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101 lines
3.1 KiB
Python
101 lines
3.1 KiB
Python
import server.models.models
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from server.models.models import Jsonifiable
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from neomodel import StructuredNode, StringProperty, RelationshipManager, \
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UniqueIdProperty, DateProperty, StructuredRel, DateTimeProperty, StructuredRel, \
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Property, RelationshipDefinition
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import json
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from typing import Type, Tuple, Dict, List, Optional, Generator
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def constructor(cls: Type[StructuredNode]) -> str:
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return 'constructor(json) {\n' + \
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f' super(json)\n' + \
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' }'
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def get_set_attr(name, attr) -> str:
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if RelationshipDefinition in attr.__class__.__mro__:
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return f"""
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get_{name}() {{
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return this._get_relation('{name}')
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}}
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link_{name}(ref) {{
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return this._link_relation('{name}', ref)
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}}
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unlink_{name}(ref) {{
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return this._unlink_relation('{name}', ref)
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}}
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"""
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else:
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return f"""
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get_{name}() {{
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return this.json.{name}
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}}
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""" + f"""
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set_{name}(new_val) {{
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this._set('{name}', new_val)
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}}
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""" if name != 'uid' else ''
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def all_attrs(cls):
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return '\n'.join([ get_set_attr(name, val) for name, val in get_relevant_attributes(cls)])
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def js_representation(cls: Type[StructuredNode]) -> str:
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props, rels = get_properties_and_relations(cls)
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return f"""models.{cls.__name__} = class {cls.__name__} extends StructuredNode {{
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{constructor(cls)}
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{all_attrs(cls)}
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}}
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StructuredNode.registerClassDefinition(models.{cls.__name__}, {json.dumps(props)}, {json.dumps(rels)})
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"""
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def get_relevant_attributes(cls: Type[StructuredNode]) -> Generator[None, Tuple[str, Property], None]:
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for name, value in vars(cls).items():
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if name[0] == '_' or name[0].isupper() and not isinstance(value, (RelationshipDefinition, Property)):
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continue
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yield name, value
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def get_properties_and_relations(cls) -> Tuple[Dict[str, dict], Dict[str, dict]]:
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props = dict()
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rels = dict()
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for name, value in get_relevant_attributes(cls):
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if isinstance(value, RelationshipDefinition):
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target_cls = value._raw_class.__name__ if not isinstance(value._raw_class, str) else value._raw_class
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rels[name] = {
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'field': name,
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'target': target_cls,
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'cardinality': value.manager.__name__
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}
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elif isinstance(value, Property):
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props[name] = {
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'field': name,
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'type': value.__class__.__name__,
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'required': value.required
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}
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return props, rels
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if __name__ == '__main__':
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reps = list()
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reps.append("// This file was generated by running js_conversion.py\n" +
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"// It converts the neomodel declaration of this element into js classes.\n" +
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"(() => {\nconst models = window.models || {}")
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for name, cls in vars(server.models.models).items():
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if hasattr(cls, '__mro__') and StructuredNode in cls.__mro__ and StructuredNode != cls.__mro__[0]:
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reps.append(js_representation(cls))
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reps.append('window.models = models;\n})()')
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print('\n\n\n'.join(reps))
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