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i=this._getCurrentRangeSpan();r||(r=t,t=0),o(r)||(r=[r]);var n=[],a=this.options.autoSync;this.options.autoSync=!1;try{for(var s=0;s<r.length;s++){var u=r[s],l=this.insert(t,u);n.push(l);var d=l.toJSON();this._isServerGrouped()&&(d=this._wrapInEmptyGroup(d)),this._pristineData.push(d),i&&i.length&&e(i).last()[0].pristineData.push(d),t++}}finally{this.options.autoSync=a}n.length&&this.trigger("push",{type:"create",items:n})},pushCreate:function(e){this.pushInsert(this._data.length,e)},pushUpdate:function(e){o(e)||(e=[e]);for(var t=[],r=0;r<e.length;r++){var i=e[r],n=this._createNewModel(i),a=this.get(n.id);a?(t.push(a),a.accept(i),a.trigger(k),this._updatePristineForModel(a,i)):this.pushCreate(i)}t.length&&this.trigger("push",{type:"update",items:t})},pushDestroy:function(e){var t=this._removeItems(e);t.length&&this.trigger("push",{type:"destroy",items:t})},_removeItems:function(e,t){o(e)||(e=[e]);var r=void 0===t||t,i=[],n=this.options.autoSync;this.options.autoSync=!1;try{for(var a=0;a<e.length;a++){var s=e[a],u=this._createNewModel(s),l=!1,d=a;this._eachItem(this._data,(function(t){d!==e.length-1?(t.omitChangeEvent=!0,t.omitCache=t.omitCache||[]):t.omitChangeEvent=!1;for(var r=0;r<t.length;r++){var n=t.at(r);if(n.id===u.id){t.omitChangeEvent&&t.omitCache.push(n),i.push(n),t.splice(r,1),l=!0;break}}})),l&&r&&(this._removePristineForModel(u),this._destroyed.pop())}}finally{this.options.autoSync=n}return i},pushMove:function(e,t){var r=this._moveItems(e,t);r.length&&this.trigger("push",{type:"update",items:r})},_moveItems:function(e,t){o(t)||(t=[t]);var r=[],i=this.options.autoSync;this.options.autoSync=!1;try{for(var n=0;n<t.length;n++){var a=t[n];this._eachItem(this._data,(function(t){for(var i=0;i<t.length;i++){var n=t.at(i);if(n.uid===a.uid){r.push(n),t.splice(e>=i?--e:e,0,t.splice(i,1)[0]),e++;break}}}))}}finally{this.options.autoSync=i}return r},remove:function(e){var t,r=this,i=r._isServerGrouped();return!i||!e.uid||e.isNew&&e.isNew()||r._pushInDestroyed(e),this._eachItem(r._data,(function(r){if(t=function(e,t){if(e){var r,i,n=e.length;for(i=0;i<n;i++)if((r=e[i]).uid&&r.uid==t.uid)return e.splice(i,1),r}}(r,e),t&&i)return!0})),this._removeModelFromRanges(e),e},destroyed:function(){return this._destroyed},created:function(){var e,t,r=[],i=this._flatData(this._data,this.options.useRanges);for(e=0,t=i.length;e<t;e++)i[e].isNew&&i[e].isNew()&&!i[e].notFetched&&r.push(i[e]);return r},updated:function(){var e,t,r=[],i=this._flatData(this._data,this.options.useRanges);for(e=0,t=i.length;e<t;e++)i[e].isNew&&!i[e].isNew()&&i[e].dirty&&r.push(i[e]);return r},sync:function(){var t,r=this,i=[],n=[];r._destroyed=r._destroyed.filter((e=>!e.hasOwnProperty("_isMoved"))),t=r._destroyed;var a=e.Deferred().resolve().promise();if(r.online()){if(!r.reader.model)return a;i=r.created(),n=r.updated();var s=[];r.options.batch&&r.transport.submit?s=r._sendSubmit(i,n,t):(s.push.apply(s,r._send("create",i)),s.push.apply(s,r._send("update",n)),s.push.apply(s,r._send("destroy",t))),a=e.when.apply(null,s).then((function(){var e,t,i=[];for(e=0,t=arguments.length;e<t;e++)arguments[e]&&(r._accept(arguments[e]),i.push(...arguments[e].models));r._storeData(!0),r._syncEnd(),r._change({action:"sync",changedItems:i}),r.trigger(w),r._isServerGroupPaged()&&r.read(),r.data().map((function(e){return e.hasOwnProperty("_isMoved")&&delete e._isMoved,e}))}))}else r._storeData(!0),r._syncEnd(),r._change({action:"sync"});return a},_syncEnd:g,cancelChanges:function(e){var t=this;e instanceof h.data.Model?t._cancelModel(e):(t._destroyed=[],t._detachObservableParents(),t._data=t._observe(t._pristineData),t.options.serverPaging&&(t._total=t._pristineTotal),t._ranges=[],t._addRange(t._data,0),t._changesCanceled(),t._change(),t._markOfflineUpdatesAsDirty(),t._isServerGrouped()&&t.read())},_changesCanceled:g,_markOfflineUpdatesAsDirty:function(){var e=this;null!=e.options.offlineStorage&&e._eachItem(e._data,(function(e){for(var t=0;t<e.length;t++){var r=e.at(t);"update"!=r.__state__&&"create"!=r.__state__||(r.dirty=!0)}}))},hasChanges:function(){var e,t,r=this._flatData(this._data,this.options.useRanges);if(this._destroyed.length)return!0;for(e=0,t=r.length;e<t;e++)if(r[e].isNew&&r[e].isNew()||r[e].dirty)return!0;return!1},_accept:function(t){var r,i=this,n=t.models,a=t.response,u=0,l=i._isServerGrouped(),d=i._pristineData,g=t.type;if(i.trigger(R,{response:a,type:g}),a&&!s(a)){if(a=i.reader.parse(a),i._handleCustomErrors(a))return;a=i.reader.data(a),o(a)||(a=[a])}else a=e.map(n,(function(e){return e.toJSON()}));for("destroy"===g&&(i._destroyed=[]),u=0,r=n.length;u<r;u++)"destroy"!==g?(n[u].accept(a[u]),"create"===g?d.push(l?i._wrapInEmptyGroup(n[u].toJSON()):a[u]):"update"===g&&i._updatePristineForModel(n[u],a[u])):i._removePristineForModel(n[u])},_updatePristineForModel:function(e,t){this._executeOnPristineForModel(e,(function(e,r){h.deepExtend(r[e],t)}))},_executeOnPristineForModel:function(e,t){this._eachPristineItem((function(r){var i=Le(r,e);if(i>-1)return t(i,r),!0}))},_removePristineForModel:function(e){this._executeOnPristineForModel(e,(function(e,t){t.splice(e,1)}))},_readData:function(e){return(this._isServerGrouped()?this.reader.groups:this.reader.data).call(this.reader,e)},_eachPristineItem:function(e){var t=this,r=t.options,i=t._getCurrentRangeSpan();t._eachItem(t._pristineData,e),r.serverPaging&&r.useRanges&&d(i,(function(r,i){t._eachItem(i.pristineData,e)}))},_eachItem:function(e,t){e&&e.length&&(this._isServerGrouped()?Ae(e,t):t(e))},_pristineForModel:function(e){var t,r;return this._eachPristineItem((function(i){if((r=Le(i,e))>-1)return t=i[r],!0})),t},_cancelModel:function(e){var t=this,r=this._pristineForModel(e);this._eachItem(this._data,(function(i){var n=Be(i,e);n>=0&&(!r||e.isNew()&&!r.__state__?(t._modelCanceled(e),i.splice(n,1),t._removeModelFromRanges(e)):(i[n].accept(r),"update"==r.__state__&&(i[n].dirty=!0)))}))},_modelCanceled:g,_submit:function(t,r){var n=this;n.trigger(F,{type:"submit"}),n.trigger(O),n.transport.submit(i({success:function(r,i){var n=e.grep(t,(function(e){return e.type==i}))[0];n&&n.resolve({response:r,models:n.models,type:i})},error:function(e,r,i){for(var a=0;a<t.length;a++)t[a].reject(e);n.error(e,r,i)}},r))},_sendSubmit:function(t,r,i){var n=this,a=[];return n.options.batch&&(t.length&&a.push(e.Deferred((function(e){e.type="create",e.models=t}))),r.length&&a.push(e.Deferred((function(e){e.type="update",e.models=r}))),i.length&&a.push(e.Deferred((function(e){e.type="destroy",e.models=i}))),n._submit(a,{data:{created:n.reader.serialize(be(t)),updated:n.reader.serialize(be(r)),destroyed:n.reader.serialize(be(i))}})),a},_promise:function(t,r,n){var a=this;return e.Deferred((function(e){a.trigger(F,{type:n}),a.trigger(O),a.transport[n].call(a.transport,i({success:function(t){e.resolve({response:t,models:r,type:n})},error:function(t,r,i){e.reject(t),a.error(t,r,i)}},t))})).promise()},_send:function(e,t){var r,i,n=this,a=[],s=n.reader.serialize(be(t));if(n.options.batch)t.length&&a.push(n._promise({data:{models:s}},t,e));else for(r=0,i=t.length;r<i;r++)a.push(n._promise({data:s[r]},[t[r]],e));return a},read:function(t){var r=this,i=r._params(t),n=e.Deferred();return r._queueRequest(i,(function(){var e=r.trigger(F,{type:"read"});e?(r._dequeueRequest(),n.resolve(e)):(r.trigger(O),r._ranges=[],r.trigger("reset"),r.online()?r.transport.read({data:i,success:function(e){r._ranges=[],r.success(e,i),n.resolve()},error:function(){var e=L.call(arguments);r.error.apply(r,e),n.reject.apply(n,e)}}):null!=r.options.offlineStorage&&(r.success(r.offlineData(),i),n.resolve()))})),n.promise()},_readAggregates:function(e){return this.reader.aggregates(e)},success:function(e){var t,r,i=this,n=i.options;if(i.trigger(R,{response:e,type:"read"}),i.online()){if(e=i.reader.parse(e),i._handleCustomErrors(e))return void i._dequeueRequest();i._total=i.reader.total(e),i._isServerGroupPaged()&&(i._serverGroupsTotal=i._total),i._pageSize>i._total&&(i._pageSize=i._total,i.options.pageSize&&i.options.pageSize>i._pageSize&&(i._pageSize=i.options.pageSize)),i._aggregate&&n.serverAggregates&&(i._aggregateResult=i._readAggregates(e)),e=i._readData(e),i._destroyed=[]}else{e=i._readData(e),t=[];var a,s={},o=i.reader.model,u=o?o.idField:"id";for(a=0;a<this._destroyed.length;a++){var l=this._destroyed[a][u];s[l]=l}for(a=0;a<e.length;a++){var d=e[a];"destroy"==d.__state__?s[d[u]]||this._pushInDestroyed(this._createNewModel(d)):t.push(d)}e=t,i._total=e.length}if(i._pristineTotal=i._total,r=i._skip&&i._data.length&&i._skip<i._data.length,i.options.endless){r&&i._pristineData.splice(i._skip,i._pristineData.length),t=e.slice(0);for(var g=0;g<t.length;g++)i._pristineData.push(t[g])}else i._pristineData=e.slice(0);if(i._detachObservableParents(),i.options.endless){i._data.unbind(k,i._changeHandler),i._isServerGrouped()&&i._data[i._data.length-1].value===e[0].value&&(De(i._data[i._data.length-1],e[0]),e.shift()),e=i._observe(e),r&&i._data.splice(i._skip,i._data.length);for(var h=0;h<e.length;h++)i._data.push(e[h]);i._data.bind(k,i._changeHandler)}else i._data=i._observe(e);i._markOfflineUpdatesAsDirty(),i._storeData(),i._addRange(i._data),i._process(i._data),i._dequeueRequest()},_detachObservableParents:function(){if(this._data&&this._shouldDetachObservableParents)for(var e=0;e<this._data.length;e++)this._data[e].parent&&(this._data[e].parent=g)},_storeData:function(e){var t=this._isServerGrouped(),r=this.reader.model;if(null!=this.options.offlineStorage){for(var i=function e(i){for(var n=[],a=0;a<i.length;a++){var s=i.at(a),o=s.toJSON();t&&s.items?o.items=e(s.items):(o.uid=s.uid,r&&(s.isNew()?o.__state__="create":s.dirty&&(o.__state__="update"))),n.push(o)}return n}(this._data),n=[],a=0;a<this._destroyed.length;a++){var s=this._destroyed[a].toJSON();s.__state__="destroy",n.push(s)}this.offlineData(i.concat(n)),e&&(this._pristineData=this.reader.reader?this.reader.reader._wrapDataAccessBase(i):this.reader._wrapDataAccessBase(i))}},_addRange:function(e,t){var r,i=this,n=void 0!==t?t:i._skip||0,a={data:e,pristineData:e.toJSON(),timestamp:i._timeStamp()};this._isGroupPaged()?(r=n+e.length,a.outerStart=n,a.outerEnd=r):r=n+i._flatData(e,!0).length,a.start=n,a.end=r,i._ranges.push(a),i._sortRanges(),i._isGroupPaged()&&(i._groupsFlat||(i._groupsFlat=[]),i._appendToGroupsFlat(a.data),i._updateOuterRangesLength())},_appendToGroupsFlat:function(e){for(var t=e.length,r=0;r<t;r++)this._groupsFlat.push(e[r])},_getGroupByUid:function(e){for(var t,r=this._groupsFlat.length,i=0;i<r;i++)if((t=this._groupsFlat[i]).uid===e)return t},_sortRanges:function(){this._ranges.sort((function(e,t){return e.start-t.start}))},error:function(e,t,r){this._dequeueRequest(),this.trigger(R,{}),this.trigger(x,{xhr:e,status:t,errorThrown:r})},_params:function(e){var t=this,r=i({take:t.take(),skip:t.skip(),page:t.page(),pageSize:t.pageSize(),sort:t._sort,filter:t._filter,group:t._group,aggregate:t._aggregate,groupPaging:!!t._groupPaging,isExcelExportRequest:t.options.isExcelExportRequest},e);return t.options.serverPaging||(delete r.take,delete r.skip,delete r.page,delete r.pageSize),t.options.serverGrouping?t.reader.model&&r.group&&(r.group=Ve(r.group,t.reader.model)):delete r.group,t.options.serverFiltering?t.reader.model&&r.filter&&(r.filter=Je(r.filter,t.reader.model)):delete r.filter,t.options.serverSorting?t.reader.model&&r.sort&&(r.sort=Ve(r.sort,t.reader.model)):delete r.sort,t.options.serverAggregates?t.reader.model&&r.aggregate&&(r.aggregate=Ve(r.aggregate,t.reader.model)):delete r.aggregate,t.options.groupPaging&&t.options.serverPaging&&t.options.serverGrouping||delete r.groupPaging,t.options.isExcelExportRequest||delete r.isExcelExportRequest,r},_queueRequest:function(e,r){var i=this;i._requestInProgress?i._pending={callback:r.bind(i),options:e}:(i._requestInProgress=!0,i._pending=t,r())},_dequeueRequest:function(){var e=this;e._requestInProgress=!1,e._pending&&e._queueRequest(e._pending.options,e._pending.callback)},_handleCustomErrors:function(e){if(this.reader.errors){var t=this.reader.errors(e);if(t)return this.trigger(x,{xhr:null,status:"customerror",errorThrown:"custom error",errors:t}),!0}return!1},_shouldWrap:function(e){var t=this.reader.model;return!(!t||!e.length)&&!(e[0]instanceof t)},_observe:function(e){var t=this,r=t.reader.model;(t._shouldDetachObservableParents=!0,e instanceof W)?(t._shouldDetachObservableParents=!1,t._shouldWrap(e)&&(e.type=t.reader.model,e.wrapAll(e,e))):(e=new(t.pageSize()&&!t.options.serverPaging?Q:W)(e,t.reader.model)).parent=function(){return t.parent()};return t._isServerGrouped()&&Ee(e,r),!(t._changeHandler&&t._data&&t._data instanceof W)||t.options.useRanges&&t.options.serverPaging?t._changeHandler=t._change.bind(t):t._data.unbind(k,t._changeHandler),e.bind(k,t._changeHandler)},_updateTotalForAction:function(e,t){var r=this,i=parseInt(r._total,10);ye(r._total)||(i=parseInt(r._pristineTotal,10)),"add"===e?i+=t.length:"remove"===e?i-=t.length:"itemchange"===e||"sync"===e||r.options.serverPaging?"sync"===e&&(i=r._pristineTotal=parseInt(r._total,10)):i=r._pristineTotal,r._total=i},_operationsForUpdatedFields:function(){const e=this,t=e._updatedFields||[],r={};let i,n=!1;return r.sort=e._sort,r.filter=e._filter,r.group=e._group,r.aggregate=e._aggregate,i=I(r),n=t.some((e=>i.indexOf(`"field":"${e}"`)>-1)),!n},_pushInDestroyed:function(e){this._destroyed.find((function(t){return t.uid===e.uid}))||this._destroyed.push(e)},_change:function(e){let t,r,i,n=this,a=e?e.action:"";if("remove"===a)for(t=0,i=e.items.length;t<i;t++)e.items[t].isNew&&e.items[t].isNew()||n._pushInDestroyed(e.items[t]);if(e&&(r=e.items||[],e.partialUpdate=n._operationsForUpdatedFields()&&!n._preventPartialUpdate,"itemchange"===e.action&&r.some((e=>e.dirtyFields)))){let t=e.items[0],r=Object.keys(t.dirtyFields),i=r;for(const e of r)if(t[e]instanceof Object){let r=h.stringify(t[e]);if(r){let t=JSON.parse(r),n=Object.keys(t).map((t=>e+"."+t));i.push(...n)}}n._updatedFields=i}if(!n.options.autoSync||"add"!==a&&"remove"!==a&&"itemchange"!==a)n._updateTotalForAction(a,e?e.items:[]),n._process(n._data,e);else{"add"===a&&(n._preventPartialUpdate=!0);var s=function(t){"sync"===t.action&&(n._preventPartialUpdate=!1,n.unbind("change",s),n._updateTotalForAction(a,e.items))};n.first("change",s),n.sync()}},_calculateAggregates:function(e,t){t=t||{};var r=new ae(e),i=t.aggregate,n=t.filter;return n&&(r=r.filter(n)),r.aggregate(i)},_process:function(e,r){var 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