# This shows how to use the cols accessors for table columns
import tables as tb


class Particle(tb.IsDescription):
    name = tb.StringCol(16, pos=1)  # 16-character String
    lati = tb.Int32Col(pos=2)  # integer
    longi = tb.Int32Col(pos=3)  # integer
    vector = tb.Int32Col(shape=(2,), pos=4)  # Integer
    matrix_2d = tb.Float64Col(shape=(2, 2), pos=5)  # double (double-precision)


# Open a file in "w"rite mode
fileh = tb.open_file("table2.h5", mode="w")
table = fileh.create_table(fileh.root, "table", Particle, "A table")
# Append several rows in only one call
table.append(
    [
        ("Particle:     10", 10, 0, (10 * 9, 1), [[10**2, 11 * 3]] * 2),
        ("Particle:     11", 11, -1, (11 * 10, 2), [[11**2, 10 * 3]] * 2),
        ("Particle:     12", 12, -2, (12 * 11, 3), [[12**2, 9 * 3]] * 2),
        ("Particle:     13", 13, -3, (13 * 11, 4), [[13**2, 8 * 3]] * 2),
        ("Particle:     14", 14, -4, (14 * 11, 5), [[14**2, 7 * 3]] * 2),
    ]
)

print("str(Cols)-->", table.cols)
print("repr(Cols)-->", repr(table.cols))
print("Column handlers:")
for name in table.colnames:
    print(table.cols._f_col(name))

print("Select table.cols.name[1]-->", table.cols.name[1])
print("Select table.cols.name[1:2]-->", table.cols.name[1:2])
print("Select table.cols.name[:]-->", table.cols.name[:])
print("Select table.cols._f_col('name')[:]-->", table.cols._f_col("name")[:])
print("Select table.cols.lati[1]-->", table.cols.lati[1])
print("Select table.cols.lati[1:2]-->", table.cols.lati[1:2])
print("Select table.cols.vector[:]-->", table.cols.vector[:])
print("Select table.cols['matrix2D'][:]-->", table.cols.matrix2D[:])

fileh.close()