Completed
Push — master ( 12c3f6...3ce342 )
by Andreas
05:20
created

manager::resolve_targetclass()   B

Complexity

Conditions 5
Paths 6

Size

Total Lines 20
Code Lines 13

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 11
CRAP Score 5.246

Importance

Changes 0
Metric Value
cc 5
eloc 13
nc 6
nop 1
dl 0
loc 20
ccs 11
cts 14
cp 0.7856
crap 5.246
rs 8.8571
c 0
b 0
f 0
1
<?php
2
/**
3
 * @author CONTENT CONTROL http://www.contentcontrol-berlin.de/
4
 * @copyright CONTENT CONTROL http://www.contentcontrol-berlin.de/
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 * @license http://www.gnu.org/licenses/gpl.html GNU General Public License
6
 */
7
8
namespace midgard\portable\mgdschema;
9
10
use midgard\portable\xmlreader;
11
use midgard\portable\storage\connection;
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13
class manager
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{
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    /**
16
     *
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     * @var array
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     */
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    private $types;
20
21
    /**
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     *
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     * @var array
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     */
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    private $schemadirs;
26
27
    /**
28
     *
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     * @var string
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     */
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    private $namespace;
32
33
    /**
34
     *
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     * @var array
36
     */
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    private $merged_types = [];
38
39
    /**
40
     *
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     * @var array
42
     */
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    private $child_classes = [];
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45 14
    public function __construct(array $schemadirs, $namespace)
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    {
47 14
        $this->schemadirs = $schemadirs;
48 14
        $this->namespace = $namespace;
49 14
    }
50
51 16
    public function get_types()
52
    {
53 16
        $this->initialize();
54 16
        return $this->types;
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    }
56
57 11
    public function get_inherited_mapping()
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    {
59 11
        $this->initialize();
60 11
        return $this->merged_types;
61
    }
62
63 14
    public function get_child_classes($typename)
64
    {
65 14
        $this->initialize();
66 14
        if (array_key_exists($typename, $this->child_classes)) {
67 9
            return $this->child_classes[$typename];
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        }
69 11
        return [];
70
    }
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72 15
    public function resolve_targetclass(property $property)
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    {
74 15
        $this->initialize();
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76 15
        $fqcn = $property->link['target'];
77 15
        if (!empty($this->namespace)) {
78 15
            $fqcn = $this->namespace . '\\' . $fqcn;
79 15
        }
80
81 15
        if (   array_key_exists($fqcn, $this->types)
82 15
            || $property->link['target'] === $property->get_parent()->name) {
83 15
            $target_class = $property->link['target'];
84 15
        } else {
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            if (!array_key_exists($property->link['target'], $this->merged_types)) {
86
                throw new \Exception('Link to unknown class ' . $property->link['target']);
87
            }
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            $target_class = $this->merged_types[$property->link['target']];
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        }
90 15
        return $target_class;
91
    }
92
93 19
    private function initialize()
94
    {
95 19
        if ($this->types !== null) {
96 18
            return;
97
        }
98 14
        $reader = new xmlreader;
99 14
        $types = $reader->parse(dirname(dirname(__DIR__)) . '/xml/core.xml');
100
101 14
        foreach ($this->schemadirs as $schemadir) {
102 14
            foreach (glob($schemadir . '*.xml', GLOB_NOSORT) as $filename) {
103 14
                if (!file_exists($filename)) {
104
                    connection::log()->warning('File exists check for ' . $filename . ' returned false, skipping');
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                    continue;
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                }
107 14
                $types = array_merge($types, $reader->parse($filename));
108 14
            }
109 14
        }
110
111 14
        $tablemap = [];
112 14
        foreach ($types as $name => $type) {
113 14
            if ($type->parent) {
114 14
                $this->register_child_class($type);
115 14
            }
116
117 14
            if (!array_key_exists($type->table, $tablemap)) {
118 14
                $tablemap[$type->table] = [];
119 14
            }
120 14
            $tablemap[$type->table][] = $type;
121 14
        }
122
123 14
        foreach ($tablemap as $name => $types) {
124 14
            if (count($types) == 1) {
125 14
                $this->add_type($types[0]);
126 14
                unset($tablemap[$name]);
127 14
            }
128 14
        }
129
130
        // We need to process those separately, to be sure the targets for rewriting links are present
131 14
        while ($types = array_pop($tablemap)) {
132 5
            if (!$this->create_merged_types($types)) {
133
                array_push($types, $tablemap);
134
            }
135 5
        }
136 14
    }
137
138 14
    private function register_child_class(type $type)
139
    {
140 14
        if (!array_key_exists($type->parent, $this->child_classes)) {
141 14
            $this->child_classes[$type->parent] = [];
142 14
        }
143 14
        $this->child_classes[$type->parent][$type->name] = $type->parentfield;
144 14
    }
145
146
    /**
147
     * This sort of provides a workaround for situations where two tables use the same name
148
     */
149 5
    private function create_merged_types(array $types)
150
    {
151 5
        $root_type = null;
152 5
        foreach ($types as $i => $type) {
153
            // TODO: We should have a second pass here that prefers classnames starting with midgard_
154 5
            if ($type->extends === '\\midgard\\portable\\api\\object') {
155 5
                $root_type = $type;
156 5
                unset($types[$i]);
157 5
                break;
158
            }
159 5
        }
160 5
        if (empty($root_type)) {
161
            throw new \Exception('could not determine root type of merged group');
162
        }
163
164 5
        foreach ($types as $type) {
165 5
            foreach ($type->get_properties() as $property) {
166 5
                if ($root_type->has_property($property->name)) {
167 5
                    $root_property = $root_type->get_property($property->name);
168 5 View Code Duplication
                    if ($root_property->field !== $property->field) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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169
                        connection::log()->error('Naming collision in ' . $root_type->name . ': Field ' . $type->name . '.' . $property->name . ' cannot use column ' . $property->field);
170
                    }
171 5 View Code Duplication
                    if ($root_property->type !== $property->type) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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172
                        connection::log()->warn('Naming collision in ' . $root_type->name . ': Field ' . $type->name . '.' . $property->name . ' cannot use type ' . $property->type);
173
                    }
174 5
                    continue;
175
                }
176 5
                $root_type->add_property($property);
177 5
            }
178
179 5
            if (array_key_exists($type->name, $this->child_classes)) {
180 5
                foreach ($this->child_classes[$type->name] as $childname => $parentfield) {
181 5
                    $child_type = $this->get_type_by_shortname($childname);
182 5
                    if ($child_type === null) {
183
                        return false;
184
                    }
185
186 5
                    $child_type->parent = $root_type->name;
187 5
                    $this->register_child_class($child_type);
188 5
                }
189 5
                unset($this->child_classes[$type->name]);
190 5
            }
191 5
            $this->merged_types[$type->name] = $root_type->name;
192 5
        }
193 5
        $this->add_type($root_type);
194 5
        return true;
195
    }
196
197 5
    private function get_type_by_shortname($classname)
198
    {
199 5
        $fqcn = $classname;
200 5
        if (!empty($this->namespace)) {
201 5
            $fqcn = $this->namespace . '\\' . $classname;
202 5
        }
203 5
        if (array_key_exists($fqcn, $this->types)) {
204
            return $this->types[$fqcn];
205 5
        } elseif (array_key_exists($classname, $this->merged_types)) {
206 5
            $fqcn = $this->merged_types[$classname];
207 5
            if (!empty($this->namespace)) {
208 5
                $fqcn = $this->namespace . '\\' . $fqcn;
209 5
            }
210 5
            return $this->types[$fqcn];
211
        }
212
        return null;
213
    }
214
215 14
    private function add_type(type $type)
216
    {
217 14
        $classname = $type->name;
218
        // TODO: This should probably be in classgenerator
219 14
        if ($classname === 'midgard_user') {
220 14
            $type->extends = 'base_user';
221 14
        }
222 14
        if ($classname === 'midgard_person') {
223 14
            $type->extends = 'base_person';
224 14
        }
225 14
        if ($classname === 'midgard_parameter') {
226 14
            $type->extends = 'base_parameter';
227 14
        }
228 14
        if ($classname === 'midgard_repligard') {
229 14
            $type->extends = 'base_repligard';
230 14
        }
231 14
        if ($classname === 'midgard_attachment') {
232 14
            $type->extends = 'base_attachment';
233 14
        }
234 14
        if (!empty($this->namespace)) {
235 14
            $classname = $this->namespace . '\\' . $classname;
236 14
        }
237 14
        $this->types[$classname] = $type;
238 14
    }
239
}
240