Commit 85f8dd96 authored by delanoe's avatar delanoe

Merge branch 'refactoring-rom' into refactoring-alex

parents 375735e5 36a68044
......@@ -2,7 +2,7 @@ from gargantext.util.db import *
from .nodes import Node
__all__ = ['Ngram', 'NodeNgram', 'NodeNgramNgram']
__all__ = ['Ngram', 'NodeNgram', 'NodeNodeNgram', 'NodeNgramNgram']
class Ngram(Base):
......@@ -18,6 +18,23 @@ class NodeNgram(Base):
ngram_id = Column(Integer, ForeignKey(Ngram.id, ondelete='CASCADE'), primary_key=True)
weight = Column(Float)
class NodeNodeNgram(Base):
""" for instance for tfidf:
(
doc ::Node ,
corpus ::Node ,
word ::Ngram ,
tfidf of ngram in doc in corpus ::Float (real)
)
"""
__tablename__ = 'nodes_nodes_ngrams'
node1_id = Column(Integer, ForeignKey(Node.id, ondelete='CASCADE'), primary_key=True)
node2_id = Column(Integer, ForeignKey(Node.id, ondelete='CASCADE'), primary_key=True)
ngram_id = Column(Integer, ForeignKey(Ngram.id, ondelete='CASCADE'), primary_key=True)
score = Column(Float(precision=24))
# précision max 24 bit pour un type sql "real" (soit 7 chiffres après virgule)
# sinon par défaut on aurait un type sql "double_precision" (soit 15 chiffres)
# (cf. www.postgresql.org/docs/9.4/static/datatype-numeric.html#DATATYPE-FLOAT)
class NodeNgramNgram(Base):
__tablename__ = 'nodes_ngrams_ngrams'
......
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