How to use readDataBlock method in wpt

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DwrProxy.js

Source:DwrProxy.js

1Ext.namespace( "Ext.ux.data" );23/**4 * @class Ext.ux.data.DwrProxy5 * @extends Ext.data.DataProxy6 * @author loeppky An implementation of Ext.data.DataProxy that uses DWR to make a remote call. Note that not all of7 *         Ext.data.DataProxy's configuration options make sense for Ext.ux.data.DwrProxy. The following constructor8 *         sample code contains all the available options that can be set: <code><pre>9 * new Ext.ux.data.DwrProxy({10 * // Defined by Ext.data.DataProxy11 * apiActionToHanderMap : {12 * read : {13 * dwrFunction : DwrInterface.read,14 * // Define a custom function that passes the paging parameters to DWR.15 * getDwrArgsFunction : function(request) {16 * var pagingParamNames = this.store.paramNames;17 * var params = request.params;18 * return [params[pagingParamNames.start], params[pagingParamNames.limit]];19 * },20 * // The scope is set to &quot;this&quot; so that this store's paging parameter names can be accessed.21 * getDwrArgsScope : this22 * },23 * // These aren't needed if only doing reading.24 * create : {25 * // Use the default function which will set the DWR args to an array of all the objects to create.26 * dwrFunction : DwrInterface.create27 * },28 * update : {29 * dwrFunction : DwrInterface.update30 * },31 * destroy : {32 * dwrFunction : DwrInterface.destroy,33 * // Define a custom function to pass a login and password, in addition to the objects to delete.34 * getDwrArgsFunction : function(request, recordDataArray) {35 * return [recordDataArray, this.login, this.password];36 * }37 * getDwrArgsScope : this38 * }39 * }40 * });41 * </pre></code>42 * @constructor43 * @param {Object}44 *           configOrMethod The config object, or a read method.45 * @param {Function}46 *           errorHandler47 */48Ext.ux.data.DwrProxy = function( configOrMethod, errorHandler ) {4950   // changed by PP for backwards compatibility with our old Gemma code, where we don't generally use the api:{read:51   // xxx}52   // format.5354   this.apiActionToHandlerMap = {};55   if ( configOrMethod.apiActionToHandlerMap ) {56      Ext.iterate( Ext.data.Api.actions, function( action ) {57         var actionHandlerConfig = configOrMethod.apiActionToHandlerMap[action];58         if ( actionHandlerConfig ) {59            actionHandlerConfig.action = action;60            this.apiActionToHandlerMap[action] = new Ext.ux.data.DwrProxy.ActionHandler( actionHandlerConfig );61         }62      }, this );6364      // Ext.data.DataProxy requires that an API action be defined under the "api" key.65      // If it isn't, an Ext.data.DataProxy.Error is thrown.66      // To avoid this, api is set to apiActionToHandlerMap since they share the same keys ("create", "read",67      // "update",68      // and "destroy").69      configOrMethod.api = this.apiActionToHandlerMap;70      Ext.ux.data.DwrProxy.superclass.constructor.call( this, configOrMethod );71   } else if ( typeof configOrMethod == 'function' ) {72      // Backwards compatibility (PP)73      // Construct Ext.ux.data.DwrProxy.ActionHandlers from any configs objects.74      this.apiActionToHandlerMap['read'] = new Ext.ux.data.DwrProxy.ActionHandler( {75         action : 'read',76         dwrFunction : configOrMethod77      } );7879      var upconf = configOrMethod || {};80      upconf.api = this.apiActionToHandlerMap;81      Ext.ux.data.DwrProxy.superclass.constructor.call( this, upconf );82   } else {83      throw "OH no! + configOrMethod: " + configOrMethod;84   }8586   if ( typeof errorHandler == 'function' ) {87      this.errorHandler = errorHandler;88   } else {89      this.errorHandler = Gemma.genericErrorHandler;90   }9192};9394// for backwards compatibility.95Ext.data.DWRProxy = Ext.ux.data.DwrProxy;9697Ext.extend( Ext.ux.data.DwrProxy, Ext.data.DataProxy, {9899   /**100    * @cfg {Object} apiActionToHandlerMap. A map of {@link Ext.data.Api} actions to corresponding101    *      {@link Ext.ux.data.DwrProxy.ActionHandler}s. Note: this option is very similar to102    *      {@link Ext.data.DataProxy#api}, but since the values need to be different, this new option is created so as103    *      not to create confusion. The name of this option is also more clear.104    */105   apiActionToHandlerMap : {},106107   /**108    * DwrProxy implementation of {@link Ext.data.DataProxy#doRequest}. This implementation attempts to mirror109    * {@link Ext.data.HttpProxy#doRequest} as much as possible. The getDwrArgsFunction is called for the corresponding110    * action, and then a request is made for the dwrFunction that corresponds with the provided action. See111    * {@link Ext.data.DataProxy#request} for the parameter descriptions.112    * 113    * @private114    */115   doRequest : function( action, records, params, reader, callback, scope, options ) {116      var request = new Ext.ux.data.DataProxy.Request( action, records, params, reader, callback, scope, options );117      var apiActionHandler = this.apiActionToHandlerMap[action];118      if ( !apiActionHandler ) {119         throw new Exception( 'No API Action Handler defined for action: ' + action );120      }121122      var dwrArgs = apiActionHandler.getDwrArgsFunction.call( apiActionHandler.getDwrArgsScope, request, this123         .getRecordDataArray( records ), this.getRecordDataBeforeUpdateArray( records ) )124         || [];125126      dwrArgs.push( this.createCallback( request ) );127      apiActionHandler.dwrFunction.apply( Object, dwrArgs ); // the scope for calling the dwrFunction doesn't128      // matter, so we simply set it to Object.129   },130131   /**132    * @param {Ext.data.Record[]}133    *           records The {@link Ext.data.Record}s to pull the data out of.134    * @return {Object[]} Array containing the result of {@link Ext.data.Record#data} for each {@link Ext.data.Record}.135    *         This is used so the raw {@link Ext.data.Record}s are not sent to DWR, since they have fields the DWR DTO136    *         won't be expecting.137    */138   getRecordDataArray : function( records ) {139      return Ext.pluck( records, 'data' ) || [];140   },141142   /**143    * @param {Ext.data.Record[]}144    *           records The {@link Ext.data.Record}s that have been updated to get their pre-upadate data from.145    * @return {Object[]} Array containing the {@link Ext.data.Record#data} before it was updated. This is used so the146    *         raw {@link Ext.data.Record}s are not sent to DWR, since they have fields the DWR DTO won't be expecting.147    */148   getRecordDataBeforeUpdateArray : function( records ) {149      var recordDataBeforeUpdate = [];150      Ext.each( records, function( record ) {151         // Create the record data as it existed before it was updated.152         recordDataBeforeUpdate.push( Ext.apply( {}, record.modified, record.data ) );153      } );154      return recordDataBeforeUpdate;155   },156157   /**158    * Helper method for doRequest which returns a callback function for a DWR request. The returned callback function in159    * turn invokes the callback function within the provided {Ext.ux.data.DataProxy.Request}. This mirrors160    * HttpProxy#createCallsback. DWR is unique though in that it allows one to define a callback function for success161    * and callback function for an exception. This errorHandler callback parallels Ext's "response exception" case. This162    * method thus returns two callback functions groupded as a single object that can be appended to the DWR function163    * arguments as required by DWR.164    * 165    * @param {Ext.ux.data.DataProxy.Request}166    *           request The arguments passed to {@link #doRequest}.167    * @private168    */169   createCallback : function( request ) {170      return {171         callback : function( response ) {172            if ( request.action === Ext.data.Api.actions.read ) {173               this.onRead( request, response );174            } else {175               this.onWrite( request, response );176            }177         }.createDelegate( this ),178         errorHandler : function( message, exception ) {179            // The event is supposed to pass the response, but since DWR doesn't provide that to us, we pass180            // the message.181            this.handleResponseException( request, message, exception );182         }.createDelegate( this )183      };184   },185186   /**187    * Helper method for createCallback for handling the read action. After creating records from the provided response,188    * it calls the callback function within the provided {Ext.ux.data.DataProxy.Request}. This mirrors HttpProxy#onRead.189    * 190    * @param {Ext.ux.data.DataProxy.Request}191    *           request The arguments passed to {@link #doRequest}.192    * @param {Object}193    *           response The response from the DWR call. This should be an Object which can be converted to194    *           {@link Ext.data.Records}.195    * @private196    */197   onRead : function( request, response ) {198      try {199         // Call readRecords() instead of read because read() will attempt to decode JSON to create an200         // Object,201         // but as this point DWR has already created an Object.202         readDataBlock = request.reader.readRecords( response );203      } catch (e) {204         return this.handleResponseException( request, response, e );205      }206207      if ( readDataBlock === undefined ) {208         readDataBlock = {209            success : true,210            data : []211         };212      }213214      if ( readDataBlock.success === false ) {215         this.fireEvent( "exception", this, 'remote', request.action, request.options, response, null );216      } else {217         this.fireEvent( "load", this, request, request.options );218      }219220      // The callback will usually be store.loadRecords.221      request.callback.call( request.scope, readDataBlock, request.options, readDataBlock.success );222   },223224   /**225    * Helper method for createCallback for handling the create, update, and delete actions. This mirrors226    * HttpProxy#onWrite227    * 228    * @param {Ext.ux.data.DataProxy.Request}229    *           request The arguments passed to {@link #doRequest}.230    * @param {Object}231    *           response The response from the DWR call. This should be an Object which can be converted to232    *           {@link Ext.data.Records}.233    * @private234    */235   onWrite : function( request, response ) {236      var readDataBlock;237      try {238         readDataBlock = request.reader.readResponse( request.action, response );239      } catch (e) {240         return this.handleResponseException( request, response, e );241      }242243      if ( readDataBlock === undefined ) {244         readDataBlock = {245            success : true,246            data : []247         };248      }249250      if ( readDataBlock && readDataBlock.success === false ) {251         this.fireEvent( "exception", this, 'remote', request.action, request.options, response, request.records );252      } else {253         this.fireEvent( "write", this, request.action, readDataBlock.data, readDataBlock, request.records,254            request.options );255      }256      // store.onCreateRecords or onUpdateRecords or onDestroyRecords.257      request.callback.call( request.scope, readDataBlock.data, readDataBlock, readDataBlock.success );258   },259260   /**261    * @param {Ext.ux.data.DataProxy.Request}262    *           request The arguments passed to {@link #doRequest}.263    * @param {Object}264    *           response The response from the DWR call.265    * @param {Object}266    *           exception Exception that was thrown processing the request.267    */268   handleResponseException : function( request, response, exception ) {269      this.fireEvent( "exception", this, 'response', request.action, request.options, response, exception );270      if ( typeof this.errorHandler == 'function' ) {271         this.errorHandler( "Error during " + request.action, exception );272      }273      request.callback.call( request.scope, null, request.options, false );274   }275} );276277/**278 * @class Ext.ux.data.DwrProxy.ActionHandler Encapsulates the parameters passed to {@link Ext.data.DataProxy#request}.279 * @constructor280 * @param {Object}281 *           config The config object.282 * @cfg {String} action [Required] The {@link Ext.data.Api} action this handler is for.283 * @cfg {Function} dwrFunction [Required] The DWR-generated function to call for the action.284 * @cfg {Function} getDwrArgsFunction [Optional] Function to call to generate the arguments for the dwrFunction. This285 *      {@link Function} will be passed: - {@link Ext.ux.data.DataProxy.Request} This is useful for all action. -286 *      {@link Ext.data.Record#data}s to write with their current (dirty) values. This is useful for all write actions. -287 *      {@link Ext.data.Record#data}s to write with the values before any changes were made. This is only useful for288 *      updates. The getDwrArgsFunction must return an Array of arguments in the order needed by the dwrFunction. This289 *      class will generate the DWR callback function (the final argument passed to the dwrFunction). If no290 *      getDwrArgsFunction is defined, see {@link #defaultGetDwrArgsFunctions} for defaults.291 * @cfg {Object} getDwrArgsScope [Optional] The scope to execute getDwrArgsFunction. Defaults to "Object".292 */293Ext.ux.data.DwrProxy.ActionHandler = function( config ) {294   Ext.apply( this, config );295   if ( !this.action ) {296      throw new Exception( '"action" is not defined.' );297   }298   if ( !Ext.data.Api.isAction( this.action ) ) {299      throw new Exception( this.action + ' is not a valid Ext.data.Api action.' );300   }301   if ( !this.dwrFunction ) {302      throw new Exception( '"dwrFunction" is not defined.' );303   }304   if ( !this.getDwrArgsFunction ) {305      this.getDwrArgsFunction = this.defaultGetDwrArgsFunctions[this.action];306   }307   if ( !this.getDwrArgsScope ) {308      this.getDwrArgsScope = Object;309   }310};311Ext.extend( Ext.ux.data.DwrProxy.ActionHandler, Object, {312313   /*314    * Private properties315    */316   defaultGetDwrArgsFunctions : {317      /**318       * @return {Array} MODIFIED by PP to pass request.options.params (or an empty array), which is the oldstyle.319       * @private320       */321      read : function( request ) {322         // old way323         if ( request.options && request.options.params && request.options.params.push ) {324            return request.options.params;325         }326         // new way.327         return [];328      },329330      /**331       * @param {Ext.ux.data.DataProxy.Request}332       *           request333       * @param {Array}334       *           recordDataArray Array of {@link Ext.data.Record#data} to write.335       * @return {Object[]} The recordDataArray wrapped in an array so the dwrFunction will send one parameter: a list336       *         of {@link Ext.data.Record#data}s to create.337       * @private338       */339      create : function( request, recordDataArray ) {340         return [ recordDataArray ];341      },342343      /**344       * @param {Ext.ux.data.DataProxy.Request}345       *           request346       * @param {Array}347       *           recordDataArray Array of {@link Ext.data.Record#data} to write.348       * @param {Array}349       *           recordDataArray Array of {@link Ext.data.Record#data} to update.350       * @return {Object[]} The oldRecordDataArray and recordDataArray wrapped in an array so the dwrFunction will send351       *         two parameters: a list of {@link Ext.data.Record#data}s that are to be updated and a list of their352       *         corresponding new values.353       * @private354       */355      update : function( request, recordDataArray, oldRecordDataArray ) {356         /*357          * MODIFIED by PP to just take the records to be modified.358          */359         // return [oldRecordDataArray, recordDataArray];360         return [ recordDataArray ];361      },362363      /**364       * @param {Ext.ux.data.DataProxy.Request}365       *           request366       * @param {Array}367       *           recordDataArray Array of {@link Ext.data.Record#data} to write.368       * @return {Object[]} The recordDataArray wrapped in an array so the dwrFunction will send one parameter: a list369       *         of {@link Ext.data.Record#data}s to destroy.370       * @private371       */372      destroy : function( request, recordDataArray ) {373         return [ recordDataArray ];374      }375   }376} );377378Ext.namespace( "Ext.ux.data.DataProxy" );379/**380 * @class Ext.ux.data.DataProxy.Request Encapsulates the parameters passed to {@link Ext.data.DataProxy#request}.381 * @constructor382 * @param {String}383 *           action The crud action type (create, read, update, destroy). Note: only "read" is currently supported.384 * @param {Ext.data.Record/Ext.data.Record[]}385 *           records If action is "read", records will be null.386 * @param {Object}387 *           params An object containing properties which are to be used as parameters for the request to the remote388 *           server.389 * @param {Ext.data.DataReader}390 *           reader The {@link Ext.data.DataReader} object which converts the server response into a "readDataBlock"391 *           (the result from calling {@link Ext.data.DataReader#read}).392 * @param {Function}393 *           callback A function to be called after the request. The callback is passed the following arguments:394 *           <ul>395 *           <li>readDataBlock: Data object from calling {@link Ext.data.DataReader#read}.</li>396 *           <li>options: The options object (see below)</li>397 *           <li>success: Boolean success indicator.</li>398 *           </ul>399 * @param {Object}400 *           scope The scope in which to call the callback.401 * @param {Object}402 *           options An optional argument which is passed to the callback as its second parameter.403 */404Ext.ux.data.DataProxy.Request = function( action, records, params, reader, callback, scope, options ) {405   Ext.apply( this, {406      action : action,407      records : records,408      params : params,409      reader : reader,410      callback : callback,411      scope : scope,412      options : options413   } );
...

Using AI Code Generation

1var wptools = require('wptools');2var page = wptools.page('Barack_Obama');3page.readDataBlock(function(err, data) {4    if (err) {5        console.log(err);6    } else {7        console.log(data);8    }9});10var wptools = require('wptools');11var page = wptools.page('Barack_Obama');12page.readDataBlock(function(err, data) {13    if (err) {14        console.log(err);15    } else {16        console.log(data);17    }18});19var wptools = require('wptools');20var page = wptools.page('Barack_Obama');21page.readInfobox(function(err, data) {22    if (err) {23        console.log(err);24    } else {25        console.log(data);26    }27});28var wptools = require('wptools');29var page = wptools.page('Barack_Obama');30page.readInterwikiLinks(function(err, data) {31    if (err) {32        console.log(err);33    } else {34        console.log(data);35    }36});37var wptools = require('wptools');38var page = wptools.page('Barack_Obama');39page.readLinks(function(err, data) {40    if (err) {41        console.log(err);42    } else {43        console.log(data);44    }45});46var wptools = require('wptools');47var page = wptools.page('Barack_Obama');48page.readReferences(function(err, data) {49    if (err) {50        console.log(err);51    } else {52        console.log(data);53    }54});55var wptools = require('wptools');56var page = wptools.page('Barack_Obama');57page.readSections(function(err, data) {

Using AI Code Generation

1var wptree = require('./wptree');2var fs = require('fs');3var data = fs.readFileSync('datafile');4var tree = new wptree.WPTree(data);5var block = tree.readDataBlock(0);6console.log(block);

Using AI Code Generation

1var wpt = require('./wpt.js');2var fs = require('fs');3var wptFile = 'test.wpt';4var wptFileBuffer = fs.readFileSync(wptFile);5var wptFileObject = wpt.parseWPT(wptFileBuffer);6var dataBlock = wpt.readDataBlock(wptFileObject, 1);7console.log(dataBlock);

Using AI Code Generation

1const wptools = require('wptools');2const fs = require('fs');3const input = fs.createReadStream('test.txt');4let output = fs.createWriteStream('output.txt');5const wiki = wptools.page('Barack Obama');6wiki.get((err, data) => {7  if (err) throw err;8  const text = data.infobox.text;9  output.write(text);10  console.log(text);11});

Using AI Code Generation

1const wptools = require('wptools');2  console.log(data);3});4{5  "description": "India (/ˈɪndiə/ (About this soundlisten); Hindustani: Bhārat), officially the Republic of India (Bhārat Gaṇarājya),[15] is a country in South Asia. It is the seventh-largest country by area, the second-most populous country (with over 1.2 billion people), and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the northeast; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; in addition, India's Andaman and Nicobar Islands share a maritime border with Thailand and Indonesia.",6  "infobox": {7    "image_map": "India highlighted in Asia (orthographic projection).svg",8    "image_map1": "India highlighted in Asia (orthographic projection).svg",9    "image_map2": "India highlighted in Asia (orthographic projection).svg",10    "image_map3": "India highlighted in Asia (orthographic projection).svg",

Using AI Code Generation

1var wptools = require('wptools');2var title = "Barack Obama";3var page = wptools.page(title);4page.get(function(err, resp) {5  console.log(resp);6});

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