z])/g
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, function ($1) {
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return "_" + $1.toLowerCase();
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}
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);
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}
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function camelCase(str) {
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str = str.replace(
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/_([a-z])/g
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, function (g) {
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return g[1].toUpperCase();
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}
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);
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return str;
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}
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function upperCamelCase(str) {
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// TODO handle UTF-8 properly (use codePointAt, don't use slice)
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return str.charAt(0).toUpperCase() + camelCase(str).slice(1);
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}
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// PRAGMA schema.table_info(table-name);
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//
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function sqlite3GetColumns(tablename, columns, cb) {
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@ -152,14 +166,6 @@ function wrap(db, dir, dbsMap) {
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DB._indicesMap[col.name] = col;
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});
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function simpleParse(row) {
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if (!row) {
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return null;
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}
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return simpleMap([row])[0] || null;
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}
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function simpleMap(rows) {
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if (!rows) {
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return [];
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@ -173,10 +179,10 @@ function wrap(db, dir, dbsMap) {
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if (row.json) {
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obj = JSON.parse(row.json);
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delete row.json;
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} else {
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obj = {};
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}
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delete row.json;
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obj[idnameCased] = row[idname];
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delete row[idname];
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@ -202,6 +208,93 @@ function wrap(db, dir, dbsMap) {
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return results;
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}
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function simpleParse(row) {
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if (!row) {
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return null;
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}
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return simpleMap([row])[0] || null;
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}
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// pull indices from object
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function strainUpdate(id, data/*, vals*/, cb, oldId) {
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var fieldable = [];
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var sql;
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var vals = [];
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['hasOne', 'hasMany', 'hasAndBelongsToMany', 'belongsTo', 'belongsToMany'].forEach(function (relname) {
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var rels = dir[relname];
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if (!rels) {
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return;
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}
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if (!Array.isArray(rels)) {
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rels = [rels];
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}
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// don't save relationships
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rels.forEach(function (colname) {
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delete data[colname];
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delete data[camelCase(colname)];
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// TODO placehold relationships on find / get?
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// data[camelCase(colname)] = null;
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});
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});
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dir.indices.forEach(function (col) {
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// We prioritze the raw name rather than the camelCase name because it's not in the object
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// we give for retrieved entries, so if it's present then the user put it there themselves.
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var val = data[col.name] || data[camelCase(col.name)];
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//if (col.name in data)
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if ('undefined' !== typeof val) {
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/*
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fieldable.push(
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db.escape(snakeCase(col.name))
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+ " = '" + db.escape(val) + "'"
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);
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*/
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fieldable.push(db.escape(snakeCase(col.name)));
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vals.push(val);
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}
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delete data[col.name];
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delete data[camelCase(col.name)];
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});
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if (!oldId) {
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delete data[idnameCased];
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}
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if (!fieldable.length || Object.keys(data).length) {
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vals.push(JSON.stringify(data));
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} else {
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vals.push(null);
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}
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fieldable.push('json');
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vals.push(id);
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sql = cb(fieldable);
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if (debug) {
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console.log('[masterquest-sqlite3] dbwrap.js');
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console.log(sql);
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console.log(vals);
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}
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vals.forEach(function (val) {
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if (null === val || 'number' === typeof val) {
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sql = sql.replace('?', String(val));
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} else {
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sql = sql.replace('?', "'" + db.escape(val) + "'");
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}
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});
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return sql;
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}
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DB.migrate = function (columns) {
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columns.forEach(normalizeColumn);
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@ -233,36 +326,124 @@ function wrap(db, dir, dbsMap) {
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return PromiseA.reject(err);
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}
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if (obj && keys.length) {
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sql += 'WHERE ';
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keys.forEach(function (key, i) {
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if (i !== 0) {
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sql += 'AND ';
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}
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if (null === obj[key]) {
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sql += db.escape(snakeCase(key)) + " IS null";
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}
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else {
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// TODO check that key is some type? ignore undefined?
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sql += db.escape(snakeCase(key)) + " = '" + db.escape(obj[key]) + "'";
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}
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});
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if (params && params.limit) {
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params.limit = parseInt(params.limit, 10);
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// remember to check for the case of NaN
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if (!params.limit || params.limit <= 0) {
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return PromiseA.reject(new Error('limit must be a positive integer'));
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}
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}
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else if (null !== obj || (params && !params.limit)) {
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if (obj && keys.length) {
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var conditions = keys.map(function (key) {
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var dbKey = db.escape(snakeCase(key));
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var value = obj[key];
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if (null === value) {
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return dbKey + ' IS NULL';
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}
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var split, cmd;
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if (typeof value === 'string') {
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value = value.trim();
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if (['IS NULL', 'IS NOT NULL'].indexOf(value.toUpperCase()) !== -1) {
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return dbKey + ' ' + value.toUpperCase();
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}
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split = value.split(' ');
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if (searchConditions[split[0].toUpperCase()]) {
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cmd = split[0].toUpperCase();
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value = split.slice(1).join(' ');
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} else if (searchConditions[split.slice(0, 2).join(' ').toUpperCase()]) {
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cmd = split.slice(0, 2).join(' ').toUpperCase();
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value = split.slice(2).join(' ');
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}
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// If we were given something like "BEGINS WITH 'something quoted'" we don't want
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// to include the quotes (we'll quote it again later) so we strip them out here.
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if (cmd) {
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value = value.replace(/^(['"])(.*)\1$/, '$2');
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}
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}
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if (typeof value === 'object') {
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cmd = value.condition || value.relation || value.cmd;
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value = value.value;
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if (!cmd || !value) {
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err = new Error("'"+key+"' was an object, but missing condition and/or value");
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return;
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}
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if (typeof cmd !== 'string' || !searchConditions[cmd.toUpperCase()]) {
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err = new Error("'"+key+"' tried to use invalid condition '"+cmd+"'");
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return;
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} else {
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cmd = cmd.toUpperCase();
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}
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}
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if (!cmd) {
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cmd = '=';
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}
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// The IN condition is special in that we can't quote the value as a single value,
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// so it requires a little more logic to actually work and still be sanitary.
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if (cmd === 'IN' || cmd === 'NOT IN') {
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if (typeof value === 'string') {
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value = value.split((params || {}).seperator || /[\s,]+/);
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}
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if (!Array.isArray(value)) {
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err = new Error("'"+key+"' has invalid value for use with 'IN'");
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return;
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}
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value = value.map(function (val) {
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return "'"+db.escape(val)+"'";
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});
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return dbKey + ' ' + cmd + ' (' + value.join(',') + ')';
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}
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// The BETWEEN condition is also special for the same reason as IN
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if (cmd === 'BETWEEN' || cmd === 'NOT BETWEEN') {
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if (typeof value === 'string') {
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value = value.split((params || {}).seperator || /[\s,]+(AND\s+)?/i);
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}
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if (!Array.isArray(value) || value.length !== 2) {
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err = new Error("'"+key+"' has invalid value for use with 'BETWEEN'");
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return;
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}
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value = value.map(function (val) {
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return "'"+db.escape(val)+"'";
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});
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return dbKey + ' ' + cmd + ' ' + value.join(' AND ');
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}
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// If we are supposed to compare to another field then make sure the name is correct,
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// and that we don't try to quote the name.
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if (typeof value === 'string' && /^[a-zA-Z0-9_]*$/.test(value)) {
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var snake = snakeCase(value);
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if (dir.indices.some(function (col) { return snake === col.name; })) {
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return dbKey + ' ' + cmd + ' ' + snake;
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}
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}
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return dbKey + ' ' + cmd + " '" + db.escape(value) + "'";
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});
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if (err) {
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return PromiseA.reject(err);
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}
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sql += 'WHERE ' + conditions.join(' AND ');
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}
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else if (null !== obj || !(params && params.limit)) {
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return PromiseA.reject(new Error("to find all you must explicitly specify find(null, { limit: <<int>> })"));
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}
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if (params) {
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if (typeof params.orderByDesc === 'string' && !params.orderBy) {
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params.orderBy = params.orderByDesc;
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params.orderByDesc = true;
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}
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if (params.orderBy) {
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sql += " ORDER BY \"" + db.escape(snakeCase(params.orderBy)) + "\" ";
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sql += " ORDER BY '" + db.escape(snakeCase(params.orderBy)) + "' ";
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if (params.orderByDesc) {
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sql += "DESC ";
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}
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} else if (DB._indicesMap.updated_at) {
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sql += " ORDER BY \"updated_at\" DESC ";
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sql += " ORDER BY 'updated_at' DESC ";
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} else if (DB._indicesMap.created_at) {
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sql += " ORDER BY \"created_at\" DESC ";
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sql += " ORDER BY 'created_at' DESC ";
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}
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if (isFinite(params.limit)) {
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sql += " LIMIT " + parseInt(params.limit, 10);
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@ -380,80 +561,6 @@ function wrap(db, dir, dbsMap) {
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});
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};
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// pull indices from object
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function strainUpdate(id, data/*, vals*/, cb, oldId) {
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var fieldable = [];
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var json;
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var sql;
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var vals = [];
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['hasOne', 'hasMany', 'hasAndBelongsToMany', 'belongsTo', 'belongsToMany'].forEach(function (relname) {
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var rels = dir[relname];
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if (!rels) {
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return;
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}
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if (!Array.isArray(rels)) {
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rels = [rels];
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}
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// don't save relationships
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rels.forEach(function (colname) {
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delete data[colname];
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delete data[camelCase(colname)];
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// TODO placehold relationships on find / get?
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// data[camelCase(colname)] = null;
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});
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});
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dir.indices.forEach(function (col) {
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var val = data[camelCase(col.name)];
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//if (col.name in data)
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if ('undefined' !== typeof val) {
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/*
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fieldable.push(
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db.escape(snakeCase(col.name))
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+ " = '" + db.escape(val) + "'"
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);
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*/
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fieldable.push(db.escape(snakeCase(col.name)));
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vals.push(val);
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}
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delete data[col.name];
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delete data[camelCase(col.name)];
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});
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if (!oldId) {
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delete data[idnameCased];
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}
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if (!fieldable.length || Object.keys(data).length) {
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json = JSON.stringify(data);
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fieldable.push("json");
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//fieldable.push("json = '" + db.escape(json) + "'");
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vals.push(json);
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}
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vals.push(id);
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sql = cb(fieldable);
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if (debug) {
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console.log('[masterquest-sqlite3] dbwrap.js');
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console.log(sql);
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console.log(vals);
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}
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while (vals.length) {
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sql = sql.replace(/\?/, "'" + db.escape(vals.shift()) + "'");
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}
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return sql;
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}
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DB.set = function (id, obj, oldId) {
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obj.updatedAt = Date.now();
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@ -1,6 +1,6 @@
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{
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"name": "masterquest-sqlite3",
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"version": "1.1.0",
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"version": "1.2.0",
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"description": "A NoSQL / SQLite3 Hybrid. All your indices are belong to us. Master Quest.",
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"main": "lib/dbwrap",
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"scripts": {
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