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breeze-client

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Breeze data management for JavaScript clients

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import * as breeze from 'breeze-client'; import { appendQueryStringParameter } from './adapter-core'; export class UriBuilderODataAdapter { name; constructor() { this.name = "odata"; } static register(config) { config = config || breeze.config; config.registerAdapter("uriBuilder", UriBuilderODataAdapter); return config.initializeAdapterInstance("uriBuilder", "odata", true); } initialize() { } buildUri(entityQuery, metadataStore) { // force entityType validation; let entityType = entityQuery._getFromEntityType(metadataStore, false); if (!entityType) { // anonymous type but still has naming convention info avail entityType = new breeze.EntityType(metadataStore); } let queryOptions = {}; queryOptions["$filter"] = toWhereODataFragment(entityQuery.wherePredicate); queryOptions["$orderby"] = toOrderByODataFragment(entityQuery.orderByClause); if (entityQuery.skipCount) { queryOptions["$skip"] = entityQuery.skipCount; } if (entityQuery.takeCount != null) { queryOptions["$top"] = entityQuery.takeCount; } queryOptions["$expand"] = toExpandODataFragment(entityQuery.expandClause); queryOptions["$select"] = toSelectODataFragment(entityQuery.selectClause); if (entityQuery.inlineCountEnabled) { queryOptions["$inlinecount"] = "allpages"; } const qoText = toQueryOptionsString(queryOptions); return appendQueryStringParameter(entityQuery.resourceName, qoText); // private methods to this func. function toWhereODataFragment(wherePredicate) { if (!wherePredicate) return undefined; // validation occurs inside of the toODataFragment call here. let frag = wherePredicate.visit({ entityType: entityType }, toODataFragmentVisitor); return (frag && frag.length > 0) ? frag : undefined; } function toOrderByODataFragment(orderByClause) { if (!orderByClause) return undefined; orderByClause.validate(entityType); let strings = orderByClause.items.map(function (item) { return entityType.clientPropertyPathToServer(item.propertyPath, "/") + (item.isDesc ? " desc" : ""); }); // should return something like CompanyName,Address/City desc return strings.join(','); } function toSelectODataFragment(selectClause) { if (!selectClause) return undefined; selectClause.validate(entityType); let frag = selectClause.propertyPaths.map(function (pp) { return entityType.clientPropertyPathToServer(pp, "/"); }).join(","); return frag; } function toExpandODataFragment(expandClause) { if (!expandClause) return undefined; // no validate on expand clauses currently. // expandClause.validate(entityType); let frag = expandClause.propertyPaths.map(function (pp) { return entityType.clientPropertyPathToServer(pp, "/"); }).join(","); return frag; } function toQueryOptionsString(queryOptions) { let qoStrings = []; for (let qoName in queryOptions) { let qoValue = queryOptions[qoName]; if (qoValue !== undefined) { if (qoValue instanceof Array) { qoValue.forEach(function (qov) { qoStrings.push(qoName + "=" + encodeURIComponent(qov)); }); } else { qoStrings.push(qoName + "=" + encodeURIComponent(qoValue)); } } } if (qoStrings.length > 0) { return qoStrings.join("&"); } else { return ""; } } } } breeze.Predicate.prototype.toODataFragment = function (context) { return this.visit(context, toODataFragmentVisitor); }; let toODataFragmentVisitor = { passthruPredicate: function () { return this.value; }, unaryPredicate: function (context) { let predVal = this.pred.visit(context); return odataOpFrom(this) + " " + "(" + predVal + ")"; }, binaryPredicate: function (context) { let expr1Val = this.expr1.visit(context); let expr2Val = this.expr2.visit(context); let prefix = context.prefix; if (prefix) { expr1Val = prefix + "/" + expr1Val; } let odataOp = odataOpFrom(this); if (this.op.key === 'in') { let result = expr2Val.map(function (v) { return "(" + expr1Val + " eq " + v + ")"; }).join(" or "); return result; } else if (this.op.isFunction) { if (odataOp === "substringof") { return odataOp + "(" + expr2Val + "," + expr1Val + ") eq true"; } else { return odataOp + "(" + expr1Val + "," + expr2Val + ") eq true"; } } else { return expr1Val + " " + odataOp + " " + expr2Val; } }, andOrPredicate: function (context) { let result = this.preds.map(function (pred) { let predVal = pred.visit(context); return "(" + predVal + ")"; }).join(" " + odataOpFrom(this) + " "); return result; }, anyAllPredicate: function (context) { let exprVal = this.expr.visit(context); if (!this.pred.op) { // added 21-Oct-2016 to fix breeze.js issue #172 return exprVal + "/" + odataOpFrom(this) + "()"; } let prefix = context.prefix; if (prefix) { exprVal = prefix + "/" + exprVal; prefix = "x" + (parseInt(prefix.substring(1)) + 1); } else { prefix = "x1"; } // need to create a new context because of 'prefix' let newContext = breeze.core.extend({}, context); newContext.entityType = this.expr.dataType; newContext.prefix = prefix; let newPredVal = this.pred.visit(newContext); return exprVal + "/" + odataOpFrom(this) + "(" + prefix + ": " + newPredVal + ")"; }, litExpr: function () { if (Array.isArray(this.value)) { return this.value.map(function (v) { return this.dataType.fmtOData(v); }, this); } else { return this.dataType.fmtOData(this.value); } }, propExpr: function (context) { let entityType = context.entityType; // '/' is the OData path delimiter return entityType ? entityType.clientPropertyPathToServer(this.propertyPath, "/") : this.propertyPath; }, fnExpr: function (context) { let exprVals = this.exprs.map(function (expr) { return expr.visit(context); }); return this.fnName + "(" + exprVals.join(",") + ")"; } }; let _operatorMap = { 'contains': 'substringof' }; function odataOpFrom(node) { let op = node.op.key; let odataOp = _operatorMap[op]; return odataOp || op; } breeze.config.registerAdapter("uriBuilder", UriBuilderODataAdapter); //# 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* as breeze from 'breeze-client';\r\nimport { appendQueryStringParameter } from './adapter-core';\r\n\r\nexport class UriBuilderODataAdapter implements breeze.UriBuilderAdapter {\r\n\r\n  name: string;\r\n\r\n  constructor() {\r\n    this.name = \"odata\";\r\n  }\r\n\r\n  static register(config?: breeze.BreezeConfig) {\r\n    config = config || breeze.config;\r\n    config.registerAdapter(\"uriBuilder\", UriBuilderODataAdapter);\r\n    return config.initializeAdapterInstance(\"uriBuilder\", \"odata\", true) as UriBuilderODataAdapter;\r\n  }\r\n\r\n  initialize() { }\r\n\r\n  buildUri(entityQuery: breeze.EntityQuery, metadataStore: breeze.MetadataStore) {\r\n    // force entityType validation;\r\n    let entityType = entityQuery._getFromEntityType(metadataStore, false);\r\n    if (!entityType) {\r\n      // anonymous type but still has naming convention info avail\r\n      entityType = new breeze.EntityType(metadataStore);\r\n    }\r\n\r\n    let queryOptions = {};\r\n    queryOptions[\"$filter\"] = toWhereODataFragment(entityQuery.wherePredicate);\r\n    queryOptions[\"$orderby\"] = toOrderByODataFragment(entityQuery.orderByClause!);\r\n\r\n    if (entityQuery.skipCount) {\r\n      queryOptions[\"$skip\"] = entityQuery.skipCount;\r\n    }\r\n\r\n    if (entityQuery.takeCount != null) {\r\n      queryOptions[\"$top\"] = entityQuery.takeCount;\r\n    }\r\n\r\n    queryOptions[\"$expand\"] = toExpandODataFragment(entityQuery.expandClause);\r\n    queryOptions[\"$select\"] = toSelectODataFragment(entityQuery.selectClause!);\r\n\r\n    if (entityQuery.inlineCountEnabled) {\r\n      queryOptions[\"$inlinecount\"] = \"allpages\";\r\n    }\r\n\r\n    const qoText = toQueryOptionsString(queryOptions as breeze.QueryOptions);\r\n\r\n    return appendQueryStringParameter(entityQuery.resourceName, qoText);\r\n\r\n    // private methods to this func.\r\n\r\n    function toWhereODataFragment(wherePredicate: breeze.Predicate) {\r\n      if (!wherePredicate) return undefined;\r\n      // validation occurs inside of the toODataFragment call here.\r\n      let frag = wherePredicate.visit({ entityType: entityType }, toODataFragmentVisitor);\r\n      return (frag && frag.length > 0) ? frag : undefined;\r\n    }\r\n\r\n    function toOrderByODataFragment(orderByClause: breeze.OrderByClause) {\r\n      if (!orderByClause) return undefined;\r\n      orderByClause.validate(entityType!);\r\n      let strings = orderByClause.items.map(function (item) {\r\n        return entityType!.clientPropertyPathToServer(item.propertyPath, \"/\") + (item.isDesc ? \" desc\" : \"\");\r\n      });\r\n      // should return something like CompanyName,Address/City desc\r\n      return strings.join(',');\r\n    }\r\n\r\n    function toSelectODataFragment(selectClause?: breeze.SelectClause) {\r\n      if (!selectClause) return undefined;\r\n      selectClause.validate(entityType!);\r\n      let frag = selectClause.propertyPaths.map(function (pp) {\r\n        return entityType!.clientPropertyPathToServer(pp, \"/\");\r\n      }).join(\",\");\r\n      return frag;\r\n    }\r\n\r\n    function toExpandODataFragment(expandClause?: breeze.ExpandClause) {\r\n      if (!expandClause) return undefined;\r\n      // no validate on expand clauses currently.\r\n      // expandClause.validate(entityType);\r\n      let frag = expandClause.propertyPaths.map(function (pp) {\r\n        return entityType!.clientPropertyPathToServer(pp, \"/\");\r\n      }).join(\",\");\r\n      return frag;\r\n    }\r\n\r\n    function toQueryOptionsString(queryOptions: breeze.QueryOptions) {\r\n      let qoStrings: string[] = [];\r\n      for (let qoName in queryOptions) {\r\n        let qoValue = queryOptions[qoName];\r\n        if (qoValue !== undefined) {\r\n          if (qoValue instanceof Array) {\r\n            qoValue.forEach(function (qov) {\r\n              qoStrings.push(qoName + \"=\" + encodeURIComponent(qov));\r\n            });\r\n          } else {\r\n            qoStrings.push(qoName + \"=\" + encodeURIComponent(qoValue));\r\n          }\r\n        }\r\n      }\r\n\r\n      if (qoStrings.length > 0) {\r\n        return qoStrings.join(\"&\");\r\n      } else {\r\n        return \"\";\r\n      }\r\n    }\r\n  }\r\n\r\n\r\n}\r\n\r\n(breeze.Predicate.prototype as any).toODataFragment = function (context: breeze.VisitContext) {\r\n  return this.visit(context, toODataFragmentVisitor);\r\n};\r\n\r\nlet toODataFragmentVisitor = {\r\n\r\n  passthruPredicate: function () {\r\n    return this.value;\r\n  },\r\n\r\n  unaryPredicate: function (this: breeze.UnaryPredicate, context: breeze.VisitContext) {\r\n    let predVal = this.pred.visit(context);\r\n    return odataOpFrom(this) + \" \" + \"(\" + predVal + \")\";\r\n  },\r\n\r\n  binaryPredicate: function (this: breeze.BinaryPredicate, context: breeze.VisitContext) {\r\n    let expr1Val = this.expr1!.visit(context);\r\n    let expr2Val = this.expr2!.visit(context);\r\n    let prefix = (context as any).prefix;\r\n    if (prefix) {\r\n      expr1Val = prefix + \"/\" + expr1Val;\r\n    }\r\n\r\n    let odataOp = odataOpFrom(this);\r\n\r\n    if (this.op.key === 'in') {\r\n      let result = expr2Val.map(function (v: any) {\r\n        return \"(\" + expr1Val + \" eq \" + v + \")\";\r\n      }).join(\" or \");\r\n      return result;\r\n    } else if (this.op.isFunction) {\r\n      if (odataOp === \"substringof\") {\r\n        return odataOp + \"(\" + expr2Val + \",\" + expr1Val + \") eq true\";\r\n      } else {\r\n        return odataOp + \"(\" + expr1Val + \",\" + expr2Val + \") eq true\";\r\n      }\r\n    } else {\r\n      return expr1Val + \" \" + odataOp + \" \" + expr2Val;\r\n    }\r\n  },\r\n\r\n  andOrPredicate: function (this: breeze.AndOrPredicate, context: breeze.VisitContext) {\r\n    let result = this.preds.map(function (pred) {\r\n      let predVal = pred.visit(context);\r\n      return \"(\" + predVal + \")\";\r\n    }).join(\" \" + odataOpFrom(this) + \" \");\r\n    return result;\r\n  },\r\n\r\n  anyAllPredicate: function (this: breeze.AnyAllPredicate, context: breeze.VisitContext) {\r\n    let exprVal = this.expr.visit(context);\r\n    if (!this.pred.op) { // added 21-Oct-2016 to fix breeze.js issue #172\r\n      return exprVal + \"/\" + odataOpFrom(this) + \"()\";\r\n    }\r\n    let prefix = (context as any).prefix;\r\n    if (prefix) {\r\n      exprVal = prefix + \"/\" + exprVal;\r\n      prefix = \"x\" + (parseInt(prefix.substring(1)) + 1);\r\n    } else {\r\n      prefix = \"x1\";\r\n    }\r\n    // need to create a new context because of 'prefix'\r\n    let newContext = breeze.core.extend({}, context) as any;\r\n    newContext.entityType = this.expr.dataType;\r\n    newContext.prefix = prefix;\r\n    let newPredVal = this.pred.visit(newContext);\r\n    return exprVal + \"/\" + odataOpFrom(this) + \"(\" + prefix + \": \" + newPredVal + \")\";\r\n  },\r\n\r\n  litExpr: function () {\r\n    if (Array.isArray(this.value)) {\r\n      return this.value.map(function (v: any) { return this.dataType.fmtOData(v); }, this);\r\n    } else {\r\n      return this.dataType.fmtOData(this.value);\r\n    }\r\n  },\r\n\r\n  propExpr: function (this: breeze.PropExpr, context: breeze.ExpressionContext) {\r\n    let entityType = context.entityType;\r\n    // '/' is the OData path delimiter\r\n    return entityType ? entityType.clientPropertyPathToServer(this.propertyPath, \"/\") : this.propertyPath;\r\n  },\r\n\r\n  fnExpr: function (this: breeze.FnExpr, context: breeze.ExpressionContext) {\r\n    let exprVals = this.exprs.map(function (expr) {\r\n      return expr.visit(context);\r\n    });\r\n    return this.fnName + \"(\" + exprVals.join(\",\") + \")\";\r\n  }\r\n};\r\n\r\nlet _operatorMap = {\r\n  'contains': 'substringof'\r\n};\r\n\r\nfunction odataOpFrom(node: any) {\r\n  let op = node.op.key;\r\n  let odataOp = _operatorMap[op];\r\n  return odataOp || op;\r\n}\r\n\r\nbreeze.config.registerAdapter(\"uriBuilder\", UriBuilderODataAdapter);\r\n\r\n\r\n\r\n"]}