Mercurial > hg > ng2-query-ismi

annotate src/app/query-state.ts @ 55:308c96f734c8 ng2-table

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first steps to importing state from URL.
author casties
date Mon, 27 Mar 2017 14:17:55 +0200
parents b65a031c4967
children d7c947909ab8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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6cd6c09032aa object type query with results!
Robert Casties <casties@mpiwg-berlin.mpg.de>
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1 import {QueryStep} from './query-step';
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2 import {ResultType} from './result-type';
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3 import {QueryMode, getQueryModeById} from './query-mode';
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5 export class QueryState {
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6 public steps: QueryStep[] = [];
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8 public resultCypherQuery: string;
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9 public attributesCypherQuery: string;
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10 public outRelsCypherQuery: string;
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11 public inRelsCypherQuery: string;
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12 public cypherQueryParams: any;
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13
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14 public results: any[];
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15 public numResults: number;
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16 public resultTypes: string;
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17 public resultType: ResultType;
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18 public resultInfo: string;
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19 public resultAttributes: string[];
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20 public resultRelations: any[];
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21 public resultColumns: any[];
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23
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24 setStateFromString(newStateString: string) {
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25 try {
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26 // state string is json
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27 let newState = JSON.parse(newStateString);
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28 // state should be list of steps
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29 if (!Array.isArray(newState)) return;
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30 let newSteps: QueryStep[] = [];
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31 newState.forEach((elem) => {
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32 // step is an array [mode, params]
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33 if (!Array.isArray(elem)) return;
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34 let mode = elem[0];
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35 let qm: QueryMode = getQueryModeById(mode);
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36 let params = elem[1];
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37 if (qm != null && params != null) {
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38 let qs = new QueryStep(qm, params);
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39 newSteps.push(qs);
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40 }
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41 });
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42 if (newSteps.length > 0) {
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43 // set state
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44 this.steps = newSteps;
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45 }
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46 } catch (e) {
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47 console.error("Unable to set state from string: "+newStateString);
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48 }
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49 }
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50
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51 getNumSteps() {
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52 return this.steps.length;
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53 }
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54
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55 /**
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56 * Returns the cypher query as text for display.
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57 */
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58 getQueryText() {
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59 let text = this.resultCypherQuery;
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60 let hasParams = false;
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61 for (let k in this.cypherQueryParams) {
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62 if (!hasParams) {
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63 hasParams = true;
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64 text += '\n';
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65 }
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66 text += `[${k}='${this.cypherQueryParams[k]}'] `;
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67 }
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68 return text;
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69 }
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70 }