1 | var validations = require('./index')
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2 |
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3 | exports.types = {
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4 | Select: {
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5 | type: 'String',
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6 | enum: ['SPECIFIC_ATTRIBUTES', 'COUNT', 'ALL_ATTRIBUTES', 'ALL_PROJECTED_ATTRIBUTES'],
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7 | },
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8 | IndexName: {
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9 | type: 'String',
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10 | regex: '[a-zA-Z0-9_.-]+',
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11 | lengthGreaterThanOrEqual: 3,
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12 | lengthLessThanOrEqual: 255,
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13 | },
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14 | ReturnConsumedCapacity: {
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15 | type: 'String',
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16 | enum: ['INDEXES', 'TOTAL', 'NONE'],
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17 | },
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18 | QueryFilter: {
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19 | type: 'Map<Condition>',
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20 | children: {
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21 | type: 'ValueStruct<Condition>',
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22 | children: {
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23 | AttributeValueList: {
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24 | type: 'List',
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25 | children: 'AttrStruct<ValueStruct>',
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26 | },
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27 | ComparisonOperator: {
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28 | type: 'String',
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29 | notNull: true,
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30 | enum: ['IN', 'NULL', 'BETWEEN', 'LT', 'NOT_CONTAINS', 'EQ', 'GT', 'NOT_NULL', 'NE', 'LE', 'BEGINS_WITH', 'GE', 'CONTAINS'],
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31 | },
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32 | },
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33 | },
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34 | },
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35 | TableName: {
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36 | type: 'String',
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37 | notNull: true,
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38 | regex: '[a-zA-Z0-9_.-]+',
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39 | lengthGreaterThanOrEqual: 3,
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40 | lengthLessThanOrEqual: 255,
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41 | },
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42 | ConditionalOperator: {
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43 | type: 'String',
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44 | enum: ['OR', 'AND'],
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45 | },
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46 | AttributesToGet: {
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47 | type: 'List',
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48 | lengthGreaterThanOrEqual: 1,
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49 | lengthLessThanOrEqual: 255,
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50 | children: 'String',
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51 | },
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52 | Limit: {
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53 | type: 'Integer',
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54 | greaterThanOrEqual: 1,
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55 | },
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56 | KeyConditions: {
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57 | type: 'Map<Condition>',
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58 | children: {
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59 | type: 'ValueStruct<Condition>',
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60 | children: {
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61 | ComparisonOperator: {
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62 | type: 'String',
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63 | notNull: true,
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64 | enum: ['IN', 'NULL', 'BETWEEN', 'LT', 'NOT_CONTAINS', 'EQ', 'GT', 'NOT_NULL', 'NE', 'LE', 'BEGINS_WITH', 'GE', 'CONTAINS'],
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65 | },
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66 | AttributeValueList: {
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67 | type: 'List',
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68 | children: 'AttrStruct<ValueStruct>',
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69 | },
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70 | },
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71 | },
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72 | },
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73 | ExclusiveStartKey: {
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74 | type: 'Map<AttributeValue>',
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75 | children: 'AttrStruct<ValueStruct>',
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76 | },
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77 | ConsistentRead: 'Boolean',
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78 | ScanIndexForward: 'Boolean',
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79 | KeyConditionExpression: {
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80 | type: 'String',
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81 | },
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82 | FilterExpression: {
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83 | type: 'String',
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84 | },
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85 | ProjectionExpression: {
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86 | type: 'String',
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87 | },
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88 | ExpressionAttributeValues: {
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89 | type: 'Map<AttributeValue>',
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90 | children: 'AttrStruct<ValueStruct>',
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91 | },
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92 | ExpressionAttributeNames: {
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93 | type: 'Map<java.lang.String>',
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94 | children: 'String',
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95 | },
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96 | }
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97 |
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98 | exports.custom = function(data) {
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99 |
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100 | var msg = validations.validateExpressionParams(data,
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101 | ['ProjectionExpression', 'FilterExpression', 'KeyConditionExpression'],
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102 | ['AttributesToGet', 'QueryFilter', 'ConditionalOperator', 'KeyConditions'])
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103 | if (msg) return msg
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104 |
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105 | var key
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106 | msg = validations.validateConditions(data.QueryFilter)
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107 | if (msg) return msg
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108 |
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109 | if (data.AttributesToGet) {
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110 | msg = validations.findDuplicate(data.AttributesToGet)
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111 | if (msg) return 'One or more parameter values were invalid: Duplicate value in attribute name: ' + msg
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112 | }
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113 |
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114 | for (key in data.ExclusiveStartKey) {
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115 | msg = validations.validateAttributeValue(data.ExclusiveStartKey[key])
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116 | if (msg) return 'The provided starting key is invalid: ' + msg
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117 | }
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118 |
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119 | if (data.KeyConditions == null && data.KeyConditionExpression == null) {
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120 | return 'Either the KeyConditions or KeyConditionExpression parameter must be specified in the request.'
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121 | }
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122 |
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123 | msg = validations.validateExpressions(data)
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124 | if (msg) return msg
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125 |
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126 | if (data._keyCondition != null) {
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127 | data.KeyConditions = validations.convertKeyCondition(data._keyCondition.expression)
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128 | if (typeof data.KeyConditions == 'string') {
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129 | return data.KeyConditions
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130 | }
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131 | }
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132 |
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133 | msg = validations.validateConditions(data.KeyConditions)
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134 | if (msg) return msg
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135 |
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136 | var numConditions = Object.keys(data.KeyConditions || {}).length
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137 | if (numConditions != 1 && numConditions != 2) {
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138 | return 'Conditions can be of length 1 or 2 only'
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139 | }
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140 | }
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