class ViewTrack(db.Model):
id = db.Column(db.Integer, primary_key=True)
track_id = db.Column(db.Integer, db.ForeignKey('track.id'))
view_id = db.Column(db.Integer, db.ForeignKey('view.id'))
# display parameters
sticky = db.Column(db.Boolean)
hidden = db.Column(db.Boolean)
y_max = db.Column(db.Integer)
view = db.relationship('View',
backref=backref('view_tracks', cascade="delete"))
track = db.relationship('Track',
backref=backref('view_tracks', cascade="delete"))
def __init__(self, track_id, view_id):
self.track_id = track_id
self.view_id = view_id
self.sticky = False
self.hidden = False
self.y_max = -1
def to_json(self):
track = session.query(Track).get(self.track_id)
data = []
if track.data_type == 'fasta':
fasta = session.query(Fasta).get(track.data_id)
data.append(fasta.header)
data.append("".join(str(base) for base in fasta.base_pairs))
elif track.data_type == 'wig':
wig = session.query(Wig).get(track.data_id)
for wig_val in wig.values:
data.append([wig_val.position, wig_val.value])
elif track.data_type == 'gtf':
gtf = session.query(Gtf).get(track.data_id)
for gtf_val in gtf.values:
data.append(gtf_val.to_json())
elif track.data_type == 'bed':
bed = session.query(Bed).get(track.data_id)
for bed_value in bed.values:
data.append(bed_value.to_json())
return {
'track_name': track.track_name,
'track_id': self.track_id,
'data_type': track.data_type,
'data': data,
'view_track_id': self.id,
'display_params': {
'sticky': self.sticky,
'hidden': self.hidden,
'y_max': self.y_max
}
}
class View(db.Model):
id = db.Column(db.Integer, primary_key=True)
view_name = db.Column(db.String)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
def __init__(self, view_name, user_id):
self.view_name = view_name
self.user_id = user_id
def to_data(self):
view_tracks = []
for view_track in self.view_tracks:
view_tracks.append(view_track.to_json())
return {
'view_name': self.view_name,
'view_tracks': view_tracks,
'user_id': self.user_id,
'view_id': self.id
}
def to_json(self):
track_ids = []
for view_track in self.view_tracks:
track_ids.append(view_track.track_id)
return {
'view_name': self.view_name,
'track_ids': track_ids,
'user_id': self.user_id,
'view_id': self.id
}
class BedBlockStart(db.Model):
id = db.Column(db.Integer, primary_key=True)
index = db.Column(db.Integer)
value = db.Column(db.Integer)
bed_value_id = db.Column(db.Integer, db.ForeignKey("bed_value.id"))
bed_value = db.relationship("BedValue",
backref=db.backref("block_starts",
order_by=index))
def __init__(self, index, value, bed_value_id):
self.index = index
self.value = value
self.bed_value_id = bed_value_id
class BasePair(db.Model):
id = db.Column(db.Integer, primary_key=True)
nucleotide = db.Column(db.String(1))
position = db.Column(db.Integer)
fasta_id = db.Column(db.Integer, db.ForeignKey('fasta.id'))
fasta = db.relationship("Fasta",
backref=db.backref("base_pairs",
order_by=position))
def __init__(self, position, nucleotide, fasta_id):
self.position = position
self.nucleotide = nucleotide
self.fasta_id = fasta_id
def __repr__(self):
return self.nucleotide
class BedValue(db.Model):
id = db.Column(db.Integer, primary_key=True)
chrom = db.Column(db.String)
start = db.Column(db.Integer)
end = db.Column(db.Integer)
name = db.Column(db.String)
score = db.Column(db.Integer)
strand = db.Column(db.Enum("+", "-", "."))
thick_start = db.Column(db.Integer)
thick_end = db.Column(db.Integer)
item_rgb = db.Column(db.Integer)
block_count = db.Column(db.Integer)
# relationship
bed_id = db.Column(db.Integer, db.ForeignKey("bed.id"))
bed = db.relationship("Bed", backref=db.backref("values", order_by=start))
def __init__(self, chrom, start, end, name, score, strand, thick_start,
thick_end, item_rgb, block_count, bed_id):
self.chrom = chrom
self.start = start
self.end = end
self.name = name
self.score = score
self.strand = strand
self.thick_start = thick_start
self.thick_end = thick_end
self.item_rgb = item_rgb
self.block_count = block_count
self.bed_id = bed_id
def to_json(self):
return {
'chrom': self.chrom,
'start': self.start,
'end': self.end,
'name': self.name,
'score': self.score,
'strand': self.strand,
'thick_start': self.thick_start,
'thick_end': self.thick_end,
'item_rgb': self.item_rgb,
'block_count': self.block_count,
'block_sizes': [size.value for size in self.block_sizes],
'block_starts': [start.value for start in self.block_starts]
}
class WigValue(db.Model):
id = db.Column(db.Integer, primary_key=True)
position = db.Column(db.Integer)
value = db.Column(db.Integer)
wig_id = db.Column(db.Integer, db.ForeignKey('wig.id'))
wig = db.relationship("Wig",
backref=db.backref("values", order_by=position))
def __init__(self, position, value, wig_id):
self.position = position
self.value = value
self.wig_id = wig_id
def __repr__(self):
return "wig_id: {} - pos: {} - score: {}".format(
self.wig_id, self.position, self.value)
class GtfValue(db.Model):
id = db.Column(db.Integer, primary_key=True)
# actal atters
seqname = db.Column(db.String)
source = db.Column(db.String)
feature = db.Column(db.String)
start = db.Column(db.Integer)
end = db.Column(db.Integer)
score = db.Column(db.Float)
strand = db.Column(db.Enum("+", "-", "."))
frame = db.Column(db.Integer)
attribute = db.Column(db.String)
# relationship
gtf_id = db.Column(db.Integer, db.ForeignKey("gtf.id"))
gtf = db.relationship("Gtf", backref=db.backref("values", order_by=start))
def __init__(self, seqname, source, feature, start, end, score, strand,
frame, attribute, gtf_id):
self.seqname = seqname
self.source = source
self.feature = feature
self.start = start
self.end = end
self.score = score
self.strand = strand
self.frame = frame
self.attribute = attribute
self.gtf_id = gtf_id
def to_json(self):
return {
'seqname': self.seqname,
'source': self.source,
'feature': self.feature,
'start': self.start,
'end': self.end,
'score': self.score,
'strand': self.strand,
'frame': self.frame,
'attribute': self.attribute,
}
class Track(db.Model):
id = db.Column(db.Integer, primary_key=True)
track_name = db.Column(db.String)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
data_id = db.Column(db.Integer)
data_type = db.Column(db.Enum('wig', 'bed', 'gtf', 'fasta'))
file_name = db.Column(db.String)
def __init__(self, track_name, user_id, data_type, data_id, file_name):
self.track_name = track_name
self.user_id = user_id
self.data_type = data_type
self.data_id = data_id
self.file_name = file_name
def to_json(self):
return {
'track_id': self.id,
'track_name': self.track_name,
'user_id': self.user_id,
'data_type': self.data_type,
'data_id': self.data_id,
'file_name': self.file_name
}