prosody
898554323338
util/datamapper.lua

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util/datamapper.lua @ 12314:898554323338

util.poll: Restructure to make adding additional system APIs easier
author Kim Alvefur <zash@zash.se>
date Wed, 23 Feb 2022 20:30:22 +0100
parent 12133:11060c8919b6
child 12580:a9dbf657c894
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 local st = require("util.stanza");
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2 local pointer = require("util.jsonpointer");
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3
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4 local schema_t = {}
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5
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6 local function toboolean(s)
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7 if s == "true" or s == "1" then
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8 return true
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9 elseif s == "false" or s == "0" then
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10 return false
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11 elseif s then
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12 return true
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13 end
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14 end
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15
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16 local function totype(t, s)
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17 if not s then
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18 return nil
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19 end
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20 if t == "string" then
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21 return s
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22 elseif t == "boolean" then
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23 return toboolean(s)
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24 elseif t == "number" or t == "integer" then
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25 return tonumber(s)
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26 end
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27 end
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28
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29 local value_goes = {}
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30
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31 local function resolve_schema(schema, root)
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32 if type(schema) == "table" and schema["$ref"] and schema["$ref"]:sub(1, 1) == "#" then
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33 local referenced = pointer.resolve(root, schema["$ref"]:sub(2));
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34 if referenced ~= nil then
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35 return referenced
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36 end
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37 end
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38 return schema
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39 end
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40
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41 local function unpack_propschema(propschema, propname, current_ns)
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42
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43 local proptype = "string"
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44 local value_where = propname and "in_text_tag" or "in_text"
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45 local name = propname
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46 local namespace
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47 local prefix
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48 local single_attribute
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49 local enums
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50
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51 if type(propschema) == "table" then
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52 proptype = propschema.type
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53 elseif type(propschema) == "string" then
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54 proptype = propschema
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55 end
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56
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57 if proptype == "object" or proptype == "array" then
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58 value_where = "in_children"
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59 end
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60
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61 if type(propschema) == "table" then
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62 local xml = propschema.xml
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63 if xml then
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64 if xml.name then
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65 name = xml.name
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66 end
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67 if xml.namespace and xml.namespace ~= current_ns then
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68 namespace = xml.namespace
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69 end
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70 if xml.prefix then
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71 prefix = xml.prefix
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72 end
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73 if proptype == "array" and xml.wrapped then
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74 value_where = "in_wrapper"
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75 elseif xml.attribute then
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76 value_where = "in_attribute"
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77 elseif xml.text then
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78 value_where = "in_text"
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79 elseif xml.x_name_is_value then
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80 value_where = "in_tag_name"
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81 elseif xml.x_single_attribute then
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82 single_attribute = xml.x_single_attribute
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83 value_where = "in_single_attribute"
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84 end
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85 end
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86 if propschema["const"] then
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87 enums = {propschema["const"]}
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88 elseif propschema["enum"] then
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89 enums = propschema["enum"]
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90 end
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91 end
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92
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93 return proptype, value_where, name, namespace, prefix, single_attribute, enums
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94 end
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95
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96 local parse_object
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97 local parse_array
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98
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99 local function extract_value(s, value_where, proptype, name, namespace, prefix, single_attribute, enums)
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100 if value_where == "in_tag_name" then
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101 local c
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102 if proptype == "boolean" then
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103 c = s:get_child(name, namespace);
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104 elseif enums and proptype == "string" then
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105
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106 for i = 1, #enums do
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107 c = s:get_child(enums[i], namespace);
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108 if c then
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109 break
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110 end
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111 end
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112 else
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113 c = s:get_child(nil, namespace);
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114 end
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115 if c then
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116 return c.name
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117 end
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118 elseif value_where == "in_attribute" then
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119 local attr = name
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120 if prefix then
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121 attr = prefix .. ":" .. name
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122 elseif namespace and namespace ~= s.attr.xmlns then
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123 attr = namespace .. "\1" .. name
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124 end
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125 return s.attr[attr]
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126
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127 elseif value_where == "in_text" then
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128 return s:get_text()
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129
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130 elseif value_where == "in_single_attribute" then
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131 local c = s:get_child(name, namespace)
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132 return c and c.attr[single_attribute]
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133 elseif value_where == "in_text_tag" then
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134 return s:get_child_text(name, namespace)
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135 end
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136 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
137
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
138 function parse_object(schema, s, root)
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
139 local out = {}
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
140 schema = resolve_schema(schema, root)
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11458
diff changeset
141 if type(schema) == "table" and schema.properties then
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
142 for prop, propschema in pairs(schema.properties) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
143 propschema = resolve_schema(propschema, root)
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
144
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
parents: 11455
diff changeset
145 local proptype, value_where, name, namespace, prefix, single_attribute, enums = unpack_propschema(propschema, prop, s.attr.xmlns)
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
146
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
147 if value_where == "in_children" and type(propschema) == "table" then
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
148 if proptype == "object" then
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
149 local c = s:get_child(name, namespace)
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
150 if c then
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
151 out[prop] = parse_object(propschema, c, root);
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
152 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
153 elseif proptype == "array" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
154 local a = parse_array(propschema, s, root);
11481
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
155 if a and a[1] ~= nil then
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
156 out[prop] = a;
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
157 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
158 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
159 error("unreachable")
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
160 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
161 elseif value_where == "in_wrapper" and type(propschema) == "table" and proptype == "array" then
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
162 local wrapper = s:get_child(name, namespace);
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
163 if wrapper then
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
164 out[prop] = parse_array(propschema, wrapper, root);
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
165 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
166 else
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
167 local value = extract_value(s, value_where, proptype, name, namespace, prefix, single_attribute, enums)
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
168
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
169 out[prop] = totype(proptype, value)
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
170 end
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
171 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
172 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
173
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
174 return out
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
175 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
177 function parse_array(schema, s, root)
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
178 local itemschema = resolve_schema(schema.items, root);
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
179 local proptype, value_where, child_name, namespace, prefix, single_attribute, enums = unpack_propschema(itemschema, nil, s.attr.xmlns)
11466
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
180 local attr_name
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
181 if value_where == "in_single_attribute" then
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
182 value_where = "in_attribute";
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
183 attr_name = single_attribute;
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
184 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
185 local out = {}
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
186
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
187 if proptype == "object" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
188 if type(itemschema) == "table" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
189 for c in s:childtags(child_name, namespace) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
190 table.insert(out, parse_object(itemschema, c, root));
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
191 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
192 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
193 error("array items must be schema object")
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
194 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
195 elseif proptype == "array" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
196 if type(itemschema) == "table" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
197 for c in s:childtags(child_name, namespace) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
198 table.insert(out, parse_array(itemschema, c, root));
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
199 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
200 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
201 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
202 for c in s:childtags(child_name, namespace) do
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
203 local value = extract_value(c, value_where, proptype, attr_name or child_name, namespace, prefix, single_attribute, enums)
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
204
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
205 table.insert(out, totype(proptype, value));
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
206 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
207 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
208 return out
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
209 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
210
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
211 local function parse(schema, s)
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
212 if schema.type == "object" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
213 return parse_object(schema, s, schema)
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
214 elseif schema.type == "array" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
215 return parse_array(schema, s, schema)
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
216 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
217 error("top-level scalars unsupported")
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
218 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
219 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
220
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
221 local function toxmlstring(proptype, v)
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
222 if proptype == "string" and type(v) == "string" then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
223 return v
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
224 elseif proptype == "number" and type(v) == "number" then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
225 return string.format("%g", v)
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
226 elseif proptype == "integer" and type(v) == "number" then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
227 return string.format("%d", v)
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
228 elseif proptype == "boolean" then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
229 return v and "1" or "0"
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
230 end
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
231 end
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
232
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
233 local unparse
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
234
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
235 local function unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix,
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
236 single_attribute, root)
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
237
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
238 if value_where == "in_attribute" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
239 local attr = name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
240 if prefix then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
241 attr = prefix .. ":" .. name
11476
83e127eb91f9 util.datamapper: Deal with locally built stanzas missing xmlns
Kim Alvefur <zash@zash.se>
parents: 11475
diff changeset
242 elseif namespace and namespace ~= current_ns then
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
243 attr = namespace .. "\1" .. name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
244 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
245
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
246 out.attr[attr] = toxmlstring(proptype, v)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
247 elseif value_where == "in_text" then
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
248 out:text(toxmlstring(proptype, v))
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
249 elseif value_where == "in_single_attribute" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
250 assert(single_attribute)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
251 local propattr = {}
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
252
11476
83e127eb91f9 util.datamapper: Deal with locally built stanzas missing xmlns
Kim Alvefur <zash@zash.se>
parents: 11475
diff changeset
253 if namespace and namespace ~= current_ns then
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
254 propattr.xmlns = namespace
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
255 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
256
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
257 propattr[single_attribute] = toxmlstring(proptype, v)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
258 out:tag(name, propattr):up();
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
259
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
260 else
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
261 local propattr
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
262 if namespace ~= current_ns then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
263 propattr = {xmlns = namespace}
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
264 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
265 if value_where == "in_tag_name" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
266 if proptype == "string" and type(v) == "string" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
267 out:tag(v, propattr):up();
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
268 elseif proptype == "boolean" and v == true then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
269 out:tag(name, propattr):up();
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270 end
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271 elseif proptype == "object" and type(propschema) == "table" and type(v) == "table" then
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272 local c = unparse(propschema, v, name, namespace, nil, root);
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273 if c then
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274 out:add_direct_child(c);
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275 end
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276 elseif proptype == "array" and type(propschema) == "table" and type(v) == "table" then
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277 if value_where == "in_wrapper" then
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278 local c = unparse(propschema, v, name, namespace, nil, root);
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279 if c then
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280 out:add_direct_child(c);
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281 end
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282 else
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283 unparse(propschema, v, name, namespace, out, root);
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284 end
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
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285 else
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286 out:text_tag(name, toxmlstring(proptype, v), propattr)
11467
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287 end
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288 end
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289 end
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290
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291 function unparse(schema, t, current_name, current_ns, ctx, root)
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292
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293 if root == nil then
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294 root = schema
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295 end
11436
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296
11458
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diff changeset
297 if schema.xml then
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diff changeset
298 if schema.xml.name then
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diff changeset
299 current_name = schema.xml.name
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300 end
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diff changeset
301 if schema.xml.namespace then
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diff changeset
302 current_ns = schema.xml.namespace
11436
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303 end
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304
11458
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305 end
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diff changeset
306
11462
d1982b7eb00d util.datamapper: Fix arrays nesting one level too deep
Kim Alvefur <zash@zash.se>
parents: 11461
diff changeset
307 local out = ctx or st.stanza(current_name, {xmlns = current_ns})
11458
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parents: 11457
diff changeset
308
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Kim Alvefur <zash@zash.se>
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diff changeset
309 if schema.type == "object" then
11436
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Kim Alvefur <zash@zash.se>
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diff changeset
310
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
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diff changeset
311 for prop, propschema in pairs(schema.properties) do
12133
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diff changeset
312 propschema = resolve_schema(propschema, root)
11436
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diff changeset
313 local v = t[prop]
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Kim Alvefur <zash@zash.se>
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diff changeset
314
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
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diff changeset
315 if v ~= nil then
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
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diff changeset
316 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(propschema, prop, current_ns)
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
317 unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix, single_attribute, root)
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
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parents: 11435
diff changeset
318 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
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diff changeset
319 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
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diff changeset
320 return out
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
321
11458
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diff changeset
322 elseif schema.type == "array" then
12133
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diff changeset
323 local itemschema = resolve_schema(schema.items, root)
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
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diff changeset
324 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(itemschema, current_name, current_ns)
11468
348b191cd850 util.datamapper: Complete array building support
Kim Alvefur <zash@zash.se>
parents: 11467
diff changeset
325 for _, item in ipairs(t) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
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diff changeset
326 unparse_property(out, item, proptype, itemschema, value_where, name, namespace, current_ns, prefix, single_attribute, root)
11458
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Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
327 end
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
328 return out
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
329 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
330 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
331
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
332 return {parse = parse; unparse = unparse}