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  138. <h1>Object Instance <code>luci.model.uci</code></h1>
  139. <p></p>
  140. <h2>Functions</h2>
  141. <table class="function_list">
  142. <tr>
  143. <td class="name" nowrap><a href="#Cursor.add">Cursor:add</a>&nbsp;(config, type)</td>
  144. <td class="summary">
  145. Add an anonymous section.</td>
  146. </tr>
  147. <tr>
  148. <td class="name" nowrap><a href="#Cursor.apply">Cursor:apply</a>&nbsp;(rollback)</td>
  149. <td class="summary">
  150. Applies UCI configuration changes.</td>
  151. </tr>
  152. <tr>
  153. <td class="name" nowrap><a href="#Cursor.changes">Cursor:changes</a>&nbsp;(config)</td>
  154. <td class="summary">
  155. Get a table of saved but uncommitted changes.</td>
  156. </tr>
  157. <tr>
  158. <td class="name" nowrap><a href="#Cursor.commit">Cursor:commit</a>&nbsp;(config)</td>
  159. <td class="summary">
  160. Commit saved changes.</td>
  161. </tr>
  162. <tr>
  163. <td class="name" nowrap><a href="#Cursor.confirm">Cursor:confirm</a>&nbsp;()</td>
  164. <td class="summary">
  165. Confirms UCI apply process.</td>
  166. </tr>
  167. <tr>
  168. <td class="name" nowrap><a href="#Cursor.delete">Cursor:delete</a>&nbsp;(config, section, option)</td>
  169. <td class="summary">
  170. Deletes a section or an option.</td>
  171. </tr>
  172. <tr>
  173. <td class="name" nowrap><a href="#Cursor.delete_all">Cursor:delete_all</a>&nbsp;(config, type, comparator)</td>
  174. <td class="summary">
  175. Delete all sections of a given type that match certain criteria.</td>
  176. </tr>
  177. <tr>
  178. <td class="name" nowrap><a href="#Cursor.foreach">Cursor:foreach</a>&nbsp;(config, type, callback)</td>
  179. <td class="summary">
  180. Call a function for every section of a certain type.</td>
  181. </tr>
  182. <tr>
  183. <td class="name" nowrap><a href="#Cursor.get">Cursor:get</a>&nbsp;(config, section, option)</td>
  184. <td class="summary">
  185. Get a section type or an option
  186. </td>
  187. </tr>
  188. <tr>
  189. <td class="name" nowrap><a href="#Cursor.get_all">Cursor:get_all</a>&nbsp;(config, section)</td>
  190. <td class="summary">
  191. Get all sections of a config or all values of a section.</td>
  192. </tr>
  193. <tr>
  194. <td class="name" nowrap><a href="#Cursor.get_bool">Cursor:get_bool</a>&nbsp;(config, section, option)</td>
  195. <td class="summary">
  196. Get a boolean option and return it's value as true or false.</td>
  197. </tr>
  198. <tr>
  199. <td class="name" nowrap><a href="#Cursor.get_confdir">Cursor:get_confdir</a>&nbsp;()</td>
  200. <td class="summary">
  201. Get the configuration directory.</td>
  202. </tr>
  203. <tr>
  204. <td class="name" nowrap><a href="#Cursor.get_first">Cursor:get_first</a>&nbsp;(config, type, option, default)</td>
  205. <td class="summary">
  206. Get the given option from the first section with the given type.</td>
  207. </tr>
  208. <tr>
  209. <td class="name" nowrap><a href="#Cursor.get_list">Cursor:get_list</a>&nbsp;(config, section, option)</td>
  210. <td class="summary">
  211. Get an option or list and return values as table.</td>
  212. </tr>
  213. <tr>
  214. <td class="name" nowrap><a href="#Cursor.get_savedir">Cursor:get_savedir</a>&nbsp;()</td>
  215. <td class="summary">
  216. Get the directory for uncomitted changes.</td>
  217. </tr>
  218. <tr>
  219. <td class="name" nowrap><a href="#Cursor.get_session_id">Cursor:get_session_id</a>&nbsp;()</td>
  220. <td class="summary">
  221. Get the effective session ID.</td>
  222. </tr>
  223. <tr>
  224. <td class="name" nowrap><a href="#Cursor.load">Cursor:load</a>&nbsp;(config)</td>
  225. <td class="summary">
  226. Manually load a config.</td>
  227. </tr>
  228. <tr>
  229. <td class="name" nowrap><a href="#Cursor.revert">Cursor:revert</a>&nbsp;(config)</td>
  230. <td class="summary">
  231. Revert saved but uncommitted changes.</td>
  232. </tr>
  233. <tr>
  234. <td class="name" nowrap><a href="#Cursor.rollback">Cursor:rollback</a>&nbsp;()</td>
  235. <td class="summary">
  236. Cancels UCI apply process.</td>
  237. </tr>
  238. <tr>
  239. <td class="name" nowrap><a href="#Cursor.rollback_pending">Cursor:rollback_pending</a>&nbsp;()</td>
  240. <td class="summary">
  241. Checks whether a pending rollback is scheduled.</td>
  242. </tr>
  243. <tr>
  244. <td class="name" nowrap><a href="#Cursor.save">Cursor:save</a>&nbsp;(config)</td>
  245. <td class="summary">
  246. Saves changes made to a config to make them committable.</td>
  247. </tr>
  248. <tr>
  249. <td class="name" nowrap><a href="#Cursor.section">Cursor:section</a>&nbsp;(config, type, name, values)</td>
  250. <td class="summary">
  251. Create a new section and initialize it with data.</td>
  252. </tr>
  253. <tr>
  254. <td class="name" nowrap><a href="#Cursor.set">Cursor:set</a>&nbsp;(config, section, option, value)</td>
  255. <td class="summary">
  256. Set a value or create a named section.</td>
  257. </tr>
  258. <tr>
  259. <td class="name" nowrap><a href="#Cursor.set_confdir">Cursor:set_confdir</a>&nbsp;(directory)</td>
  260. <td class="summary">
  261. Set the configuration directory.</td>
  262. </tr>
  263. <tr>
  264. <td class="name" nowrap><a href="#Cursor.set_list">Cursor:set_list</a>&nbsp;(config, section, option, value)</td>
  265. <td class="summary">
  266. Set given values as list.</td>
  267. </tr>
  268. <tr>
  269. <td class="name" nowrap><a href="#Cursor.set_savedir">Cursor:set_savedir</a>&nbsp;(directory)</td>
  270. <td class="summary">
  271. Set the directory for uncommitted changes.</td>
  272. </tr>
  273. <tr>
  274. <td class="name" nowrap><a href="#Cursor.set_session_id">Cursor:set_session_id</a>&nbsp;(id)</td>
  275. <td class="summary">
  276. Set the effective session ID.</td>
  277. </tr>
  278. <tr>
  279. <td class="name" nowrap><a href="#Cursor.substate">Cursor:substate</a>&nbsp;()</td>
  280. <td class="summary">
  281. Create a sub-state of this cursor.</td>
  282. </tr>
  283. <tr>
  284. <td class="name" nowrap><a href="#Cursor.tset">Cursor:tset</a>&nbsp;(config, section, values)</td>
  285. <td class="summary">
  286. Updated the data of a section using data from a table.</td>
  287. </tr>
  288. <tr>
  289. <td class="name" nowrap><a href="#Cursor.unload">Cursor:unload</a>&nbsp;(config)</td>
  290. <td class="summary">
  291. Discard changes made to a config.</td>
  292. </tr>
  293. <tr>
  294. <td class="name" nowrap><a href="#cursor">cursor</a>&nbsp;()</td>
  295. <td class="summary">
  296. Create a new UCI-Cursor.</td>
  297. </tr>
  298. <tr>
  299. <td class="name" nowrap><a href="#cursor_state">cursor_state</a>&nbsp;()</td>
  300. <td class="summary">
  301. Create a new Cursor initialized to the state directory.</td>
  302. </tr>
  303. </table>
  304. <br/>
  305. <br/>
  306. <h2><a name="functions"></a>Functions</h2>
  307. <dl class="function">
  308. <dt><a name="Cursor.add"></a><strong>Cursor:add</strong>&nbsp;(config, type)</dt>
  309. <dd>
  310. Add an anonymous section.
  311. <h3>Parameters</h3>
  312. <ul>
  313. <li>
  314. config: UCI config
  315. </li>
  316. <li>
  317. type: UCI section type
  318. </li>
  319. </ul>
  320. <h3>Return value:</h3>
  321. Name of created section
  322. </dd>
  323. <dt><a name="Cursor.apply"></a><strong>Cursor:apply</strong>&nbsp;(rollback)</dt>
  324. <dd>
  325. Applies UCI configuration changes.
  326. If the rollback parameter is set to true, the apply function will invoke the
  327. rollback mechanism which causes the configuration to be automatically reverted
  328. if no confirm() call occurs within a certain timeout.
  329. The current default timeout is 30s and can be increased using the
  330. "luci.apply.timeout" uci configuration key.
  331. <h3>Parameters</h3>
  332. <ul>
  333. <li>
  334. rollback: Enable rollback mechanism
  335. </li>
  336. </ul>
  337. <h3>Return value:</h3>
  338. Boolean whether operation succeeded
  339. </dd>
  340. <dt><a name="Cursor.changes"></a><strong>Cursor:changes</strong>&nbsp;(config)</dt>
  341. <dd>
  342. Get a table of saved but uncommitted changes.
  343. <h3>Parameters</h3>
  344. <ul>
  345. <li>
  346. config: UCI config
  347. </li>
  348. </ul>
  349. <h3>Return value:</h3>
  350. Table of changes
  351. <h3>See also:</h3>
  352. <ul>
  353. <li><a href="#Cursor.save">
  354. Cursor:save
  355. </a>
  356. </ul>
  357. </dd>
  358. <dt><a name="Cursor.commit"></a><strong>Cursor:commit</strong>&nbsp;(config)</dt>
  359. <dd>
  360. Commit saved changes.
  361. <h3>Parameters</h3>
  362. <ul>
  363. <li>
  364. config: UCI config
  365. </li>
  366. </ul>
  367. <h3>Return value:</h3>
  368. Boolean whether operation succeeded
  369. <h3>See also:</h3>
  370. <ul>
  371. <li><a href="#Cursor.revert">
  372. Cursor:revert
  373. </a>
  374. <li><a href="#Cursor.save">
  375. Cursor:save
  376. </a>
  377. </ul>
  378. </dd>
  379. <dt><a name="Cursor.confirm"></a><strong>Cursor:confirm</strong>&nbsp;()</dt>
  380. <dd>
  381. Confirms UCI apply process.
  382. If a previous UCI apply with rollback has been invoked using apply(true),
  383. this function confirms the process and cancels the pending rollback timer.
  384. If no apply with rollback session is active, the function has no effect and
  385. returns with a "No data" error.
  386. <h3>Return value:</h3>
  387. Boolean whether operation succeeded
  388. </dd>
  389. <dt><a name="Cursor.delete"></a><strong>Cursor:delete</strong>&nbsp;(config, section, option)</dt>
  390. <dd>
  391. Deletes a section or an option.
  392. <h3>Parameters</h3>
  393. <ul>
  394. <li>
  395. config: UCI config
  396. </li>
  397. <li>
  398. section: UCI section name
  399. </li>
  400. <li>
  401. option: UCI option (optional)
  402. </li>
  403. </ul>
  404. <h3>Return value:</h3>
  405. Boolean whether operation succeeded
  406. </dd>
  407. <dt><a name="Cursor.delete_all"></a><strong>Cursor:delete_all</strong>&nbsp;(config, type, comparator)</dt>
  408. <dd>
  409. Delete all sections of a given type that match certain criteria.
  410. <h3>Parameters</h3>
  411. <ul>
  412. <li>
  413. config: UCI config
  414. </li>
  415. <li>
  416. type: UCI section type
  417. </li>
  418. <li>
  419. comparator: Function that will be called for each section and returns
  420. a boolean whether to delete the current section (optional)
  421. </li>
  422. </ul>
  423. </dd>
  424. <dt><a name="Cursor.foreach"></a><strong>Cursor:foreach</strong>&nbsp;(config, type, callback)</dt>
  425. <dd>
  426. Call a function for every section of a certain type.
  427. <h3>Parameters</h3>
  428. <ul>
  429. <li>
  430. config: UCI config
  431. </li>
  432. <li>
  433. type: UCI section type
  434. </li>
  435. <li>
  436. callback: Function to be called
  437. </li>
  438. </ul>
  439. <h3>Return value:</h3>
  440. Boolean whether operation succeeded
  441. </dd>
  442. <dt><a name="Cursor.get"></a><strong>Cursor:get</strong>&nbsp;(config, section, option)</dt>
  443. <dd>
  444. Get a section type or an option
  445. <h3>Parameters</h3>
  446. <ul>
  447. <li>
  448. config: UCI config
  449. </li>
  450. <li>
  451. section: UCI section name
  452. </li>
  453. <li>
  454. option: UCI option (optional)
  455. </li>
  456. </ul>
  457. <h3>Return value:</h3>
  458. UCI value
  459. </dd>
  460. <dt><a name="Cursor.get_all"></a><strong>Cursor:get_all</strong>&nbsp;(config, section)</dt>
  461. <dd>
  462. Get all sections of a config or all values of a section.
  463. <h3>Parameters</h3>
  464. <ul>
  465. <li>
  466. config: UCI config
  467. </li>
  468. <li>
  469. section: UCI section name (optional)
  470. </li>
  471. </ul>
  472. <h3>Return value:</h3>
  473. Table of UCI sections or table of UCI values
  474. </dd>
  475. <dt><a name="Cursor.get_bool"></a><strong>Cursor:get_bool</strong>&nbsp;(config, section, option)</dt>
  476. <dd>
  477. Get a boolean option and return it's value as true or false.
  478. <h3>Parameters</h3>
  479. <ul>
  480. <li>
  481. config: UCI config
  482. </li>
  483. <li>
  484. section: UCI section name
  485. </li>
  486. <li>
  487. option: UCI option
  488. </li>
  489. </ul>
  490. <h3>Return value:</h3>
  491. Boolean
  492. </dd>
  493. <dt><a name="Cursor.get_confdir"></a><strong>Cursor:get_confdir</strong>&nbsp;()</dt>
  494. <dd>
  495. Get the configuration directory.
  496. <h3>Return value:</h3>
  497. Configuration directory
  498. </dd>
  499. <dt><a name="Cursor.get_first"></a><strong>Cursor:get_first</strong>&nbsp;(config, type, option, default)</dt>
  500. <dd>
  501. Get the given option from the first section with the given type.
  502. <h3>Parameters</h3>
  503. <ul>
  504. <li>
  505. config: UCI config
  506. </li>
  507. <li>
  508. type: UCI section type
  509. </li>
  510. <li>
  511. option: UCI option (optional)
  512. </li>
  513. <li>
  514. default: Default value (optional)
  515. </li>
  516. </ul>
  517. <h3>Return value:</h3>
  518. UCI value
  519. </dd>
  520. <dt><a name="Cursor.get_list"></a><strong>Cursor:get_list</strong>&nbsp;(config, section, option)</dt>
  521. <dd>
  522. Get an option or list and return values as table.
  523. <h3>Parameters</h3>
  524. <ul>
  525. <li>
  526. config: UCI config
  527. </li>
  528. <li>
  529. section: UCI section name
  530. </li>
  531. <li>
  532. option: UCI option
  533. </li>
  534. </ul>
  535. <h3>Return value:</h3>
  536. table. If the option was not found, you will simply get an empty
  537. table.
  538. </dd>
  539. <dt><a name="Cursor.get_savedir"></a><strong>Cursor:get_savedir</strong>&nbsp;()</dt>
  540. <dd>
  541. Get the directory for uncomitted changes.
  542. <h3>Return value:</h3>
  543. Save directory
  544. </dd>
  545. <dt><a name="Cursor.get_session_id"></a><strong>Cursor:get_session_id</strong>&nbsp;()</dt>
  546. <dd>
  547. Get the effective session ID.
  548. <h3>Return value:</h3>
  549. String containing the session ID
  550. </dd>
  551. <dt><a name="Cursor.load"></a><strong>Cursor:load</strong>&nbsp;(config)</dt>
  552. <dd>
  553. Manually load a config.
  554. <h3>Parameters</h3>
  555. <ul>
  556. <li>
  557. config: UCI config
  558. </li>
  559. </ul>
  560. <h3>Return value:</h3>
  561. Boolean whether operation succeeded
  562. <h3>See also:</h3>
  563. <ul>
  564. <li><a href="#Cursor.save">
  565. Cursor:save
  566. </a>
  567. <li><a href="#Cursor.unload">
  568. Cursor:unload
  569. </a>
  570. </ul>
  571. </dd>
  572. <dt><a name="Cursor.revert"></a><strong>Cursor:revert</strong>&nbsp;(config)</dt>
  573. <dd>
  574. Revert saved but uncommitted changes.
  575. <h3>Parameters</h3>
  576. <ul>
  577. <li>
  578. config: UCI config
  579. </li>
  580. </ul>
  581. <h3>Return value:</h3>
  582. Boolean whether operation succeeded
  583. <h3>See also:</h3>
  584. <ul>
  585. <li><a href="#Cursor.commit">
  586. Cursor:commit
  587. </a>
  588. <li><a href="#Cursor.save">
  589. Cursor:save
  590. </a>
  591. </ul>
  592. </dd>
  593. <dt><a name="Cursor.rollback"></a><strong>Cursor:rollback</strong>&nbsp;()</dt>
  594. <dd>
  595. Cancels UCI apply process.
  596. If a previous UCI apply with rollback has been invoked using apply(true),
  597. this function cancels the process and rolls back the configuration to the
  598. pre-apply state.
  599. If no apply with rollback session is active, the function has no effect and
  600. returns with a "No data" error.
  601. <h3>Return value:</h3>
  602. Boolean whether operation succeeded
  603. </dd>
  604. <dt><a name="Cursor.rollback_pending"></a><strong>Cursor:rollback_pending</strong>&nbsp;()</dt>
  605. <dd>
  606. Checks whether a pending rollback is scheduled.
  607. If a previous UCI apply with rollback has been invoked using apply(true),
  608. and has not been confirmed or rolled back yet, this function returns true
  609. and the remaining time until rollback in seconds. If no rollback is pending,
  610. the function returns false. On error, the function returns false and an
  611. additional string describing the error.
  612. <h3>Return values:</h3>
  613. <ol>
  614. <li>Boolean whether rollback is pending
  615. <li>Remaining time in seconds
  616. </ol>
  617. </dd>
  618. <dt><a name="Cursor.save"></a><strong>Cursor:save</strong>&nbsp;(config)</dt>
  619. <dd>
  620. Saves changes made to a config to make them committable.
  621. <h3>Parameters</h3>
  622. <ul>
  623. <li>
  624. config: UCI config
  625. </li>
  626. </ul>
  627. <h3>Return value:</h3>
  628. Boolean whether operation succeeded
  629. <h3>See also:</h3>
  630. <ul>
  631. <li><a href="#Cursor.load">
  632. Cursor:load
  633. </a>
  634. <li><a href="#Cursor.unload">
  635. Cursor:unload
  636. </a>
  637. </ul>
  638. </dd>
  639. <dt><a name="Cursor.section"></a><strong>Cursor:section</strong>&nbsp;(config, type, name, values)</dt>
  640. <dd>
  641. Create a new section and initialize it with data.
  642. <h3>Parameters</h3>
  643. <ul>
  644. <li>
  645. config: UCI config
  646. </li>
  647. <li>
  648. type: UCI section type
  649. </li>
  650. <li>
  651. name: UCI section name (optional)
  652. </li>
  653. <li>
  654. values: Table of key - value pairs to initialize the section with
  655. </li>
  656. </ul>
  657. <h3>Return value:</h3>
  658. Name of created section
  659. </dd>
  660. <dt><a name="Cursor.set"></a><strong>Cursor:set</strong>&nbsp;(config, section, option, value)</dt>
  661. <dd>
  662. Set a value or create a named section.
  663. When invoked with three arguments <code>config</code>, <code>sectionname</code>, <code>sectiontype</code>,
  664. then a named section of the given type is created.
  665. When invoked with four arguments <code>config</code>, <code>sectionname</code>, <code>optionname</code> and
  666. <code>optionvalue</code> then the value of the specified option is set to the given value.
  667. <h3>Parameters</h3>
  668. <ul>
  669. <li>
  670. config: UCI config
  671. </li>
  672. <li>
  673. section: UCI section name
  674. </li>
  675. <li>
  676. option: UCI option or UCI section type
  677. </li>
  678. <li>
  679. value: UCI value or nothing if you want to create a section
  680. </li>
  681. </ul>
  682. <h3>Return value:</h3>
  683. Boolean whether operation succeeded
  684. </dd>
  685. <dt><a name="Cursor.set_confdir"></a><strong>Cursor:set_confdir</strong>&nbsp;(directory)</dt>
  686. <dd>
  687. Set the configuration directory.
  688. <h3>Parameters</h3>
  689. <ul>
  690. <li>
  691. directory: UCI configuration directory
  692. </li>
  693. </ul>
  694. <h3>Return value:</h3>
  695. Boolean whether operation succeeded
  696. </dd>
  697. <dt><a name="Cursor.set_list"></a><strong>Cursor:set_list</strong>&nbsp;(config, section, option, value)</dt>
  698. <dd>
  699. Set given values as list. Setting a list option to an empty list
  700. has the same effect as deleting the option.
  701. <h3>Parameters</h3>
  702. <ul>
  703. <li>
  704. config: UCI config
  705. </li>
  706. <li>
  707. section: UCI section name
  708. </li>
  709. <li>
  710. option: UCI option
  711. </li>
  712. <li>
  713. value: Value or table. Non-table values will be set as single
  714. item UCI list.
  715. </li>
  716. </ul>
  717. <h3>Return value:</h3>
  718. Boolean whether operation succeeded
  719. </dd>
  720. <dt><a name="Cursor.set_savedir"></a><strong>Cursor:set_savedir</strong>&nbsp;(directory)</dt>
  721. <dd>
  722. Set the directory for uncommitted changes.
  723. <h3>Parameters</h3>
  724. <ul>
  725. <li>
  726. directory: UCI changes directory
  727. </li>
  728. </ul>
  729. <h3>Return value:</h3>
  730. Boolean whether operation succeeded
  731. </dd>
  732. <dt><a name="Cursor.set_session_id"></a><strong>Cursor:set_session_id</strong>&nbsp;(id)</dt>
  733. <dd>
  734. Set the effective session ID.
  735. <h3>Parameters</h3>
  736. <ul>
  737. <li>
  738. id: String containing the session ID to set
  739. </li>
  740. </ul>
  741. <h3>Return value:</h3>
  742. Boolean whether operation succeeded
  743. </dd>
  744. <dt><a name="Cursor.substate"></a><strong>Cursor:substate</strong>&nbsp;()</dt>
  745. <dd>
  746. Create a sub-state of this cursor.
  747. The sub-state is tied to the parent cursor, means it the parent unloads or
  748. loads configs, the sub state will do so as well.
  749. <h3>Return value:</h3>
  750. UCI state cursor tied to the parent cursor
  751. </dd>
  752. <dt><a name="Cursor.tset"></a><strong>Cursor:tset</strong>&nbsp;(config, section, values)</dt>
  753. <dd>
  754. Updated the data of a section using data from a table.
  755. <h3>Parameters</h3>
  756. <ul>
  757. <li>
  758. config: UCI config
  759. </li>
  760. <li>
  761. section: UCI section name (optional)
  762. </li>
  763. <li>
  764. values: Table of key - value pairs to update the section with
  765. </li>
  766. </ul>
  767. </dd>
  768. <dt><a name="Cursor.unload"></a><strong>Cursor:unload</strong>&nbsp;(config)</dt>
  769. <dd>
  770. Discard changes made to a config.
  771. <h3>Parameters</h3>
  772. <ul>
  773. <li>
  774. config: UCI config
  775. </li>
  776. </ul>
  777. <h3>Return value:</h3>
  778. Boolean whether operation succeeded
  779. <h3>See also:</h3>
  780. <ul>
  781. <li><a href="#Cursor.load">
  782. Cursor:load
  783. </a>
  784. <li><a href="#Cursor.save">
  785. Cursor:save
  786. </a>
  787. </ul>
  788. </dd>
  789. <dt><a name="cursor"></a><strong>cursor</strong>&nbsp;()</dt>
  790. <dd>
  791. Create a new UCI-Cursor.
  792. <h3>Return value:</h3>
  793. UCI-Cursor
  794. </dd>
  795. <dt><a name="cursor_state"></a><strong>cursor_state</strong>&nbsp;()</dt>
  796. <dd>
  797. Create a new Cursor initialized to the state directory.
  798. <h3>Return value:</h3>
  799. UCI cursor
  800. </dd>
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