94 lines
3.0 KiB
Python
94 lines
3.0 KiB
Python
fields = {
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'book':
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[('isbn', 's'), ('title', 's'), ('category', 's'),
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('subtitle', 's'), ('persons', 'd'), ('publisher', 's'),
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('published_year', 's'), ('edition', 's'), ('num_pages', 's'),
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('series', 's'), ('description', 's'), # TODO picture, thumbnail
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('references', 'd')],
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'person':
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[('id', 's'), ('first_name', 's'), ('last_name', 's')],
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'category':
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[('id', 's'), ('name', 's'), ('placement', 'l')] }
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action_fields = {
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'new-book':
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{ 'type': 'book',
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'required': ['isbn', 'title', 'category'] },
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'edit-book':
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{ 'type': 'book',
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'required': ['isbn'] },
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'delete-book':
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{ 'type': 'book',
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'required': ['isbn'] },
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'new-person':
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{ 'type': 'person',
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'required': ['id', 'first_name', 'last_name'] },
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'edit-person':
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{ 'type': 'person',
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'required': ['id'] },
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'delete-person':
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{ 'type': 'person',
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'required': ['id'] },
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'new-category':
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{ 'type': 'category',
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'required': ['id', 'name'] },
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'edit-category':
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{ 'type': 'category',
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'required': ['id'] },
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'delete-category':
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{ 'type': 'category',
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'required': ['id'] } }
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def read_action(lines):
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d = {}
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lastfield = None
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for line in lines:
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if len(line) == 0:
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raise 'Empty line in action'
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if line[0] in [' ', '\t']: # continuation line
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if not lastfield:
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raise 'First line is continuation line'
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d[lastfield] = d[lastfield] + '\n' + line.strip()
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else:
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field, value = line.split(':', 1)
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# TODO skriv ferdig
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def write_field_value_str(val):
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lines = ''
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if not val:
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val = ''
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val = unicode(val)
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value_lines = val.split('\n')
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for l in value_lines:
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lines += ' ' + l + '\n'
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return lines
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def write_field_value_dict(val):
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lines = '\n'
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for (key,values) in val.items():
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for single_value in values:
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lines += ' ' + key + ' ' + unicode(single_value) + '\n'
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return lines
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def write_field_value_list(val):
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lines = ''
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for single_value in val:
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lines += ' ' + unicode(single_value)
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return lines
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def write_action(d):
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action = d['action']
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lines = 'action: ' + action + '\n'
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data_type = action_fields[action]['type']
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for field, ftype in fields[data_type]:
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if field in d:
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value_writer = {'s': write_field_value_str,
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'd': write_field_value_dict,
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'l': write_field_value_list}[ftype]
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lines += field + ':' + value_writer(d[field])
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return lines
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def write_actionlist(actions):
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return '\n'.join(map(write_action, actions))
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# test: print write_actionlist([{'action':'new-book','isbn':'434545'},{'action':'edit-book','isbn':'654654745','persons':{'author':['ab','foo'],'illustrator':['moo']}},{'action':'edit-category','id':'matematikk','name':'Matematikk','placement':['T10','T11']}])
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