Mercurial > dive4elements > river

annotate backend/contrib/shpimporter/dgm.py @ 8449:f61e2791ccdf

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(issue1733) Fix locationdistancepanel There is now a central method to setup the listgrids and connect the Input completion pins. The old variant with three tables was broken and had did many duplicated things. Comments should also be clearer to point out which code path belongs to which input state.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 27 Oct 2014 17:00:40 +0100
parents bb5bd48b80f6
children
rev   line source
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5b50247d4d99 Use latin1 as encoding in the dgm importer to make it easier matching latin1
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1 # -*- coding: latin-1 -*-
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2
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3 import codecs
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4 import utils
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5 import datetime
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6
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7 def latin(string):
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8 return unicode(string, "latin1")
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9
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10 import logging
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11 logger = logging.getLogger("DGM")
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12
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13
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14 # <dbfield> : (<csvfield>, conversion function)
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15 DGM_MAP = {
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16 "projection" : "Projektion",
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17 "elevation_state" : latin("H�henstatus"),
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18 "format" : "Format",
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19 "border_break" : ("Bruchkanten",
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20 lambda x: True if x.lower() == "Ja" else False),
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21 "resolution" : (latin("Aufl�sung"), lambda x: x),
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22 # "description" :
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23 "srid" : "SRID",
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24 "path" : ("Pfad_Bestand", lambda x: x),
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25 }
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26
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27 SQL_INSERT_DGT = "INSERT INTO dem (river_id, name," \
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28 " time_interval_id, range_id, " + ", ".join(DGM_MAP.keys()) + \
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29 ") VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)"
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30 SQL_INSERT_DGT_ORA = "INSERT INTO dem (river_id, name," \
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31 " time_interval_id, range_id, " + ", ".join(DGM_MAP.keys()) + \
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32 ") VALUES (:s, :s, :s, :s, :s, :s, :s, :s, :s, :s, :s)"
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33 SQL_SELECT_TIME_ID = """
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34 SELECT id FROM time_intervals WHERE start_time = %s AND stop_time = %s
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35 """
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36 SQL_INSERT_TIME_ID = """
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37 INSERT INTO time_intervals (id, start_time, stop_time) VALUES (%s, %s, %s)
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38 """
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39 SQL_SELECT_TIME_ID_ORA = """
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40 SELECT id FROM time_intervals WHERE start_time = :s AND stop_time = :s
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41 """
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42 SQL_INSERT_TIME_ID_ORA = """
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43 INSERT INTO time_intervals (id, start_time, stop_time) VALUES (:s, :s, :s)
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44 """
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45 SQL_SELECT_RANGE_ID = """
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46 SELECT id FROM ranges WHERE river_id = %s AND a = %s AND b = %s
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47 """
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48 SQL_INSERT_RANGE_ID = """
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49 INSERT INTO ranges (id, river_id, a, b) VALUES (%s, %s, %s, %s)
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50 """
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51 SQL_SELECT_RANGE_ID_ORA = """
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52 SELECT id FROM ranges WHERE river_id = :s AND a = :s AND b = :s
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53 """
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54 SQL_INSERT_RANGE_ID_ORA = """
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55 INSERT INTO ranges (id, river_id, a, b) VALUES (:s, :s, :s, :s)
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56 """
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57 SQL_NEXT_ID = "select nextval('%s_ID_SEQ')"
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58 SQL_NEXT_ID_ORA = "select %s_ID_SEQ.nextval FROM dual"
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59
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60 def next_id(cur, relation, oracle):
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61 if oracle:
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62 cur.execute(SQL_NEXT_ID_ORA % relation.upper())
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63 else:
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64 cur.execute(SQL_NEXT_ID % relation.upper())
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65 idx = cur.fetchone()[0]
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66 return idx
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67
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68 def get_range_id(cur, river_id, a, b, oracle):
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69 if oracle:
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70 cur.execute(SQL_SELECT_RANGE_ID_ORA, (river_id, a, b))
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71 else:
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72 cur.execute(SQL_SELECT_RANGE_ID, (river_id, a, b))
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73 row = cur.fetchone()
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74 if row: return row[0]
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75 idx = next_id(cur, "ranges", oracle)
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76 if oracle:
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77 cur.execute(SQL_INSERT_RANGE_ID_ORA, (idx, river_id, a, b))
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78 else:
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79 cur.execute(SQL_INSERT_RANGE_ID, (idx, river_id, a, b))
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80 cur.connection.commit()
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81 return idx
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82
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83 def get_time_interval_id(cur, a, b, oracle):
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84 if not a or not b:
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85 return None
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86 if oracle:
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87 cur.execute(SQL_SELECT_TIME_ID_ORA, (a, b))
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88 else:
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89 cur.execute(SQL_SELECT_TIME_ID, (a, b))
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90 row = cur.fetchone()
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91 if row: return row[0]
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92 idx = next_id(cur, "time_intervals", oracle)
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93 if oracle:
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94 cur.execute(SQL_INSERT_TIME_ID_ORA, (idx, a, b))
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95 else:
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96 cur.execute(SQL_INSERT_TIME_ID, (idx, a, b))
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97 cur.connection.commit()
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98 return idx
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99
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100 def insertRiverDgm(dbconn, dgmfile, river_name, dry_run, oracle):
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101 with codecs.open(dgmfile, "r", "latin1") as csvfile:
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102 firstline = csvfile.readline()
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103 names = firstline.split(";")
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104 namedict = {}
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105 field_nr = 0
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106 for name in names:
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107 namedict[name] = field_nr
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108 field_nr += 1
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109
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110 river_id = utils.getRiverId(dbconn, river_name, oracle)
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111 for line in csvfile:
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112 fields = line.split(";")
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113 if not fields: continue
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114 if fields[namedict[latin("Gew�sser")]] != \
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115 unicode(utils.getUTF8(river_name),'UTF-8'):
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116 continue
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117 else:
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118 values=[]
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parents:
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119 for key, val in DGM_MAP.items():
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120 if isinstance(val, tuple):
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parents:
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121 values.append(val[1](fields[namedict[val[0]]]))
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122 else:
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123 values.append(unicode.encode(
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parents:
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124 fields[namedict[val]], "UTF-8"))
7004
bb5bd48b80f6 DGM-importer: enforce a < b for ranges.
Tom Gottfried <tom.gottfried@intevation.de>
parents: 5838
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125 km_von = min(float(fields[namedict["km_von"]]),
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Tom Gottfried <tom.gottfried@intevation.de>
parents: 5838
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126 float(fields[namedict["km_bis"]]))
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Tom Gottfried <tom.gottfried@intevation.de>
parents: 5838
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127 km_bis = max(float(fields[namedict["km_von"]]),
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Tom Gottfried <tom.gottfried@intevation.de>
parents: 5838
diff changeset
128 float(fields[namedict["km_bis"]]))
5213
76818dc2c937 Importer: Handle empty year fields in dgm csv
Andre Heinecke <aheinecke@intevation.de>
parents: 5210
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129 year_from = None
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Andre Heinecke <aheinecke@intevation.de>
parents: 5210
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130 year_to = None
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parents: 5210
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131 try:
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parents: 5210
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132 year_from = datetime.datetime(
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parents: 5210
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133 int(fields[namedict["Jahr_von"]]), 1, 1)
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parents: 5210
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134 year_to = datetime.datetime(
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parents: 5210
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135 int(fields[namedict["Jahr_bis"]]),1 ,1)
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parents: 5210
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136 except ValueError:
76818dc2c937 Importer: Handle empty year fields in dgm csv
Andre Heinecke <aheinecke@intevation.de>
parents: 5210
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137 logger.warn("Invalid numbers (or none) found in year_from and year_to")
5210
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Andre Heinecke <aheinecke@intevation.de>
parents: 5156
diff changeset
138
5553
8d2c576b5a40 Convert the river name into unicode
Andre Heinecke <aheinecke@intevation.de>
parents: 5546
diff changeset
139 name = "%s KM %s - %s" % (unicode(river_name, "latin1"), km_von, km_bis)
4975
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parents:
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140 cur = dbconn.cursor()
5210
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parents: 5156
diff changeset
141 range_id = get_range_id(cur, river_id, float(km_von),
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parents: 5156
diff changeset
142 float(km_bis), oracle)
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Andre Heinecke <aheinecke@intevation.de>
parents: 5156
diff changeset
143 time_interval_id = get_time_interval_id(cur, year_from,
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parents: 5156
diff changeset
144 year_to, oracle)
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parents: 5156
diff changeset
145
5036
d6860fca89e4 Pull information about the backend into dgm.
Andre Heinecke <aheinecke@intevation.de>
parents: 4993
diff changeset
146 if oracle:
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Andre Heinecke <aheinecke@intevation.de>
parents: 4993
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147 stmt = SQL_INSERT_DGT_ORA
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parents: 4993
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148 else:
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parents: 4993
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149 stmt = SQL_INSERT_DGT
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parents: 4993
diff changeset
150
5210
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parents: 5156
diff changeset
151 cur.execute(stmt, [river_id, name, time_interval_id,
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parents: 5156
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152 range_id] + values)
4975
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parents:
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153
9eea3cd22ee7 Add dgm file reader although an awk script should have been more appropiate
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parents:
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154 if not dry_run:
9eea3cd22ee7 Add dgm file reader although an awk script should have been more appropiate
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parents:
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155 dbconn.commit()
9eea3cd22ee7 Add dgm file reader although an awk script should have been more appropiate
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parents:
diff changeset
156
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